STM32L0x0 Peripheral Coverage

ADC

0x40012400: Analog-to-digital converter

68/69 fields covered.

Toggle register map

Offset	Name	31	30	28	27	25	24	23	22	21	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
0x0	ISR																	EOCAL				AWD			OVR	EOS	EOC	EOSMP	ADRDY
0x4	IER																	EOCALIE				AWDIE			OVRIE	EOSIE	EOCIE	EOSMPIE	ADRDYIE
0x8	CR	ADCAL		ADVREGEN																					ADSTP		ADSTART	ADDIS	ADEN
0xc	CFGR1		AWDCH					AWDEN	AWDSGL				DISCEN	AUTOFF	WAIT	CONT	OVRMOD	EXTEN			EXTSEL			ALIGN	RES		SCANDIR	DMACFG	DMAEN
0x10	CFGR2	CKMODE																		TOVS	OVSS				OVSR				OVSE
0x14	SMPR																										SMP
0x20	TR				HT													LT
0x28	CHSELR										CHSEL18	CHSEL17	CHSEL16	CHSEL15	CHSEL14	CHSEL13	CHSEL12	CHSEL11	CHSEL10	CHSEL9	CHSEL8	CHSEL7	CHSEL6	CHSEL5	CHSEL4	CHSEL3	CHSEL2	CHSEL1	CHSEL0
0x40	DR													DATA
0xb4	CALFACT																						CALFACT
0x308	CCR					LFMEN	VLCDEN	TSEN	VREFEN	PRESC

Toggle registers

ISR

interrupt and status register

Offset: 0x0, size: 32, reset: 0x00000000, access: read-write

7/7 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
				EOCAL rw				AWD rw			OVR rw	EOS rw	EOC rw	EOSMP rw	ADRDY rw

Toggle fields

ADRDY

Bit 0: ADC ready.

Allowed values:
0: NotReady: ADC not yet ready to start conversion
1: Ready: ADC ready to start conversion

EOSMP

Bit 1: End of sampling flag.

Allowed values:
0: NotAtEnd: Not at the end of the samplings phase
1: AtEnd: End of sampling phase reached

EOC

Bit 2: End of conversion flag.

Allowed values:
0: NotComplete: Channel conversion is not complete
1: Complete: Channel conversion complete

EOS

Bit 3: End of sequence flag.

Allowed values:
0: NotComplete: Conversion sequence is not complete
1: Complete: Conversion sequence complete

OVR

Bit 4: ADC overrun.

Allowed values:
0: NoOverrun: No overrun occurred
1: Overrun: Overrun occurred

AWD

Bit 7: Analog watchdog flag.

Allowed values:
0: NoEvent: No analog watchdog event occurred
1: Event: Analog watchdog event occurred

EOCAL

Bit 11: End Of Calibration flag.

Allowed values:
0: NotComplete: Calibration is not complete
1: Complete: Calibration complete

IER

interrupt enable register

Offset: 0x4, size: 32, reset: 0x00000000, access: read-write

7/7 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
				EOCALIE rw				AWDIE rw			OVRIE rw	EOSIE rw	EOCIE rw	EOSMPIE rw	ADRDYIE rw

Toggle fields

ADRDYIE

Bit 0: ADC ready interrupt enable.

Allowed values:
0: Disabled: ADRDY interrupt disabled
1: Enabled: ADRDY interrupt enabled. An interrupt is generated when the ADRDY bit is set.

EOSMPIE

Bit 1: End of sampling flag interrupt enable.

Allowed values:
0: Disabled: EOSMP interrupt disabled
1: Enabled: EOSMP interrupt enabled. An interrupt is generated when the EOSMP bit is set.

EOCIE

Bit 2: End of conversion interrupt enable.

Allowed values:
0: Disabled: EOC interrupt disabled
1: Enabled: EOC interrupt enabled. An interrupt is generated when the EOC bit is set.

EOSIE

Bit 3: End of conversion sequence interrupt enable.

Allowed values:
0: Disabled: EOS interrupt disabled
1: Enabled: EOS interrupt enabled. An interrupt is generated when the EOS bit is set.

OVRIE

Bit 4: Overrun interrupt enable.

Allowed values:
0: Disabled: Overrun interrupt disabled
1: Enabled: Overrun interrupt enabled. An interrupt is generated when the OVR bit is set.

AWDIE

Bit 7: Analog watchdog interrupt enable.

Allowed values:
0: Disabled: Analog watchdog interrupt disabled
1: Enabled: Analog watchdog interrupt enabled

EOCALIE

Bit 11: End of calibration interrupt enable.

Allowed values:
0: Disabled: End of calibration interrupt disabled
1: Enabled: End of calibration interrupt enabled

CR

control register

Offset: 0x8, size: 32, reset: 0x00000000, access: read-write

6/6 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
ADCAL rw			ADVREGEN rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
											ADSTP rw		ADSTART rw	ADDIS rw	ADEN rw

Toggle fields

ADEN

Bit 0: ADC enable command.

Allowed values:
0: Disabled: ADC disabled
1: Enabled: ADC enabled

ADDIS

Bit 1: ADC disable command.

Allowed values:
0: NotDisabling: No disable command active
1: Disabling: ADC disabling

ADSTART

Bit 2: ADC start conversion command.

Allowed values:
0: NotActive: No conversion ongoing
1: Active: ADC operating and may be converting

ADSTP

Bit 4: ADC stop conversion command.

Allowed values:
0: NotStopping: No stop command active
1: Stopping: ADC stopping conversion

ADVREGEN

Bit 28: ADC Voltage Regulator Enable.

Allowed values:
0: Disabled: ADC voltage regulator disabled
1: Enabled: ADC voltage regulator enabled

ADCAL

Bit 31: ADC calibration.

Allowed values:
0: NotCalibrating: ADC calibration either not yet performed or completed
1: Calibrating: ADC calibration in progress

CFGR1

configuration register 1

Offset: 0xc, size: 32, reset: 0x00000000, access: read-write

15/15 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
	AWDCH rw							AWDEN rw	AWDSGL rw						DISCEN rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
AUTOFF rw	WAIT rw	CONT rw	OVRMOD rw	EXTEN rw			EXTSEL rw			ALIGN rw	RES rw		SCANDIR rw	DMACFG rw	DMAEN rw

Toggle fields

DMAEN

Bit 0: Direct memory access enable.

Allowed values:
0: Disabled: DMA disabled
1: Enabled: DMA enabled

DMACFG

Bit 1: Direct memery access configuration.

Allowed values:
0: OneShot: DMA one shot mode selected
1: Circular: DMA circular mode selected

SCANDIR

Bit 2: Scan sequence direction.

Allowed values:
0: Upward: Upward scan (from CHSEL0 to CHSEL18)
1: Backward: Backward scan (from CHSEL18 to CHSEL0)

RES

Bits 3-4: Data resolution.

Allowed values:
0: TwelveBit: 12 bits
1: TenBit: 10 bits
2: EightBit: 8 bits
3: SixBit: 6 bits

ALIGN

Bit 5: Data alignment.

Allowed values:
0: Right: Right alignment
1: Left: Left alignment

EXTSEL

Bits 6-8: External trigger selection.

Allowed values:
0: TIM6_TRGO: Timer 6 TRGO event
1: TIM21_CH2: Timer 21 CH2 event
2: TIM2_TRGO: Timer 2 TRGO event
3: TIM2_CH4: Timer 2 CH4 event
4: TIM22_TRGO: Timer 22 TRGO, Timer 21 TRGO event
5: TIM2_CH3: Timer 2 CH3 event
6: TIM3_TRGO: Timer 3 TRGO event
7: EXTI_LINE11: EXTI line 11 event

EXTEN

Bits 10-11: External trigger enable and polarity selection.

Allowed values:
0: Disabled: Hardware trigger detection disabled
1: RisingEdge: Hardware trigger detection on the rising edge
2: FallingEdge: Hardware trigger detection on the falling edge
3: BothEdges: Hardware trigger detection on both the rising and falling edges

OVRMOD

Bit 12: Overrun management mode.

Allowed values:
0: Preserve: ADC_DR register is preserved with the old data when an overrun is detected
1: Overwrite: ADC_DR register is overwritten with the last conversion result when an overrun is detected

CONT

Bit 13: Single / continuous conversion mode.

Allowed values:
0: Single: Single conversion mode
1: Continuous: Continuous conversion mode

WAIT

Bit 14: Auto-delayed conversion mode.

Allowed values:
0: Disabled: Wait conversion mode off
1: Enabled: Wait conversion mode on

AUTOFF

Bit 15: Auto-off mode.

Allowed values:
0: Disabled: Auto-off mode disabled
1: Enabled: Auto-off mode enabled

DISCEN

Bit 16: Discontinuous mode.

Allowed values:
0: Disabled: Discontinuous mode disabled
1: Enabled: Discontinuous mode enabled

AWDSGL

Bit 22: Enable the watchdog on a single channel or on all channels.

Allowed values:
0: AllChannels: Analog watchdog enabled on all channels
1: SingleChannel: Analog watchdog enabled on a single channel

AWDEN

Bit 23: Analog watchdog enable.

Allowed values:
0: Disabled: Analog watchdog disabled
1: Enabled: Analog watchdog enabled

AWDCH

Bits 26-30: Analog watchdog channel selection.

Allowed values: 0x0-0x12

CFGR2

configuration register 2

Offset: 0x10, size: 32, reset: 0x00000000, access: read-write

5/5 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
CKMODE rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
						TOVS rw	OVSS rw				OVSR rw				OVSE rw

Toggle fields

OVSE

Bit 0: Oversampler Enable.

Allowed values:
0: Disabled: Oversampler disabled
1: Enabled: Oversampler enabled

OVSR

Bits 2-4: Oversampling ratio.

Allowed values:
0: Mul2: 2x
1: Mul4: 4x
2: Mul8: 8x
3: Mul16: 16x
4: Mul32: 32x
5: Mul64: 64x
6: Mul128: 128x
7: Mul256: 256x

OVSS

Bits 5-8: Oversampling shift.

Allowed values: 0x0-0x8

TOVS

Bit 9: Triggered Oversampling.

Allowed values:
0: TriggerAll: All oversampled conversions for a channel are done consecutively after a trigger
1: TriggerEach: Each oversampled conversion for a channel needs a trigger

CKMODE

Bits 30-31: ADC clock mode.

Allowed values:
0: ADCLK: ADCCLK (Asynchronous clock mode)
1: PCLK_Div2: PCLK/2 (Synchronous clock mode)
2: PCLK_Div4: PCLK/4 (Synchronous clock mode)
3: PCLK: PCLK (Synchronous clock mode)

SMPR

sampling time register

Offset: 0x14, size: 32, reset: 0x00000000, access: read-write

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
													SMP rw

Toggle fields

SMP

Bits 0-2: Sampling time selection.

Allowed values:
0: Cycles1_5: 1.5 ADC clock cycles
1: Cycles3_5: 3.5 ADC clock cycles
2: Cycles7_5: 7.5 ADC clock cycles
3: Cycles12_5: 12.5 ADC clock cycles
4: Cycles19_5: 19.5 ADC clock cycles
5: Cycles39_5: 39.5 ADC clock cycles
6: Cycles79_5: 79.5 ADC clock cycles
7: Cycles160_5: 160.5 ADC clock cycles

TR

watchdog threshold register

Offset: 0x20, size: 32, reset: 0x0FFF0000, access: read-write

2/2 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
				HT rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
				LT rw

Toggle fields

LT

Bits 0-11: Analog watchdog lower threshold.

Allowed values: 0x0-0x7ff

HT

Bits 16-27: Analog watchdog higher threshold.

Allowed values: 0x0-0x7ff

CHSELR

channel selection register

Offset: 0x28, size: 32, reset: 0x00000000, access: read-write

19/19 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
													CHSEL18 rw	CHSEL17 rw	CHSEL16 rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
CHSEL15 rw	CHSEL14 rw	CHSEL13 rw	CHSEL12 rw	CHSEL11 rw	CHSEL10 rw	CHSEL9 rw	CHSEL8 rw	CHSEL7 rw	CHSEL6 rw	CHSEL5 rw	CHSEL4 rw	CHSEL3 rw	CHSEL2 rw	CHSEL1 rw	CHSEL0 rw

Toggle fields

CHSEL0

Bit 0: Channel-x selection.

Allowed values:
0: NotSelected: Input Channel is not selected for conversion
1: Selected: Input Channel is selected for conversion

CHSEL1

Bit 1: Channel-x selection.

Allowed values:
0: NotSelected: Input Channel is not selected for conversion
1: Selected: Input Channel is selected for conversion

CHSEL2

Bit 2: Channel-x selection.

Allowed values:
0: NotSelected: Input Channel is not selected for conversion
1: Selected: Input Channel is selected for conversion

CHSEL3

Bit 3: Channel-x selection.

Allowed values:
0: NotSelected: Input Channel is not selected for conversion
1: Selected: Input Channel is selected for conversion

CHSEL4

Bit 4: Channel-x selection.

Allowed values:
0: NotSelected: Input Channel is not selected for conversion
1: Selected: Input Channel is selected for conversion

CHSEL5

Bit 5: Channel-x selection.

Allowed values:
0: NotSelected: Input Channel is not selected for conversion
1: Selected: Input Channel is selected for conversion

CHSEL6

Bit 6: Channel-x selection.

Allowed values:
0: NotSelected: Input Channel is not selected for conversion
1: Selected: Input Channel is selected for conversion

CHSEL7

Bit 7: Channel-x selection.

Allowed values:
0: NotSelected: Input Channel is not selected for conversion
1: Selected: Input Channel is selected for conversion

CHSEL8

Bit 8: Channel-x selection.

Allowed values:
0: NotSelected: Input Channel is not selected for conversion
1: Selected: Input Channel is selected for conversion

CHSEL9

Bit 9: Channel-x selection.

Allowed values:
0: NotSelected: Input Channel is not selected for conversion
1: Selected: Input Channel is selected for conversion

CHSEL10

Bit 10: Channel-x selection.

Allowed values:
0: NotSelected: Input Channel is not selected for conversion
1: Selected: Input Channel is selected for conversion

CHSEL11

Bit 11: Channel-x selection.

Allowed values:
0: NotSelected: Input Channel is not selected for conversion
1: Selected: Input Channel is selected for conversion

CHSEL12

Bit 12: Channel-x selection.

Allowed values:
0: NotSelected: Input Channel is not selected for conversion
1: Selected: Input Channel is selected for conversion

CHSEL13

Bit 13: Channel-x selection.

Allowed values:
0: NotSelected: Input Channel is not selected for conversion
1: Selected: Input Channel is selected for conversion

CHSEL14

Bit 14: Channel-x selection.

Allowed values:
0: NotSelected: Input Channel is not selected for conversion
1: Selected: Input Channel is selected for conversion

CHSEL15

Bit 15: Channel-x selection.

Allowed values:
0: NotSelected: Input Channel is not selected for conversion
1: Selected: Input Channel is selected for conversion

CHSEL16

Bit 16: Channel-x selection.

Allowed values:
0: NotSelected: Input Channel is not selected for conversion
1: Selected: Input Channel is selected for conversion

CHSEL17

Bit 17: Channel-x selection.

Allowed values:
0: NotSelected: Input Channel is not selected for conversion
1: Selected: Input Channel is selected for conversion

CHSEL18

Bit 18: Channel-x selection.

Allowed values:
0: NotSelected: Input Channel is not selected for conversion
1: Selected: Input Channel is selected for conversion

DR

data register

Offset: 0x40, size: 32, reset: 0x00000000, access: read-only

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
DATA r

Toggle fields

DATA

Bits 0-15: Converted data.

Allowed values: 0x0-0xffff

CALFACT

ADC Calibration factor

Offset: 0xb4, size: 32, reset: 0x00000000, access: read-write

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
									CALFACT rw

Toggle fields

CALFACT

Bits 0-6: Calibration factor.

Allowed values: 0x0-0x7f

CCR

ADC common configuration register

Offset: 0x308, size: 32, reset: 0x00000000, access: read-write

4/5 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
						LFMEN rw	VLCDEN rw	TSEN rw	VREFEN rw	PRESC rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0

Toggle fields

PRESC

Bits 18-21: ADC prescaler.

Allowed values:
0: Div1: Input ADC clock not divided
1: Div2: Input ADC clock divided by 2
2: Div4: Input ADC clock divided by 4
3: Div6: Input ADC clock divided by 6
4: Div8: Input ADC clock divided by 8
5: Div10: Input ADC clock divided by 10
6: Div12: Input ADC clock divided by 12
7: Div16: Input ADC clock divided by 16
8: Div32: Input ADC clock divided by 32
9: Div64: Input ADC clock divided by 64
10: Div128: Input ADC clock divided by 128
11: Div256: Input ADC clock divided by 256

VREFEN

Bit 22: VREFINT enable.

Allowed values:
0: Disabled: VREFINT disabled
1: Enabled: VREFINT enabled

TSEN

Bit 23: Temperature sensor enable.

Allowed values:
0: Disabled: Temperature sensor disabled
1: Enabled: Temperature sensor enabled

VLCDEN

Bit 24: VLCD enable.

LFMEN

Bit 25: Low Frequency Mode enable.

Allowed values:
0: Disabled: Low Frequency Mode disabled
1: Enabled: Low Frequency Mode enabled

CRC

0x40023000: Cyclic redundancy check calculation unit

10/10 fields covered.

Toggle register map

Offset	Name	31	15	7	6	4	0
0x0	DR	DR	DR
0x0 (16-bit)	DR16		DR16
0x0 (8-bit)	DR8			DR8
0x4	IDR			IDR
0x8	CR			REV_OUT	REV_IN	POLYSIZE	RESET
0x10	INIT	INIT	INIT
0x14	POL	POL	POL

Toggle registers

DR

Data register

Offset: 0x0, size: 32, reset: 0xFFFFFFFF, access: read-write

1/1 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
DR rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
DR rw

Toggle fields

DR

Bits 0-31: Data register bits.

Allowed values: 0x0-0xffffffff

DR16

Data register - half-word sized

Offset: 0x0, size: 16, reset: 0x0000FFFF, access: read-write

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
DR16 rw

Toggle fields

DR16

Bits 0-15: Data register bits.

Allowed values: 0x0-0xffff

DR8

Data register - byte sized

Offset: 0x0, size: 8, reset: 0x000000FF, access: read-write

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
								DR8 rw

Toggle fields

DR8

Bits 0-7: Data register bits.

Allowed values: 0x0-0xff

IDR

Independent data register

Offset: 0x4, size: 32, reset: 0x00000000, access: read-write

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
								IDR rw

Toggle fields

IDR

Bits 0-7: General-purpose 8-bit data register bits.

Allowed values: 0x0-0xff

CR

Control register

Offset: 0x8, size: 32, reset: 0x00000000, access: Unspecified

4/4 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
								REV_OUT rw	REV_IN rw		POLYSIZE rw				RESET w

Toggle fields

RESET

Bit 0: RESET bit.

Allowed values:
1: Reset: Resets the CRC calculation unit and sets the data register to 0xFFFF FFFF

POLYSIZE

Bits 3-4: Polynomial size.

Allowed values:
0: Polysize32: 32-bit polynomial
1: Polysize16: 16-bit polynomial
2: Polysize8: 8-bit polynomial
3: Polysize7: 7-bit polynomial

REV_IN

Bits 5-6: Reverse input data.

Allowed values:
0: Normal: Bit order not affected
1: Byte: Bit reversal done by byte
2: HalfWord: Bit reversal done by half-word
3: Word: Bit reversal done by word

REV_OUT

Bit 7: Reverse output data.

Allowed values:
0: Normal: Bit order not affected
1: Reversed: Bit reversed output

INIT

Initial CRC value

Offset: 0x10, size: 32, reset: 0xFFFFFFFF, access: read-write

1/1 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
INIT rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
INIT rw

Toggle fields

INIT

Bits 0-31: Programmable initial CRC value.

Allowed values: 0x0-0xffffffff

POL

polynomial

Offset: 0x14, size: 32, reset: 0x04C11DB7, access: read-write

1/1 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
POL rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
POL rw

Toggle fields

POL

Bits 0-31: Programmable polynomial.

Allowed values: 0x0-0xffffffff

DBG

0x40015800: Debug support

14/15 fields covered.

Toggle register map

Offset	Name	31	22	21	12	11	10	6	4	2	1	0
0x0	IDCODE	REV_ID				DEV_ID
0x4	CR									DBG_STANDBY	DBG_STOP	DBG_SLEEP
0x8	APB1_FZ	DBG_LPTIMER_STOP	DBG_I2C2_STOP	DBG_I2C1_STOP	DBG_IWDG_STOP	DBG_WWDG_STOP	DBG_RTC_STOP		DBG_TIMER6_STOP			DBG_TIMER2_STOP
0xc	APB2_FZ							DBG_TIMER22_STO		DBG_TIMER21_STOP

Toggle registers

IDCODE

MCU Device ID Code Register

Offset: 0x0, size: 32, reset: 0x00000000, access: read-only

2/2 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
REV_ID r
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
				DEV_ID r

Toggle fields

DEV_ID

Bits 0-11: Device Identifier.

REV_ID

Bits 16-31: Revision Identifier.

CR

Debug MCU Configuration Register

Offset: 0x4, size: 32, reset: 0x00000000, access: read-write

3/3 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
													DBG_STANDBY rw	DBG_STOP rw	DBG_SLEEP rw

Toggle fields

DBG_SLEEP

Bit 0: Debug Sleep Mode.

Allowed values:
0: Disabled: Debug Sleep Mode Disabled
1: Enabled: Debug Sleep Mode Enabled

DBG_STOP

Bit 1: Debug Stop Mode.

Allowed values:
0: Disabled: Debug Stop Mode Disabled
1: Enabled: Debug Stop Mode Enabled

DBG_STANDBY

Bit 2: Debug Standby Mode.

Allowed values:
0: Disabled: Debug Standby Mode Disabled
1: Enabled: Debug Standby Mode Enabled

APB1_FZ

APB Low Freeze Register

Offset: 0x8, size: 32, reset: 0x00000000, access: read-write

8/8 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
DBG_LPTIMER_STOP rw									DBG_I2C2_STOP rw	DBG_I2C1_STOP rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
			DBG_IWDG_STOP rw	DBG_WWDG_STOP rw	DBG_RTC_STOP rw						DBG_TIMER6_STOP rw				DBG_TIMER2_STOP rw

Toggle fields

DBG_TIMER2_STOP

Bit 0: Debug Timer 2 stopped when Core is halted.

Allowed values:
0: Continue: The counter clock of TIMx is fed even if the core is halted
1: Stop: The counter clock of TIMx is stopped when the core is halted

DBG_TIMER6_STOP

Bit 4: Debug Timer 6 stopped when Core is halted.

Allowed values:
0: Continue: The counter clock of TIMx is fed even if the core is halted
1: Stop: The counter clock of TIMx is stopped when the core is halted

DBG_RTC_STOP

Bit 10: Debug RTC stopped when Core is halted.

Allowed values:
0: Continue: The clock of the RTC counter is fed even if the core is halted
1: Stop: The clock of the RTC counter is stopped when the core is halted

DBG_WWDG_STOP

Bit 11: Debug Window Wachdog stopped when Core is halted.

Allowed values:
0: Continue: The window watchdog counter clock continues even if the core is halted
1: Stop: The window watchdog counter clock is stopped when the core is halted

DBG_IWDG_STOP

Bit 12: Debug Independent Wachdog stopped when Core is halted.

Allowed values:
0: Continue: The independent watchdog counter clock continues even if the core is halted
1: Stop: The independent watchdog counter clock is stopped when the core is halted

DBG_I2C1_STOP

Bit 21: I2C1 SMBUS timeout mode stopped when core is halted.

Allowed values:
0: NormalMode: Same behavior as in normal mode
1: SMBusTimeoutFrozen: I2C3 SMBUS timeout is frozen

DBG_I2C2_STOP

Bit 22: I2C2 SMBUS timeout mode stopped when core is halted.

Allowed values:
0: NormalMode: Same behavior as in normal mode
1: SMBusTimeoutFrozen: I2C3 SMBUS timeout is frozen

DBG_LPTIMER_STOP

Bit 31: LPTIM1 counter stopped when core is halted.

Allowed values:
0: Continue: LPTIM1 counter clock is fed even if the core is halted
1: Stop: LPTIM1 counter clock is stopped when the core is halted

APB2_FZ

APB High Freeze Register

Offset: 0xc, size: 32, reset: 0x00000000, access: read-write

1/2 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
									DBG_TIMER22_STO rw				DBG_TIMER21_STOP rw

Toggle fields

DBG_TIMER21_STOP

Bit 2: Debug Timer 21 stopped when Core is halted.

Allowed values:
0: Continue: The counter clock of TIMx is fed even if the core is halted
1: Stop: The counter clock of TIMx is stopped when the core is halted

DBG_TIMER22_STO

Bit 6: Debug Timer 22 stopped when Core is halted.

DMA1

0x40020000: Direct memory access controller

154/168 fields covered.

Toggle register map

Offset	Name	31	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
0x0	ISR		TEIF[7]	HTIF[7]	TCIF[7]	GIF[7]	TEIF[6]	HTIF[6]	TCIF[6]	GIF[6]	TEIF[5]	HTIF[5]	TCIF[5]	GIF[5]	TEIF[4]	HTIF[4]	TCIF[4]	GIF[4]	TEIF[3]	HTIF[3]	TCIF[3]	GIF[3]	TEIF[2]	HTIF[2]	TCIF[2]	GIF[2]	TEIF[1]	HTIF[1]	TCIF[1]	GIF[1]
0x4	IFCR		CTEIF[7]	CHTIF[7]	CTCIF[7]	CGIF[7]	CTEIF[6]	CHTIF[6]	CTCIF[6]	CGIF[6]	CTEIF[5]	CHTIF[5]	CTCIF[5]	CGIF[5]	CTEIF[4]	CHTIF[4]	CTCIF[4]	CGIF[4]	CTEIF[3]	CHTIF[3]	CTCIF[3]	CGIF[3]	CTEIF[2]	CHTIF[2]	CTCIF[2]	CGIF[2]	CTEIF[1]	CHTIF[1]	CTCIF[1]	CGIF[1]
0x8	CR [1]															MEM2MEM	PL		MSIZE		PSIZE		MINC	PINC	CIRC	DIR	TEIE	HTIE	TCIE	EN
0xc	NDTR [1]														NDT
0x10	PAR [1]	PA													PA
0x14	MAR [1]	MA													MA
0x1c	CR [2]															MEM2MEM	PL		MSIZE		PSIZE		MINC	PINC	CIRC	DIR	TEIE	HTIE	TCIE	EN
0x20	NDTR [2]														NDT
0x24	PAR [2]	PA													PA
0x28	MAR [2]	MA													MA
0x30	CR [3]															MEM2MEM	PL		MSIZE		PSIZE		MINC	PINC	CIRC	DIR	TEIE	HTIE	TCIE	EN
0x34	NDTR [3]														NDT
0x38	PAR [3]	PA													PA
0x3c	MAR [3]	MA													MA
0x44	CR [4]															MEM2MEM	PL		MSIZE		PSIZE		MINC	PINC	CIRC	DIR	TEIE	HTIE	TCIE	EN
0x48	NDTR [4]														NDT
0x4c	PAR [4]	PA													PA
0x50	MAR [4]	MA													MA
0x58	CR [5]															MEM2MEM	PL		MSIZE		PSIZE		MINC	PINC	CIRC	DIR	TEIE	HTIE	TCIE	EN
0x5c	NDTR [5]														NDT
0x60	PAR [5]	PA													PA
0x64	MAR [5]	MA													MA
0x6c	CR [6]															MEM2MEM	PL		MSIZE		PSIZE		MINC	PINC	CIRC	DIR	TEIE	HTIE	TCIE	EN
0x70	NDTR [6]														NDT
0x74	PAR [6]	PA													PA
0x78	MAR [6]	MA													MA
0x80	CR [7]															MEM2MEM	PL		MSIZE		PSIZE		MINC	PINC	CIRC	DIR	TEIE	HTIE	TCIE	EN
0x84	NDTR [7]														NDT
0x88	PAR [7]	PA													PA
0x8c	MAR [7]	MA													MA
0xa8	CSELR		C7S				C6S				C5S				C4S				C3S				C2S				C1S

Toggle registers

ISR

interrupt status register

Offset: 0x0, size: 32, reset: 0x00000000, access: read-only

28/28 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
				TEIF[7] r	HTIF[7] r	TCIF[7] r	GIF[7] r	TEIF[6] r	HTIF[6] r	TCIF[6] r	GIF[6] r	TEIF[5] r	HTIF[5] r	TCIF[5] r	GIF[5] r
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
TEIF[4] r	HTIF[4] r	TCIF[4] r	GIF[4] r	TEIF[3] r	HTIF[3] r	TCIF[3] r	GIF[3] r	TEIF[2] r	HTIF[2] r	TCIF[2] r	GIF[2] r	TEIF[1] r	HTIF[1] r	TCIF[1] r	GIF[1] r

Toggle fields

GIF[1]

Bit 0: Channel 1 Global interrupt flag.

Allowed values:
0: NoEvent: No transfer error, half event, complete event
1: Event: A transfer error, half event or complete event has occured

TCIF[1]

Bit 1: Channel 1 Transfer Complete flag.

Allowed values:
0: NotComplete: No transfer complete event
1: Complete: A transfer complete event has occured

HTIF[1]

Bit 2: Channel 1 Half Transfer Complete flag.

Allowed values:
0: NotHalf: No half transfer event
1: Half: A half transfer event has occured

TEIF[1]

Bit 3: Channel 1 Transfer Error flag.

Allowed values:
0: NoError: No transfer error
1: Error: A transfer error has occured

GIF[2]

Bit 4: Channel 2 Global interrupt flag.

Allowed values:
0: NoEvent: No transfer error, half event, complete event
1: Event: A transfer error, half event or complete event has occured

TCIF[2]

Bit 5: Channel 2 Transfer Complete flag.

Allowed values:
0: NotComplete: No transfer complete event
1: Complete: A transfer complete event has occured

HTIF[2]

Bit 6: Channel 2 Half Transfer Complete flag.

Allowed values:
0: NotHalf: No half transfer event
1: Half: A half transfer event has occured

TEIF[2]

Bit 7: Channel 2 Transfer Error flag.

Allowed values:
0: NoError: No transfer error
1: Error: A transfer error has occured

GIF[3]

Bit 8: Channel 3 Global interrupt flag.

Allowed values:
0: NoEvent: No transfer error, half event, complete event
1: Event: A transfer error, half event or complete event has occured

TCIF[3]

Bit 9: Channel 3 Transfer Complete flag.

Allowed values:
0: NotComplete: No transfer complete event
1: Complete: A transfer complete event has occured

HTIF[3]

Bit 10: Channel 3 Half Transfer Complete flag.

Allowed values:
0: NotHalf: No half transfer event
1: Half: A half transfer event has occured

TEIF[3]

Bit 11: Channel 3 Transfer Error flag.

Allowed values:
0: NoError: No transfer error
1: Error: A transfer error has occured

GIF[4]

Bit 12: Channel 4 Global interrupt flag.

Allowed values:
0: NoEvent: No transfer error, half event, complete event
1: Event: A transfer error, half event or complete event has occured

TCIF[4]

Bit 13: Channel 4 Transfer Complete flag.

Allowed values:
0: NotComplete: No transfer complete event
1: Complete: A transfer complete event has occured

HTIF[4]

Bit 14: Channel 4 Half Transfer Complete flag.

Allowed values:
0: NotHalf: No half transfer event
1: Half: A half transfer event has occured

TEIF[4]

Bit 15: Channel 4 Transfer Error flag.

Allowed values:
0: NoError: No transfer error
1: Error: A transfer error has occured

GIF[5]

Bit 16: Channel 5 Global interrupt flag.

Allowed values:
0: NoEvent: No transfer error, half event, complete event
1: Event: A transfer error, half event or complete event has occured

TCIF[5]

Bit 17: Channel 5 Transfer Complete flag.

Allowed values:
0: NotComplete: No transfer complete event
1: Complete: A transfer complete event has occured

HTIF[5]

Bit 18: Channel 5 Half Transfer Complete flag.

Allowed values:
0: NotHalf: No half transfer event
1: Half: A half transfer event has occured

TEIF[5]

Bit 19: Channel 5 Transfer Error flag.

Allowed values:
0: NoError: No transfer error
1: Error: A transfer error has occured

GIF[6]

Bit 20: Channel 6 Global interrupt flag.

Allowed values:
0: NoEvent: No transfer error, half event, complete event
1: Event: A transfer error, half event or complete event has occured

TCIF[6]

Bit 21: Channel 6 Transfer Complete flag.

Allowed values:
0: NotComplete: No transfer complete event
1: Complete: A transfer complete event has occured

HTIF[6]

Bit 22: Channel 6 Half Transfer Complete flag.

Allowed values:
0: NotHalf: No half transfer event
1: Half: A half transfer event has occured

TEIF[6]

Bit 23: Channel 6 Transfer Error flag.

Allowed values:
0: NoError: No transfer error
1: Error: A transfer error has occured

GIF[7]

Bit 24: Channel 7 Global interrupt flag.

Allowed values:
0: NoEvent: No transfer error, half event, complete event
1: Event: A transfer error, half event or complete event has occured

TCIF[7]

Bit 25: Channel 7 Transfer Complete flag.

Allowed values:
0: NotComplete: No transfer complete event
1: Complete: A transfer complete event has occured

HTIF[7]

Bit 26: Channel 7 Half Transfer Complete flag.

Allowed values:
0: NotHalf: No half transfer event
1: Half: A half transfer event has occured

TEIF[7]

Bit 27: Channel 7 Transfer Error flag.

Allowed values:
0: NoError: No transfer error
1: Error: A transfer error has occured

IFCR

interrupt flag clear register

Offset: 0x4, size: 32, reset: 0x00000000, access: write-only

28/28 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
				CTEIF[7] w	CHTIF[7] w	CTCIF[7] w	CGIF[7] w	CTEIF[6] w	CHTIF[6] w	CTCIF[6] w	CGIF[6] w	CTEIF[5] w	CHTIF[5] w	CTCIF[5] w	CGIF[5] w
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
CTEIF[4] w	CHTIF[4] w	CTCIF[4] w	CGIF[4] w	CTEIF[3] w	CHTIF[3] w	CTCIF[3] w	CGIF[3] w	CTEIF[2] w	CHTIF[2] w	CTCIF[2] w	CGIF[2] w	CTEIF[1] w	CHTIF[1] w	CTCIF[1] w	CGIF[1] w

Toggle fields

CGIF[1]

Bit 0: Channel 1 Global interrupt clear.

Allowed values:
1: Clear: Clears the GIF, TEIF, HTIF, TCIF flags in the ISR register

CTCIF[1]

Bit 1: Channel 1 Transfer Complete clear.

Allowed values:
1: Clear: Clears the TCIF flag in the ISR register

CHTIF[1]

Bit 2: Channel 1 Half Transfer clear.

Allowed values:
1: Clear: Clears the HTIF flag in the ISR register

CTEIF[1]

Bit 3: Channel 1 Transfer Error clear.

Allowed values:
1: Clear: Clears the TEIF flag in the ISR register

CGIF[2]

Bit 4: Channel 2 Global interrupt clear.

Allowed values:
1: Clear: Clears the GIF, TEIF, HTIF, TCIF flags in the ISR register

CTCIF[2]

Bit 5: Channel 2 Transfer Complete clear.

Allowed values:
1: Clear: Clears the TCIF flag in the ISR register

CHTIF[2]

Bit 6: Channel 2 Half Transfer clear.

Allowed values:
1: Clear: Clears the HTIF flag in the ISR register

CTEIF[2]

Bit 7: Channel 2 Transfer Error clear.

Allowed values:
1: Clear: Clears the TEIF flag in the ISR register

CGIF[3]

Bit 8: Channel 3 Global interrupt clear.

Allowed values:
1: Clear: Clears the GIF, TEIF, HTIF, TCIF flags in the ISR register

CTCIF[3]

Bit 9: Channel 3 Transfer Complete clear.

Allowed values:
1: Clear: Clears the TCIF flag in the ISR register

CHTIF[3]

Bit 10: Channel 3 Half Transfer clear.

Allowed values:
1: Clear: Clears the HTIF flag in the ISR register

CTEIF[3]

Bit 11: Channel 3 Transfer Error clear.

Allowed values:
1: Clear: Clears the TEIF flag in the ISR register

CGIF[4]

Bit 12: Channel 4 Global interrupt clear.

Allowed values:
1: Clear: Clears the GIF, TEIF, HTIF, TCIF flags in the ISR register

CTCIF[4]

Bit 13: Channel 4 Transfer Complete clear.

Allowed values:
1: Clear: Clears the TCIF flag in the ISR register

CHTIF[4]

Bit 14: Channel 4 Half Transfer clear.

Allowed values:
1: Clear: Clears the HTIF flag in the ISR register

CTEIF[4]

Bit 15: Channel 4 Transfer Error clear.

Allowed values:
1: Clear: Clears the TEIF flag in the ISR register

CGIF[5]

Bit 16: Channel 5 Global interrupt clear.

Allowed values:
1: Clear: Clears the GIF, TEIF, HTIF, TCIF flags in the ISR register

CTCIF[5]

Bit 17: Channel 5 Transfer Complete clear.

Allowed values:
1: Clear: Clears the TCIF flag in the ISR register

CHTIF[5]

Bit 18: Channel 5 Half Transfer clear.

Allowed values:
1: Clear: Clears the HTIF flag in the ISR register

CTEIF[5]

Bit 19: Channel 5 Transfer Error clear.

Allowed values:
1: Clear: Clears the TEIF flag in the ISR register

CGIF[6]

Bit 20: Channel 6 Global interrupt clear.

Allowed values:
1: Clear: Clears the GIF, TEIF, HTIF, TCIF flags in the ISR register

CTCIF[6]

Bit 21: Channel 6 Transfer Complete clear.

Allowed values:
1: Clear: Clears the TCIF flag in the ISR register

CHTIF[6]

Bit 22: Channel 6 Half Transfer clear.

Allowed values:
1: Clear: Clears the HTIF flag in the ISR register

CTEIF[6]

Bit 23: Channel 6 Transfer Error clear.

Allowed values:
1: Clear: Clears the TEIF flag in the ISR register

CGIF[7]

Bit 24: Channel 7 Global interrupt clear.

Allowed values:
1: Clear: Clears the GIF, TEIF, HTIF, TCIF flags in the ISR register

CTCIF[7]

Bit 25: Channel 7 Transfer Complete clear.

Allowed values:
1: Clear: Clears the TCIF flag in the ISR register

CHTIF[7]

Bit 26: Channel 7 Half Transfer clear.

Allowed values:
1: Clear: Clears the HTIF flag in the ISR register

CTEIF[7]

Bit 27: Channel 7 Transfer Error clear.

Allowed values:
1: Clear: Clears the TEIF flag in the ISR register

CR [1]

channel x configuration register

Offset: 0x8, size: 32, reset: 0x00000000, access: read-write

12/12 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
	MEM2MEM rw	PL rw		MSIZE rw		PSIZE rw		MINC rw	PINC rw	CIRC rw	DIR rw	TEIE rw	HTIE rw	TCIE rw	EN rw

Toggle fields

EN

Bit 0: Channel enable.

Allowed values:
0: Disabled: Channel disabled
1: Enabled: Channel enabled

TCIE

Bit 1: Transfer complete interrupt enable.

Allowed values:
0: Disabled: Transfer Complete interrupt disabled
1: Enabled: Transfer Complete interrupt enabled

HTIE

Bit 2: Half transfer interrupt enable.

Allowed values:
0: Disabled: Half Transfer interrupt disabled
1: Enabled: Half Transfer interrupt enabled

TEIE

Bit 3: Transfer error interrupt enable.

Allowed values:
0: Disabled: Transfer Error interrupt disabled
1: Enabled: Transfer Error interrupt enabled

DIR

Bit 4: Data transfer direction.

Allowed values:
0: FromPeripheral: Read from peripheral
1: FromMemory: Read from memory

CIRC

Bit 5: Circular mode.

Allowed values:
0: Disabled: Circular buffer disabled
1: Enabled: Circular buffer enabled

PINC

Bit 6: Peripheral increment mode.

Allowed values:
0: Disabled: Increment mode disabled
1: Enabled: Increment mode enabled

MINC

Bit 7: Memory increment mode.

Allowed values:
0: Disabled: Increment mode disabled
1: Enabled: Increment mode enabled

PSIZE

Bits 8-9: Peripheral size.

Allowed values:
0: Bits8: 8-bit size
1: Bits16: 16-bit size
2: Bits32: 32-bit size

MSIZE

Bits 10-11: Memory size.

Allowed values:
0: Bits8: 8-bit size
1: Bits16: 16-bit size
2: Bits32: 32-bit size

PL

Bits 12-13: Channel priority level.

Allowed values:
0: Low: Low priority
1: Medium: Medium priority
2: High: High priority
3: VeryHigh: Very high priority

MEM2MEM

Bit 14: Memory to memory mode.

Allowed values:
0: Disabled: Memory to memory mode disabled
1: Enabled: Memory to memory mode enabled

NDTR [1]

channel x number of data register

Offset: 0xc, size: 32, reset: 0x00000000, access: read-write

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
NDT rw

Toggle fields

NDT

Bits 0-15: Number of data to transfer.

Allowed values: 0x0-0xffff

PAR [1]

channel x peripheral address register

Offset: 0x10, size: 32, reset: 0x00000000, access: read-write

0/1 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
PA rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
PA rw

Toggle fields

PA

Bits 0-31: Peripheral address.

MAR [1]

channel x memory address register

Offset: 0x14, size: 32, reset: 0x00000000, access: read-write

0/1 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
MA rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
MA rw

Toggle fields

MA

Bits 0-31: Memory address.

CR [2]

channel x configuration register

Offset: 0x1c, size: 32, reset: 0x00000000, access: read-write

12/12 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
	MEM2MEM rw	PL rw		MSIZE rw		PSIZE rw		MINC rw	PINC rw	CIRC rw	DIR rw	TEIE rw	HTIE rw	TCIE rw	EN rw

Toggle fields

EN

Bit 0: Channel enable.

Allowed values:
0: Disabled: Channel disabled
1: Enabled: Channel enabled

TCIE

Bit 1: Transfer complete interrupt enable.

Allowed values:
0: Disabled: Transfer Complete interrupt disabled
1: Enabled: Transfer Complete interrupt enabled

HTIE

Bit 2: Half transfer interrupt enable.

Allowed values:
0: Disabled: Half Transfer interrupt disabled
1: Enabled: Half Transfer interrupt enabled

TEIE

Bit 3: Transfer error interrupt enable.

Allowed values:
0: Disabled: Transfer Error interrupt disabled
1: Enabled: Transfer Error interrupt enabled

DIR

Bit 4: Data transfer direction.

Allowed values:
0: FromPeripheral: Read from peripheral
1: FromMemory: Read from memory

CIRC

Bit 5: Circular mode.

Allowed values:
0: Disabled: Circular buffer disabled
1: Enabled: Circular buffer enabled

PINC

Bit 6: Peripheral increment mode.

Allowed values:
0: Disabled: Increment mode disabled
1: Enabled: Increment mode enabled

MINC

Bit 7: Memory increment mode.

Allowed values:
0: Disabled: Increment mode disabled
1: Enabled: Increment mode enabled

PSIZE

Bits 8-9: Peripheral size.

Allowed values:
0: Bits8: 8-bit size
1: Bits16: 16-bit size
2: Bits32: 32-bit size

MSIZE

Bits 10-11: Memory size.

Allowed values:
0: Bits8: 8-bit size
1: Bits16: 16-bit size
2: Bits32: 32-bit size

PL

Bits 12-13: Channel priority level.

Allowed values:
0: Low: Low priority
1: Medium: Medium priority
2: High: High priority
3: VeryHigh: Very high priority

MEM2MEM

Bit 14: Memory to memory mode.

Allowed values:
0: Disabled: Memory to memory mode disabled
1: Enabled: Memory to memory mode enabled

NDTR [2]

channel x number of data register

Offset: 0x20, size: 32, reset: 0x00000000, access: read-write

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
NDT rw

Toggle fields

NDT

Bits 0-15: Number of data to transfer.

Allowed values: 0x0-0xffff

PAR [2]

channel x peripheral address register

Offset: 0x24, size: 32, reset: 0x00000000, access: read-write

0/1 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
PA rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
PA rw

Toggle fields

PA

Bits 0-31: Peripheral address.

MAR [2]

channel x memory address register

Offset: 0x28, size: 32, reset: 0x00000000, access: read-write

0/1 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
MA rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
MA rw

Toggle fields

MA

Bits 0-31: Memory address.

CR [3]

channel x configuration register

Offset: 0x30, size: 32, reset: 0x00000000, access: read-write

12/12 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
	MEM2MEM rw	PL rw		MSIZE rw		PSIZE rw		MINC rw	PINC rw	CIRC rw	DIR rw	TEIE rw	HTIE rw	TCIE rw	EN rw

Toggle fields

EN

Bit 0: Channel enable.

Allowed values:
0: Disabled: Channel disabled
1: Enabled: Channel enabled

TCIE

Bit 1: Transfer complete interrupt enable.

Allowed values:
0: Disabled: Transfer Complete interrupt disabled
1: Enabled: Transfer Complete interrupt enabled

HTIE

Bit 2: Half transfer interrupt enable.

Allowed values:
0: Disabled: Half Transfer interrupt disabled
1: Enabled: Half Transfer interrupt enabled

TEIE

Bit 3: Transfer error interrupt enable.

Allowed values:
0: Disabled: Transfer Error interrupt disabled
1: Enabled: Transfer Error interrupt enabled

DIR

Bit 4: Data transfer direction.

Allowed values:
0: FromPeripheral: Read from peripheral
1: FromMemory: Read from memory

CIRC

Bit 5: Circular mode.

Allowed values:
0: Disabled: Circular buffer disabled
1: Enabled: Circular buffer enabled

PINC

Bit 6: Peripheral increment mode.

Allowed values:
0: Disabled: Increment mode disabled
1: Enabled: Increment mode enabled

MINC

Bit 7: Memory increment mode.

Allowed values:
0: Disabled: Increment mode disabled
1: Enabled: Increment mode enabled

PSIZE

Bits 8-9: Peripheral size.

Allowed values:
0: Bits8: 8-bit size
1: Bits16: 16-bit size
2: Bits32: 32-bit size

MSIZE

Bits 10-11: Memory size.

Allowed values:
0: Bits8: 8-bit size
1: Bits16: 16-bit size
2: Bits32: 32-bit size

PL

Bits 12-13: Channel priority level.

Allowed values:
0: Low: Low priority
1: Medium: Medium priority
2: High: High priority
3: VeryHigh: Very high priority

MEM2MEM

Bit 14: Memory to memory mode.

Allowed values:
0: Disabled: Memory to memory mode disabled
1: Enabled: Memory to memory mode enabled

NDTR [3]

channel x number of data register

Offset: 0x34, size: 32, reset: 0x00000000, access: read-write

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
NDT rw

Toggle fields

NDT

Bits 0-15: Number of data to transfer.

Allowed values: 0x0-0xffff

PAR [3]

channel x peripheral address register

Offset: 0x38, size: 32, reset: 0x00000000, access: read-write

0/1 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
PA rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
PA rw

Toggle fields

PA

Bits 0-31: Peripheral address.

MAR [3]

channel x memory address register

Offset: 0x3c, size: 32, reset: 0x00000000, access: read-write

0/1 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
MA rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
MA rw

Toggle fields

MA

Bits 0-31: Memory address.

CR [4]

channel x configuration register

Offset: 0x44, size: 32, reset: 0x00000000, access: read-write

12/12 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
	MEM2MEM rw	PL rw		MSIZE rw		PSIZE rw		MINC rw	PINC rw	CIRC rw	DIR rw	TEIE rw	HTIE rw	TCIE rw	EN rw

Toggle fields

EN

Bit 0: Channel enable.

Allowed values:
0: Disabled: Channel disabled
1: Enabled: Channel enabled

TCIE

Bit 1: Transfer complete interrupt enable.

Allowed values:
0: Disabled: Transfer Complete interrupt disabled
1: Enabled: Transfer Complete interrupt enabled

HTIE

Bit 2: Half transfer interrupt enable.

Allowed values:
0: Disabled: Half Transfer interrupt disabled
1: Enabled: Half Transfer interrupt enabled

TEIE

Bit 3: Transfer error interrupt enable.

Allowed values:
0: Disabled: Transfer Error interrupt disabled
1: Enabled: Transfer Error interrupt enabled

DIR

Bit 4: Data transfer direction.

Allowed values:
0: FromPeripheral: Read from peripheral
1: FromMemory: Read from memory

CIRC

Bit 5: Circular mode.

Allowed values:
0: Disabled: Circular buffer disabled
1: Enabled: Circular buffer enabled

PINC

Bit 6: Peripheral increment mode.

Allowed values:
0: Disabled: Increment mode disabled
1: Enabled: Increment mode enabled

MINC

Bit 7: Memory increment mode.

Allowed values:
0: Disabled: Increment mode disabled
1: Enabled: Increment mode enabled

PSIZE

Bits 8-9: Peripheral size.

Allowed values:
0: Bits8: 8-bit size
1: Bits16: 16-bit size
2: Bits32: 32-bit size

MSIZE

Bits 10-11: Memory size.

Allowed values:
0: Bits8: 8-bit size
1: Bits16: 16-bit size
2: Bits32: 32-bit size

PL

Bits 12-13: Channel priority level.

Allowed values:
0: Low: Low priority
1: Medium: Medium priority
2: High: High priority
3: VeryHigh: Very high priority

MEM2MEM

Bit 14: Memory to memory mode.

Allowed values:
0: Disabled: Memory to memory mode disabled
1: Enabled: Memory to memory mode enabled

NDTR [4]

channel x number of data register

Offset: 0x48, size: 32, reset: 0x00000000, access: read-write

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
NDT rw

Toggle fields

NDT

Bits 0-15: Number of data to transfer.

Allowed values: 0x0-0xffff

PAR [4]

channel x peripheral address register

Offset: 0x4c, size: 32, reset: 0x00000000, access: read-write

0/1 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
PA rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
PA rw

Toggle fields

PA

Bits 0-31: Peripheral address.

MAR [4]

channel x memory address register

Offset: 0x50, size: 32, reset: 0x00000000, access: read-write

0/1 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
MA rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
MA rw

Toggle fields

MA

Bits 0-31: Memory address.

CR [5]

channel x configuration register

Offset: 0x58, size: 32, reset: 0x00000000, access: read-write

12/12 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
	MEM2MEM rw	PL rw		MSIZE rw		PSIZE rw		MINC rw	PINC rw	CIRC rw	DIR rw	TEIE rw	HTIE rw	TCIE rw	EN rw

Toggle fields

EN

Bit 0: Channel enable.

Allowed values:
0: Disabled: Channel disabled
1: Enabled: Channel enabled

TCIE

Bit 1: Transfer complete interrupt enable.

Allowed values:
0: Disabled: Transfer Complete interrupt disabled
1: Enabled: Transfer Complete interrupt enabled

HTIE

Bit 2: Half transfer interrupt enable.

Allowed values:
0: Disabled: Half Transfer interrupt disabled
1: Enabled: Half Transfer interrupt enabled

TEIE

Bit 3: Transfer error interrupt enable.

Allowed values:
0: Disabled: Transfer Error interrupt disabled
1: Enabled: Transfer Error interrupt enabled

DIR

Bit 4: Data transfer direction.

Allowed values:
0: FromPeripheral: Read from peripheral
1: FromMemory: Read from memory

CIRC

Bit 5: Circular mode.

Allowed values:
0: Disabled: Circular buffer disabled
1: Enabled: Circular buffer enabled

PINC

Bit 6: Peripheral increment mode.

Allowed values:
0: Disabled: Increment mode disabled
1: Enabled: Increment mode enabled

MINC

Bit 7: Memory increment mode.

Allowed values:
0: Disabled: Increment mode disabled
1: Enabled: Increment mode enabled

PSIZE

Bits 8-9: Peripheral size.

Allowed values:
0: Bits8: 8-bit size
1: Bits16: 16-bit size
2: Bits32: 32-bit size

MSIZE

Bits 10-11: Memory size.

Allowed values:
0: Bits8: 8-bit size
1: Bits16: 16-bit size
2: Bits32: 32-bit size

PL

Bits 12-13: Channel priority level.

Allowed values:
0: Low: Low priority
1: Medium: Medium priority
2: High: High priority
3: VeryHigh: Very high priority

MEM2MEM

Bit 14: Memory to memory mode.

Allowed values:
0: Disabled: Memory to memory mode disabled
1: Enabled: Memory to memory mode enabled

NDTR [5]

channel x number of data register

Offset: 0x5c, size: 32, reset: 0x00000000, access: read-write

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
NDT rw

Toggle fields

NDT

Bits 0-15: Number of data to transfer.

Allowed values: 0x0-0xffff

PAR [5]

channel x peripheral address register

Offset: 0x60, size: 32, reset: 0x00000000, access: read-write

0/1 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
PA rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
PA rw

Toggle fields

PA

Bits 0-31: Peripheral address.

MAR [5]

channel x memory address register

Offset: 0x64, size: 32, reset: 0x00000000, access: read-write

0/1 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
MA rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
MA rw

Toggle fields

MA

Bits 0-31: Memory address.

CR [6]

channel x configuration register

Offset: 0x6c, size: 32, reset: 0x00000000, access: read-write

12/12 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
	MEM2MEM rw	PL rw		MSIZE rw		PSIZE rw		MINC rw	PINC rw	CIRC rw	DIR rw	TEIE rw	HTIE rw	TCIE rw	EN rw

Toggle fields

EN

Bit 0: Channel enable.

Allowed values:
0: Disabled: Channel disabled
1: Enabled: Channel enabled

TCIE

Bit 1: Transfer complete interrupt enable.

Allowed values:
0: Disabled: Transfer Complete interrupt disabled
1: Enabled: Transfer Complete interrupt enabled

HTIE

Bit 2: Half transfer interrupt enable.

Allowed values:
0: Disabled: Half Transfer interrupt disabled
1: Enabled: Half Transfer interrupt enabled

TEIE

Bit 3: Transfer error interrupt enable.

Allowed values:
0: Disabled: Transfer Error interrupt disabled
1: Enabled: Transfer Error interrupt enabled

DIR

Bit 4: Data transfer direction.

Allowed values:
0: FromPeripheral: Read from peripheral
1: FromMemory: Read from memory

CIRC

Bit 5: Circular mode.

Allowed values:
0: Disabled: Circular buffer disabled
1: Enabled: Circular buffer enabled

PINC

Bit 6: Peripheral increment mode.

Allowed values:
0: Disabled: Increment mode disabled
1: Enabled: Increment mode enabled

MINC

Bit 7: Memory increment mode.

Allowed values:
0: Disabled: Increment mode disabled
1: Enabled: Increment mode enabled

PSIZE

Bits 8-9: Peripheral size.

Allowed values:
0: Bits8: 8-bit size
1: Bits16: 16-bit size
2: Bits32: 32-bit size

MSIZE

Bits 10-11: Memory size.

Allowed values:
0: Bits8: 8-bit size
1: Bits16: 16-bit size
2: Bits32: 32-bit size

PL

Bits 12-13: Channel priority level.

Allowed values:
0: Low: Low priority
1: Medium: Medium priority
2: High: High priority
3: VeryHigh: Very high priority

MEM2MEM

Bit 14: Memory to memory mode.

Allowed values:
0: Disabled: Memory to memory mode disabled
1: Enabled: Memory to memory mode enabled

NDTR [6]

channel x number of data register

Offset: 0x70, size: 32, reset: 0x00000000, access: read-write

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
NDT rw

Toggle fields

NDT

Bits 0-15: Number of data to transfer.

Allowed values: 0x0-0xffff

PAR [6]

channel x peripheral address register

Offset: 0x74, size: 32, reset: 0x00000000, access: read-write

0/1 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
PA rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
PA rw

Toggle fields

PA

Bits 0-31: Peripheral address.

MAR [6]

channel x memory address register

Offset: 0x78, size: 32, reset: 0x00000000, access: read-write

0/1 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
MA rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
MA rw

Toggle fields

MA

Bits 0-31: Memory address.

CR [7]

channel x configuration register

Offset: 0x80, size: 32, reset: 0x00000000, access: read-write

12/12 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
	MEM2MEM rw	PL rw		MSIZE rw		PSIZE rw		MINC rw	PINC rw	CIRC rw	DIR rw	TEIE rw	HTIE rw	TCIE rw	EN rw

Toggle fields

EN

Bit 0: Channel enable.

Allowed values:
0: Disabled: Channel disabled
1: Enabled: Channel enabled

TCIE

Bit 1: Transfer complete interrupt enable.

Allowed values:
0: Disabled: Transfer Complete interrupt disabled
1: Enabled: Transfer Complete interrupt enabled

HTIE

Bit 2: Half transfer interrupt enable.

Allowed values:
0: Disabled: Half Transfer interrupt disabled
1: Enabled: Half Transfer interrupt enabled

TEIE

Bit 3: Transfer error interrupt enable.

Allowed values:
0: Disabled: Transfer Error interrupt disabled
1: Enabled: Transfer Error interrupt enabled

DIR

Bit 4: Data transfer direction.

Allowed values:
0: FromPeripheral: Read from peripheral
1: FromMemory: Read from memory

CIRC

Bit 5: Circular mode.

Allowed values:
0: Disabled: Circular buffer disabled
1: Enabled: Circular buffer enabled

PINC

Bit 6: Peripheral increment mode.

Allowed values:
0: Disabled: Increment mode disabled
1: Enabled: Increment mode enabled

MINC

Bit 7: Memory increment mode.

Allowed values:
0: Disabled: Increment mode disabled
1: Enabled: Increment mode enabled

PSIZE

Bits 8-9: Peripheral size.

Allowed values:
0: Bits8: 8-bit size
1: Bits16: 16-bit size
2: Bits32: 32-bit size

MSIZE

Bits 10-11: Memory size.

Allowed values:
0: Bits8: 8-bit size
1: Bits16: 16-bit size
2: Bits32: 32-bit size

PL

Bits 12-13: Channel priority level.

Allowed values:
0: Low: Low priority
1: Medium: Medium priority
2: High: High priority
3: VeryHigh: Very high priority

MEM2MEM

Bit 14: Memory to memory mode.

Allowed values:
0: Disabled: Memory to memory mode disabled
1: Enabled: Memory to memory mode enabled

NDTR [7]

channel x number of data register

Offset: 0x84, size: 32, reset: 0x00000000, access: read-write

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
NDT rw

Toggle fields

NDT

Bits 0-15: Number of data to transfer.

Allowed values: 0x0-0xffff

PAR [7]

channel x peripheral address register

Offset: 0x88, size: 32, reset: 0x00000000, access: read-write

0/1 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
PA rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
PA rw

Toggle fields

PA

Bits 0-31: Peripheral address.

MAR [7]

channel x memory address register

Offset: 0x8c, size: 32, reset: 0x00000000, access: read-write

0/1 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
MA rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
MA rw

Toggle fields

MA

Bits 0-31: Memory address.

CSELR

channel selection register

Offset: 0xa8, size: 32, reset: 0x00000000, access: read-write

7/7 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
				C7S rw				C6S rw				C5S rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
C4S rw				C3S rw				C2S rw				C1S rw

Toggle fields

C1S

Bits 0-3: DMA channel 1 selection.

Allowed values:
0: NoMapping: Default mapping
1: Map1: Mapping 1
2: Map2: Mapping 2
3: Map3: Mapping 3
4: Map4: Mapping 4
5: Map5: Mapping 5
6: Map6: Mapping 6
7: Map7: Mapping 7
8: Map8: Mapping 8
9: Map9: Mapping 9
10: Map10: Mapping 10
11: Map11: Mapping 11
12: Map12: Mapping 12
13: Map13: Mapping 13
14: Map14: Mapping 14
15: Map15: Mapping 15

C2S

Bits 4-7: DMA channel 2 selection.

Allowed values:
0: NoMapping: Default mapping
1: Map1: Mapping 1
2: Map2: Mapping 2
3: Map3: Mapping 3
4: Map4: Mapping 4
5: Map5: Mapping 5
6: Map6: Mapping 6
7: Map7: Mapping 7
8: Map8: Mapping 8
9: Map9: Mapping 9
10: Map10: Mapping 10
11: Map11: Mapping 11
12: Map12: Mapping 12
13: Map13: Mapping 13
14: Map14: Mapping 14
15: Map15: Mapping 15

C3S

Bits 8-11: DMA channel 3 selection.

Allowed values:
0: NoMapping: Default mapping
1: Map1: Mapping 1
2: Map2: Mapping 2
3: Map3: Mapping 3
4: Map4: Mapping 4
5: Map5: Mapping 5
6: Map6: Mapping 6
7: Map7: Mapping 7
8: Map8: Mapping 8
9: Map9: Mapping 9
10: Map10: Mapping 10
11: Map11: Mapping 11
12: Map12: Mapping 12
13: Map13: Mapping 13
14: Map14: Mapping 14
15: Map15: Mapping 15

C4S

Bits 12-15: DMA channel 4 selection.

Allowed values:
0: NoMapping: Default mapping
1: Map1: Mapping 1
2: Map2: Mapping 2
3: Map3: Mapping 3
4: Map4: Mapping 4
5: Map5: Mapping 5
6: Map6: Mapping 6
7: Map7: Mapping 7
8: Map8: Mapping 8
9: Map9: Mapping 9
10: Map10: Mapping 10
11: Map11: Mapping 11
12: Map12: Mapping 12
13: Map13: Mapping 13
14: Map14: Mapping 14
15: Map15: Mapping 15

C5S

Bits 16-19: DMA channel 5 selection.

Allowed values:
0: NoMapping: Default mapping
1: Map1: Mapping 1
2: Map2: Mapping 2
3: Map3: Mapping 3
4: Map4: Mapping 4
5: Map5: Mapping 5
6: Map6: Mapping 6
7: Map7: Mapping 7
8: Map8: Mapping 8
9: Map9: Mapping 9
10: Map10: Mapping 10
11: Map11: Mapping 11
12: Map12: Mapping 12
13: Map13: Mapping 13
14: Map14: Mapping 14
15: Map15: Mapping 15

C6S

Bits 20-23: DMA channel 6 selection.

Allowed values:
0: NoMapping: Default mapping
1: Map1: Mapping 1
2: Map2: Mapping 2
3: Map3: Mapping 3
4: Map4: Mapping 4
5: Map5: Mapping 5
6: Map6: Mapping 6
7: Map7: Mapping 7
8: Map8: Mapping 8
9: Map9: Mapping 9
10: Map10: Mapping 10
11: Map11: Mapping 11
12: Map12: Mapping 12
13: Map13: Mapping 13
14: Map14: Mapping 14
15: Map15: Mapping 15

C7S

Bits 24-27: DMA channel 7 selection.

Allowed values:
0: NoMapping: Default mapping
1: Map1: Mapping 1
2: Map2: Mapping 2
3: Map3: Mapping 3
4: Map4: Mapping 4
5: Map5: Mapping 5
6: Map6: Mapping 6
7: Map7: Mapping 7
8: Map8: Mapping 8
9: Map9: Mapping 9
10: Map10: Mapping 10
11: Map11: Mapping 11
12: Map12: Mapping 12
13: Map13: Mapping 13
14: Map14: Mapping 14
15: Map15: Mapping 15

EXTI

0x40010400: External interrupt/event controller

146/146 fields covered.

Toggle register map

Offset	Name	29	28	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
0x0	IMR	IM29	IM28	IM26	IM25	IM24	IM23	IM22	IM21	IM20	IM19	IM18	IM17	IM16	IM15	IM14	IM13	IM12	IM11	IM10	IM9	IM8	IM7	IM6	IM5	IM4	IM3	IM2	IM1	IM0
0x4	EMR	EM29	EM28	EM26	EM25	EM24	EM23	EM22	EM21	EM20	EM19	EM18	EM17	EM16	EM15	EM14	EM13	EM12	EM11	EM10	EM9	EM8	EM7	EM6	EM5	EM4	EM3	EM2	EM1	EM0
0x8	RTSR							RT22	RT21	RT20	RT19		RT17	RT16	RT15	RT14	RT13	RT12	RT11	RT10	RT9	RT8	RT7	RT6	RT5	RT4	RT3	RT2	RT1	RT0
0xc	FTSR							FT22	FT21	FT20	FT19		FT17	FT16	FT15	FT14	FT13	FT12	FT11	FT10	FT9	FT8	FT7	FT6	FT5	FT4	FT3	FT2	FT1	FT0
0x10	SWIER							SWI22	SWI21	SWI20	SWI19		SWI17	SWI16	SWI15	SWI14	SWI13	SWI12	SWI11	SWI10	SWI9	SWI8	SWI7	SWI6	SWI5	SWI4	SWI3	SWI2	SWI1	SWI0
0x14	PR							PIF22	PIF21	PIF20	PIF19		PIF17	PIF16	PIF15	PIF14	PIF13	PIF12	PIF11	PIF10	PIF9	PIF8	PIF7	PIF6	PIF5	PIF4	PIF3	PIF2	PIF1	PIF0

Toggle registers

IMR

Interrupt mask register (EXTI_IMR)

Offset: 0x0, size: 32, reset: 0xFF840000, access: read-write

29/29 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
		IM29 rw	IM28 rw		IM26 rw	IM25 rw	IM24 rw	IM23 rw	IM22 rw	IM21 rw	IM20 rw	IM19 rw	IM18 rw	IM17 rw	IM16 rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
IM15 rw	IM14 rw	IM13 rw	IM12 rw	IM11 rw	IM10 rw	IM9 rw	IM8 rw	IM7 rw	IM6 rw	IM5 rw	IM4 rw	IM3 rw	IM2 rw	IM1 rw	IM0 rw

Toggle fields

IM0

Bit 0: Interrupt Mask on line 0.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

IM1

Bit 1: Interrupt Mask on line 1.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

IM2

Bit 2: Interrupt Mask on line 2.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

IM3

Bit 3: Interrupt Mask on line 3.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

IM4

Bit 4: Interrupt Mask on line 4.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

IM5

Bit 5: Interrupt Mask on line 5.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

IM6

Bit 6: Interrupt Mask on line 6.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

IM7

Bit 7: Interrupt Mask on line 7.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

IM8

Bit 8: Interrupt Mask on line 8.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

IM9

Bit 9: Interrupt Mask on line 9.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

IM10

Bit 10: Interrupt Mask on line 10.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

IM11

Bit 11: Interrupt Mask on line 11.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

IM12

Bit 12: Interrupt Mask on line 12.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

IM13

Bit 13: Interrupt Mask on line 13.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

IM14

Bit 14: Interrupt Mask on line 14.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

IM15

Bit 15: Interrupt Mask on line 15.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

IM16

Bit 16: Interrupt Mask on line 16.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

IM17

Bit 17: Interrupt Mask on line 17.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

IM18

Bit 18: Interrupt Mask on line 18.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

IM19

Bit 19: Interrupt Mask on line 19.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

IM20

Bit 20: Interrupt Mask on line 20.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

IM21

Bit 21: Interrupt Mask on line 21.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

IM22

Bit 22: Interrupt Mask on line 22.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

IM23

Bit 23: Interrupt Mask on line 23.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

IM24

Bit 24: Interrupt Mask on line 24.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

IM25

Bit 25: Interrupt Mask on line 25.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

IM26

Bit 26: Interrupt Mask on line 27.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

IM28

Bit 28: Interrupt Mask on line 27.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

IM29

Bit 29: Interrupt Mask on line 27.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

EMR

Event mask register (EXTI_EMR)

Offset: 0x4, size: 32, reset: 0x00000000, access: read-write

29/29 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
		EM29 rw	EM28 rw		EM26 rw	EM25 rw	EM24 rw	EM23 rw	EM22 rw	EM21 rw	EM20 rw	EM19 rw	EM18 rw	EM17 rw	EM16 rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
EM15 rw	EM14 rw	EM13 rw	EM12 rw	EM11 rw	EM10 rw	EM9 rw	EM8 rw	EM7 rw	EM6 rw	EM5 rw	EM4 rw	EM3 rw	EM2 rw	EM1 rw	EM0 rw

Toggle fields

EM0

Bit 0: Event Mask on line 0.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

EM1

Bit 1: Event Mask on line 1.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

EM2

Bit 2: Event Mask on line 2.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

EM3

Bit 3: Event Mask on line 3.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

EM4

Bit 4: Event Mask on line 4.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

EM5

Bit 5: Event Mask on line 5.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

EM6

Bit 6: Event Mask on line 6.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

EM7

Bit 7: Event Mask on line 7.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

EM8

Bit 8: Event Mask on line 8.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

EM9

Bit 9: Event Mask on line 9.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

EM10

Bit 10: Event Mask on line 10.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

EM11

Bit 11: Event Mask on line 11.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

EM12

Bit 12: Event Mask on line 12.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

EM13

Bit 13: Event Mask on line 13.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

EM14

Bit 14: Event Mask on line 14.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

EM15

Bit 15: Event Mask on line 15.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

EM16

Bit 16: Event Mask on line 16.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

EM17

Bit 17: Event Mask on line 17.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

EM18

Bit 18: Event Mask on line 18.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

EM19

Bit 19: Event Mask on line 19.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

EM20

Bit 20: Event Mask on line 20.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

EM21

Bit 21: Event Mask on line 21.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

EM22

Bit 22: Event Mask on line 22.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

EM23

Bit 23: Event Mask on line 23.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

EM24

Bit 24: Event Mask on line 24.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

EM25

Bit 25: Event Mask on line 25.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

EM26

Bit 26: Event Mask on line 26.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

EM28

Bit 28: Event Mask on line 28.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

EM29

Bit 29: Event Mask on line 29.

Allowed values:
0: Masked: Interrupt request line is masked
1: Unmasked: Interrupt request line is unmasked

RTSR

Rising Trigger selection register (EXTI_RTSR)

Offset: 0x8, size: 32, reset: 0x00000000, access: read-write

22/22 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
									RT22 rw	RT21 rw	RT20 rw	RT19 rw		RT17 rw	RT16 rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
RT15 rw	RT14 rw	RT13 rw	RT12 rw	RT11 rw	RT10 rw	RT9 rw	RT8 rw	RT7 rw	RT6 rw	RT5 rw	RT4 rw	RT3 rw	RT2 rw	RT1 rw	RT0 rw

Toggle fields

RT0

Bit 0: Rising trigger event configuration of line 0.

Allowed values:
0: Disabled: Rising edge trigger is disabled
1: Enabled: Rising edge trigger is enabled

RT1

Bit 1: Rising trigger event configuration of line 1.

Allowed values:
0: Disabled: Rising edge trigger is disabled
1: Enabled: Rising edge trigger is enabled

RT2

Bit 2: Rising trigger event configuration of line 2.

Allowed values:
0: Disabled: Rising edge trigger is disabled
1: Enabled: Rising edge trigger is enabled

RT3

Bit 3: Rising trigger event configuration of line 3.

Allowed values:
0: Disabled: Rising edge trigger is disabled
1: Enabled: Rising edge trigger is enabled

RT4

Bit 4: Rising trigger event configuration of line 4.

Allowed values:
0: Disabled: Rising edge trigger is disabled
1: Enabled: Rising edge trigger is enabled

RT5

Bit 5: Rising trigger event configuration of line 5.

Allowed values:
0: Disabled: Rising edge trigger is disabled
1: Enabled: Rising edge trigger is enabled

RT6

Bit 6: Rising trigger event configuration of line 6.

Allowed values:
0: Disabled: Rising edge trigger is disabled
1: Enabled: Rising edge trigger is enabled

RT7

Bit 7: Rising trigger event configuration of line 7.

Allowed values:
0: Disabled: Rising edge trigger is disabled
1: Enabled: Rising edge trigger is enabled

RT8

Bit 8: Rising trigger event configuration of line 8.

Allowed values:
0: Disabled: Rising edge trigger is disabled
1: Enabled: Rising edge trigger is enabled

RT9

Bit 9: Rising trigger event configuration of line 9.

Allowed values:
0: Disabled: Rising edge trigger is disabled
1: Enabled: Rising edge trigger is enabled

RT10

Bit 10: Rising trigger event configuration of line 10.

Allowed values:
0: Disabled: Rising edge trigger is disabled
1: Enabled: Rising edge trigger is enabled

RT11

Bit 11: Rising trigger event configuration of line 11.

Allowed values:
0: Disabled: Rising edge trigger is disabled
1: Enabled: Rising edge trigger is enabled

RT12

Bit 12: Rising trigger event configuration of line 12.

Allowed values:
0: Disabled: Rising edge trigger is disabled
1: Enabled: Rising edge trigger is enabled

RT13

Bit 13: Rising trigger event configuration of line 13.

Allowed values:
0: Disabled: Rising edge trigger is disabled
1: Enabled: Rising edge trigger is enabled

RT14

Bit 14: Rising trigger event configuration of line 14.

Allowed values:
0: Disabled: Rising edge trigger is disabled
1: Enabled: Rising edge trigger is enabled

RT15

Bit 15: Rising trigger event configuration of line 15.

Allowed values:
0: Disabled: Rising edge trigger is disabled
1: Enabled: Rising edge trigger is enabled

RT16

Bit 16: Rising trigger event configuration of line 16.

Allowed values:
0: Disabled: Rising edge trigger is disabled
1: Enabled: Rising edge trigger is enabled

RT17

Bit 17: Rising trigger event configuration of line 17.

Allowed values:
0: Disabled: Rising edge trigger is disabled
1: Enabled: Rising edge trigger is enabled

RT19

Bit 19: Rising trigger event configuration of line 19.

Allowed values:
0: Disabled: Rising edge trigger is disabled
1: Enabled: Rising edge trigger is enabled

RT20

Bit 20: Rising trigger event configuration of line 20.

Allowed values:
0: Disabled: Rising edge trigger is disabled
1: Enabled: Rising edge trigger is enabled

RT21

Bit 21: Rising trigger event configuration of line 21.

Allowed values:
0: Disabled: Rising edge trigger is disabled
1: Enabled: Rising edge trigger is enabled

RT22

Bit 22: Rising trigger event configuration of line 22.

Allowed values:
0: Disabled: Rising edge trigger is disabled
1: Enabled: Rising edge trigger is enabled

FTSR

Falling Trigger selection register (EXTI_FTSR)

Offset: 0xc, size: 32, reset: 0x00000000, access: read-write

22/22 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
									FT22 rw	FT21 rw	FT20 rw	FT19 rw		FT17 rw	FT16 rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
FT15 rw	FT14 rw	FT13 rw	FT12 rw	FT11 rw	FT10 rw	FT9 rw	FT8 rw	FT7 rw	FT6 rw	FT5 rw	FT4 rw	FT3 rw	FT2 rw	FT1 rw	FT0 rw

Toggle fields

FT0

Bit 0: Falling trigger event configuration of line 0.

Allowed values:
0: Disabled: Falling edge trigger is disabled
1: Enabled: Falling edge trigger is enabled

FT1

Bit 1: Falling trigger event configuration of line 1.

Allowed values:
0: Disabled: Falling edge trigger is disabled
1: Enabled: Falling edge trigger is enabled

FT2

Bit 2: Falling trigger event configuration of line 2.

Allowed values:
0: Disabled: Falling edge trigger is disabled
1: Enabled: Falling edge trigger is enabled

FT3

Bit 3: Falling trigger event configuration of line 3.

Allowed values:
0: Disabled: Falling edge trigger is disabled
1: Enabled: Falling edge trigger is enabled

FT4

Bit 4: Falling trigger event configuration of line 4.

Allowed values:
0: Disabled: Falling edge trigger is disabled
1: Enabled: Falling edge trigger is enabled

FT5

Bit 5: Falling trigger event configuration of line 5.

Allowed values:
0: Disabled: Falling edge trigger is disabled
1: Enabled: Falling edge trigger is enabled

FT6

Bit 6: Falling trigger event configuration of line 6.

Allowed values:
0: Disabled: Falling edge trigger is disabled
1: Enabled: Falling edge trigger is enabled

FT7

Bit 7: Falling trigger event configuration of line 7.

Allowed values:
0: Disabled: Falling edge trigger is disabled
1: Enabled: Falling edge trigger is enabled

FT8

Bit 8: Falling trigger event configuration of line 8.

Allowed values:
0: Disabled: Falling edge trigger is disabled
1: Enabled: Falling edge trigger is enabled

FT9

Bit 9: Falling trigger event configuration of line 9.

Allowed values:
0: Disabled: Falling edge trigger is disabled
1: Enabled: Falling edge trigger is enabled

FT10

Bit 10: Falling trigger event configuration of line 10.

Allowed values:
0: Disabled: Falling edge trigger is disabled
1: Enabled: Falling edge trigger is enabled

FT11

Bit 11: Falling trigger event configuration of line 11.

Allowed values:
0: Disabled: Falling edge trigger is disabled
1: Enabled: Falling edge trigger is enabled

FT12

Bit 12: Falling trigger event configuration of line 12.

Allowed values:
0: Disabled: Falling edge trigger is disabled
1: Enabled: Falling edge trigger is enabled

FT13

Bit 13: Falling trigger event configuration of line 13.

Allowed values:
0: Disabled: Falling edge trigger is disabled
1: Enabled: Falling edge trigger is enabled

FT14

Bit 14: Falling trigger event configuration of line 14.

Allowed values:
0: Disabled: Falling edge trigger is disabled
1: Enabled: Falling edge trigger is enabled

FT15

Bit 15: Falling trigger event configuration of line 15.

Allowed values:
0: Disabled: Falling edge trigger is disabled
1: Enabled: Falling edge trigger is enabled

FT16

Bit 16: Falling trigger event configuration of line 16.

Allowed values:
0: Disabled: Falling edge trigger is disabled
1: Enabled: Falling edge trigger is enabled

FT17

Bit 17: Falling trigger event configuration of line 17.

Allowed values:
0: Disabled: Falling edge trigger is disabled
1: Enabled: Falling edge trigger is enabled

FT19

Bit 19: Falling trigger event configuration of line 19.

Allowed values:
0: Disabled: Falling edge trigger is disabled
1: Enabled: Falling edge trigger is enabled

FT20

Bit 20: Falling trigger event configuration of line 20.

Allowed values:
0: Disabled: Falling edge trigger is disabled
1: Enabled: Falling edge trigger is enabled

FT21

Bit 21: Falling trigger event configuration of line 21.

Allowed values:
0: Disabled: Falling edge trigger is disabled
1: Enabled: Falling edge trigger is enabled

FT22

Bit 22: Falling trigger event configuration of line 22.

Allowed values:
0: Disabled: Falling edge trigger is disabled
1: Enabled: Falling edge trigger is enabled

SWIER

Software interrupt event register (EXTI_SWIER)

Offset: 0x10, size: 32, reset: 0x00000000, access: read-write

22/22 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
									SWI22 rw	SWI21 rw	SWI20 rw	SWI19 rw		SWI17 rw	SWI16 rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
SWI15 rw	SWI14 rw	SWI13 rw	SWI12 rw	SWI11 rw	SWI10 rw	SWI9 rw	SWI8 rw	SWI7 rw	SWI6 rw	SWI5 rw	SWI4 rw	SWI3 rw	SWI2 rw	SWI1 rw	SWI0 rw

Toggle fields

SWI0

Bit 0: Software Interrupt on line 0.

Allowed values:
1: Pend: Generates an interrupt request

SWI1

Bit 1: Software Interrupt on line 1.

Allowed values:
1: Pend: Generates an interrupt request

SWI2

Bit 2: Software Interrupt on line 2.

Allowed values:
1: Pend: Generates an interrupt request

SWI3

Bit 3: Software Interrupt on line 3.

Allowed values:
1: Pend: Generates an interrupt request

SWI4

Bit 4: Software Interrupt on line 4.

Allowed values:
1: Pend: Generates an interrupt request

SWI5

Bit 5: Software Interrupt on line 5.

Allowed values:
1: Pend: Generates an interrupt request

SWI6

Bit 6: Software Interrupt on line 6.

Allowed values:
1: Pend: Generates an interrupt request

SWI7

Bit 7: Software Interrupt on line 7.

Allowed values:
1: Pend: Generates an interrupt request

SWI8

Bit 8: Software Interrupt on line 8.

Allowed values:
1: Pend: Generates an interrupt request

SWI9

Bit 9: Software Interrupt on line 9.

Allowed values:
1: Pend: Generates an interrupt request

SWI10

Bit 10: Software Interrupt on line 10.

Allowed values:
1: Pend: Generates an interrupt request

SWI11

Bit 11: Software Interrupt on line 11.

Allowed values:
1: Pend: Generates an interrupt request

SWI12

Bit 12: Software Interrupt on line 12.

Allowed values:
1: Pend: Generates an interrupt request

SWI13

Bit 13: Software Interrupt on line 13.

Allowed values:
1: Pend: Generates an interrupt request

SWI14

Bit 14: Software Interrupt on line 14.

Allowed values:
1: Pend: Generates an interrupt request

SWI15

Bit 15: Software Interrupt on line 15.

Allowed values:
1: Pend: Generates an interrupt request

SWI16

Bit 16: Software Interrupt on line 16.

Allowed values:
1: Pend: Generates an interrupt request

SWI17

Bit 17: Software Interrupt on line 17.

Allowed values:
1: Pend: Generates an interrupt request

SWI19

Bit 19: Software Interrupt on line 19.

Allowed values:
1: Pend: Generates an interrupt request

SWI20

Bit 20: Software Interrupt on line 20.

Allowed values:
1: Pend: Generates an interrupt request

SWI21

Bit 21: Software Interrupt on line 21.

Allowed values:
1: Pend: Generates an interrupt request

SWI22

Bit 22: Software Interrupt on line 22.

Allowed values:
1: Pend: Generates an interrupt request

PR

Pending register (EXTI_PR)

Offset: 0x14, size: 32, reset: 0x00000000, access: read-write

22/22 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
									PIF22 rw	PIF21 rw	PIF20 rw	PIF19 rw		PIF17 rw	PIF16 rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
PIF15 rw	PIF14 rw	PIF13 rw	PIF12 rw	PIF11 rw	PIF10 rw	PIF9 rw	PIF8 rw	PIF7 rw	PIF6 rw	PIF5 rw	PIF4 rw	PIF3 rw	PIF2 rw	PIF1 rw	PIF0 rw

Toggle fields

PIF0

Bit 0: Pending bit 0.

Allowed values:
0: NotPending: No trigger request occurred
1: Pending: Selected trigger request occurred

PIF1

Bit 1: Pending bit 1.

Allowed values:
0: NotPending: No trigger request occurred
1: Pending: Selected trigger request occurred

PIF2

Bit 2: Pending bit 2.

Allowed values:
0: NotPending: No trigger request occurred
1: Pending: Selected trigger request occurred

PIF3

Bit 3: Pending bit 3.

Allowed values:
0: NotPending: No trigger request occurred
1: Pending: Selected trigger request occurred

PIF4

Bit 4: Pending bit 4.

Allowed values:
0: NotPending: No trigger request occurred
1: Pending: Selected trigger request occurred

PIF5

Bit 5: Pending bit 5.

Allowed values:
0: NotPending: No trigger request occurred
1: Pending: Selected trigger request occurred

PIF6

Bit 6: Pending bit 6.

Allowed values:
0: NotPending: No trigger request occurred
1: Pending: Selected trigger request occurred

PIF7

Bit 7: Pending bit 7.

Allowed values:
0: NotPending: No trigger request occurred
1: Pending: Selected trigger request occurred

PIF8

Bit 8: Pending bit 8.

Allowed values:
0: NotPending: No trigger request occurred
1: Pending: Selected trigger request occurred

PIF9

Bit 9: Pending bit 9.

Allowed values:
0: NotPending: No trigger request occurred
1: Pending: Selected trigger request occurred

PIF10

Bit 10: Pending bit 10.

Allowed values:
0: NotPending: No trigger request occurred
1: Pending: Selected trigger request occurred

PIF11

Bit 11: Pending bit 11.

Allowed values:
0: NotPending: No trigger request occurred
1: Pending: Selected trigger request occurred

PIF12

Bit 12: Pending bit 12.

Allowed values:
0: NotPending: No trigger request occurred
1: Pending: Selected trigger request occurred

PIF13

Bit 13: Pending bit 13.

Allowed values:
0: NotPending: No trigger request occurred
1: Pending: Selected trigger request occurred

PIF14

Bit 14: Pending bit 14.

Allowed values:
0: NotPending: No trigger request occurred
1: Pending: Selected trigger request occurred

PIF15

Bit 15: Pending bit 15.

Allowed values:
0: NotPending: No trigger request occurred
1: Pending: Selected trigger request occurred

PIF16

Bit 16: Pending bit 16.

Allowed values:
0: NotPending: No trigger request occurred
1: Pending: Selected trigger request occurred

PIF17

Bit 17: Pending bit 17.

Allowed values:
0: NotPending: No trigger request occurred
1: Pending: Selected trigger request occurred

PIF19

Bit 19: Pending bit 19.

Allowed values:
0: NotPending: No trigger request occurred
1: Pending: Selected trigger request occurred

PIF20

Bit 20: Pending bit 20.

Allowed values:
0: NotPending: No trigger request occurred
1: Pending: Selected trigger request occurred

PIF21

Bit 21: Pending bit 21.

Allowed values:
0: NotPending: No trigger request occurred
1: Pending: Selected trigger request occurred

PIF22

Bit 22: Pending bit 22.

Allowed values:
0: NotPending: No trigger request occurred
1: Pending: Selected trigger request occurred

FLASH

0x40022000: Flash

43/44 fields covered.

Toggle register map

Offset	Name	31	23	22	21	20	19	18	17	16	15	13	11	10	9	8	7	6	5	4	3	2	1	0
0x0	ACR																	PRE_READ	DISAB_BUF	RUN_PD	SLEEP_PD		PRFTEN	LATENCY
0x4	PECR		NZDISABLE					OBL_LAUNCH	ERRIE	EOPIE	PARALLELBANK			FPRG	ERASE	FIX				DATA	PROG	OPTLOCK	PRGLOCK	PELOCK
0x8	PDKEYR	PDKEYR									PDKEYR
0xc	PEKEYR	PEKEYR									PEKEYR
0x10	PRGKEYR	PRGKEYR									PRGKEYR
0x14	OPTKEYR	OPTKEYR									OPTKEYR
0x18	SR								FWWERR	NOTZEROERR		RDERR	OPTVERR	SIZERR	PGAERR	WRPERR					READY	ENDHV	EOP	BSY
0x1c	OPTR	nBOOT1	BFB2	nRST_STDBY	nRST_STOP	WDG_SW	BOR_LEV									WPRMOD	RDPROT
0x20	WRPROT1	WRPROT1									WRPROT1
0x80	WRPROT2										WRPROT2

Toggle registers

ACR

Access control register

Offset: 0x0, size: 32, reset: 0x00000000, access: read-write

6/6 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
									PRE_READ rw	DISAB_BUF rw	RUN_PD rw	SLEEP_PD rw		PRFTEN rw	LATENCY rw

Toggle fields

LATENCY

Bit 0: Latency.

Allowed values:
0: WS0: Zero wait state is used to read a word in the NVM
1: WS1: One wait state is used to read a word in the NVM

PRFTEN

Bit 1: Prefetch enable.

Allowed values:
0: Disabled: Prefetch is disabled
1: Enabled: Prefetch is enabled

SLEEP_PD

Bit 3: Flash mode during Sleep.

Allowed values:
0: NVMIdleMode: When the device is in Sleep mode, the NVM is in Idle mode
1: NVMPwrDownMode: When the device is in Sleep mode, the NVM is in power-down mode

RUN_PD

Bit 4: Flash mode during Run.

Allowed values:
0: NVMIdleMode: When the device is in Run mode, the NVM is in Idle mode
1: NVMPwrDownMode: When the device is in Run mode, the NVM is in power-down mode

DISAB_BUF

Bit 5: Disable Buffer.

Allowed values:
0: Enabled: The buffers are enabled
1: Disabled: The buffers are disabled

PRE_READ

Bit 6: Pre-read data address.

Allowed values:
0: Disabled: The pre-read is disabled
1: Enabled: The pre-read is enabled

PECR

Program/erase control register

Offset: 0x4, size: 32, reset: 0x00000007, access: read-write

12/13 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
								NZDISABLE rw					OBL_LAUNCH rw	ERRIE rw	EOPIE rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
PARALLELBANK rw					FPRG rw	ERASE rw	FIX rw				DATA rw	PROG rw	OPTLOCK rw	PRGLOCK rw	PELOCK rw

Toggle fields

PELOCK

Bit 0: FLASH_PECR and data EEPROM lock.

Allowed values:
0: Unlocked: The FLASH_PECR register is unlocked
1: Locked: The FLASH_PECR register is locked and no write/erase operation can start

PRGLOCK

Bit 1: Program memory lock.

Allowed values:
0: Unlocked: The write and erase operations in the Flash program memory are disabled
1: Locked: The write and erase operations in the Flash program memory are enabled

OPTLOCK

Bit 2: Option bytes block lock.

Allowed values:
0: Unlocked: The write and erase operations in the Option bytes area are disabled
1: Locked: The write and erase operations in the Option bytes area are enabled

PROG

Bit 3: Program memory selection.

Allowed values:
0: NotSelected: The Flash program memory is not selected
1: Selected: The Flash program memory is selected

DATA

Bit 4: Data EEPROM selection.

Allowed values:
0: NotSelected: Data EEPROM not selected
1: Selected: Data memory selected

FIX

Bit 8: Fixed time data write for Byte, Half Word and Word programming.

Allowed values:
0: AutoErase: An erase phase is automatically performed
1: PrelimErase: The program operation is always performed with a preliminary erase

ERASE

Bit 9: Page or Double Word erase mode.

Allowed values:
0: NoErase: No erase operation requested
1: Erase: Erase operation requested

FPRG

Bit 10: Half Page/Double Word programming mode.

Allowed values:
0: Disabled: Half Page programming disabled
1: Enabled: Half Page programming enabled

PARALLELBANK

Bit 15: Parallel bank mode.

Allowed values:
0: Disabled: Parallel bank mode disabled
1: Enabled: Parallel bank mode enabled

EOPIE

Bit 16: End of programming interrupt enable.

Allowed values:
0: Disabled: End of program interrupt disable
1: Enabled: End of program interrupt enable

ERRIE

Bit 17: Error interrupt enable.

Allowed values:
0: Disabled: Error interrupt disable
1: Enabled: Error interrupt enable

OBL_LAUNCH

Bit 18: Launch the option byte loading.

Allowed values:
0: Complete: Option byte loaded
1: NotComplete: Option byte loading to be done

NZDISABLE

Bit 23: Non-Zero check notification disable.

PDKEYR

Power down key register

Offset: 0x8, size: 32, reset: 0x00000000, access: write-only

1/1 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
PDKEYR w
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
PDKEYR w

Toggle fields

PDKEYR

Bits 0-31: RUN_PD in FLASH_ACR key.

Allowed values: 0x0-0xffffffff

PEKEYR

Program/erase key register

Offset: 0xc, size: 32, reset: 0x00000000, access: write-only

1/1 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
PEKEYR w
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
PEKEYR w

Toggle fields

PEKEYR

Bits 0-31: FLASH_PEC and data EEPROM key.

Allowed values: 0x0-0xffffffff

PRGKEYR

Program memory key register

Offset: 0x10, size: 32, reset: 0x00000000, access: write-only

1/1 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
PRGKEYR w
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
PRGKEYR w

Toggle fields

PRGKEYR

Bits 0-31: Program memory key.

Allowed values: 0x0-0xffffffff

OPTKEYR

Option byte key register

Offset: 0x14, size: 32, reset: 0x00000000, access: write-only

1/1 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
OPTKEYR w
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
OPTKEYR w

Toggle fields

OPTKEYR

Bits 0-31: Option byte key.

Allowed values: 0x0-0xffffffff

SR

Status register

Offset: 0x18, size: 32, reset: 0x00000004, access: Unspecified

11/11 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
														FWWERR rw	NOTZEROERR rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
		RDERR rw		OPTVERR rw	SIZERR rw	PGAERR rw	WRPERR rw					READY r	ENDHV r	EOP r	BSY r

Toggle fields

BSY

Bit 0: Write/erase operations in progress.

Allowed values:
0: Inactive: No write/erase operation is in progress
1: Active: No write/erase operation is in progress

EOP

Bit 1: End of operation.

Allowed values:
0: NoEvent: No EOP operation occurred
1: Event: An EOP event occurred

ENDHV

Bit 2: End of high voltage.

Allowed values:
0: Active: High voltage is executing a write/erase operation in the NVM
1: Inactive: High voltage is off, no write/erase operation is ongoing

READY

Bit 3: Flash memory module ready after low power mode.

Allowed values:
0: NotReady: The NVM is not ready
1: Ready: The NVM is ready

WRPERR

Bit 8: Write protected error.

Allowed values:
0: NoError: No protection error happened
1: Error: One protection error happened

PGAERR

Bit 9: Programming alignment error.

Allowed values:
0: NoError: No alignment error happened
1: Error: One alignment error happened

SIZERR

Bit 10: Size error.

Allowed values:
0: NoError: No size error happened
1: Error: One size error happened

OPTVERR

Bit 11: Option validity error.

Allowed values:
0: NoError: No error happened during the Option bytes loading
1: Error: One or more errors happened during the Option bytes loading

RDERR

Bit 13: RDERR.

Allowed values:
0: NoError: No read protection error happened.
1: Error: One read protection error happened

NOTZEROERR

Bit 16: NOTZEROERR.

Allowed values:
0: NoEvent: The write operation is done in an erased region or the memory interface can apply an erase before a write
1: Event: The write operation is attempting to write to a not-erased region and the memory interface cannot apply an erase before a write

FWWERR

Bit 17: FWWERR.

Allowed values:
0: NoError: No write/erase operation aborted to perform a fetch
1: Error: A write/erase operation aborted to perform a fetch

OPTR

Option byte register

Offset: 0x1c, size: 32, reset: 0x00F80000, access: read-only

8/8 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
nBOOT1 r								BFB2 r	nRST_STDBY r	nRST_STOP r	WDG_SW r	BOR_LEV r
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
							WPRMOD r	RDPROT r

Toggle fields

RDPROT

Bits 0-7: Read protection.

Allowed values:
0: Level1: Level 1
170: Level0: Level 0
204: Level2: Level 2

WPRMOD

Bit 8: WPRMOD.

Allowed values:
0: Disabled: PCROP disabled. The WRPROT bits are used as a write protection on a sector.
1: Enabled: PCROP enabled. The WRPROT bits are used as a read protection on a sector.

BOR_LEV

Bits 16-19: BOR_LEV.

Allowed values:
0: BOR_Off: This is the reset threshold level for the 1.45 V - 1.55 V voltage range (power-down only)
1: BOR_Level1: Reset threshold level for VBOR0 (around 1.8 V)
2: BOR_Level2: Reset threshold level for VBOR1 (around 2.0 V)
3: BOR_Level3: Reset threshold level for VBOR2 (around 2.5 V)
4: BOR_Level4: Reset threshold level for VBOR3 (around 2.7 V)
5: BOR_Level5: Reset threshold level for VBOR4 (around 3.0 V)

WDG_SW

Bit 20: WDG_SW.

nRST_STOP

Bit 21: nRST_STOP.

nRST_STDBY

Bit 22: nRST_STDBY.

BFB2

Bit 23: BFB2.

nBOOT1

Bit 31: nBOOT1.

WRPROT1

Write protection register

Offset: 0x20, size: 32, reset: 0x00000000, access: read-only

1/1 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
WRPROT1 r
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
WRPROT1 r

Toggle fields

WRPROT1

Bits 0-31: Write protection.

Allowed values: 0x0-0xffffffff

WRPROT2

Write protection register

Offset: 0x80, size: 32, reset: 0x00000000, access: read-only

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
WRPROT2 r

Toggle fields

WRPROT2

Bits 0-15: Write protection.

Allowed values: 0x0-0xffff

FW

0x40011c00: Firewall

9/9 fields covered.

Toggle register map

Offset	Name	23	21	15	2	1	0
0x0	CSSA	ADD		ADD
0x4	CSL		LENG	LENG
0x8	NVDSSA	ADD		ADD
0xc	NVDSL		LENG	LENG
0x10	VDSSA			ADD
0x14	VDSL			LENG
0x20	CR				VDE	VDS	FPA

Toggle registers

CSSA

Code segment start address

Offset: 0x0, size: 32, reset: 0x00000000, access: read-write

1/1 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
								ADD rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
ADD rw

Toggle fields

ADD

Bits 8-23: code segment start address.

Allowed values: 0x0-0xffff

CSL

Code segment length

Offset: 0x4, size: 32, reset: 0x00000000, access: read-write

1/1 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
										LENG rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
LENG rw

Toggle fields

LENG

Bits 8-21: code segment length.

Allowed values: 0x0-0x3fff

NVDSSA

Non-volatile data segment start address

Offset: 0x8, size: 32, reset: 0x00000000, access: read-write

1/1 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
								ADD rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
ADD rw

Toggle fields

ADD

Bits 8-23: Non-volatile data segment start address.

Allowed values: 0x0-0xffff

NVDSL

Non-volatile data segment length

Offset: 0xc, size: 32, reset: 0x00000000, access: read-write

1/1 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
										LENG rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
LENG rw

Toggle fields

LENG

Bits 8-21: Non-volatile data segment length.

Allowed values: 0x0-0x3fff

VDSSA

Volatile data segment start address

Offset: 0x10, size: 32, reset: 0x00000000, access: read-write

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
ADD rw

Toggle fields

ADD

Bits 6-15: Volatile data segment start address.

Allowed values: 0x0-0x3ff

VDSL

Volatile data segment length

Offset: 0x14, size: 32, reset: 0x00000000, access: read-write

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
LENG rw

Toggle fields

LENG

Bits 6-15: Non-volatile data segment length.

Allowed values: 0x0-0x3ff

CR

Configuration register

Offset: 0x20, size: 32, reset: 0x00000000, access: read-write

3/3 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
													VDE rw	VDS rw	FPA rw

Toggle fields

FPA

Bit 0: Firewall pre alarm.

Allowed values:
0: PreArmReset: Any code executed outside the protected segment when the Firewall is opened will generate a system reset
1: PreArmSet: Any code executed outside the protected segment will close the Firewall

VDS

Bit 1: Volatile data shared.

Allowed values:
0: NotShared: Volatile data segment is not shared and cannot be hit by a non protected executable code when the Firewall is closed
1: Shared: Volatile data segment is shared with non protected application code

VDE

Bit 2: Volatile data execution.

Allowed values:
0: NotExecutable: Volatile data segment cannot be executed if VDS = 0
1: Executable: Volatile data segment is declared executable whatever VDS bit value

GPIOA

0x50000000: General-purpose I/Os

177/177 fields covered.

Toggle register map

Offset	Name	31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
0x0	MODER	MODE[15]		MODE[14]		MODE[13]		MODE[12]		MODE[11]		MODE[10]		MODE[9]		MODE[8]		MODE[7]		MODE[6]		MODE[5]		MODE[4]		MODE[3]		MODE[2]		MODE[1]		MODE[0]
0x4	OTYPER																	OT[15]	OT[14]	OT[13]	OT[12]	OT[11]	OT[10]	OT[9]	OT[8]	OT[7]	OT[6]	OT[5]	OT[4]	OT[3]	OT[2]	OT[1]	OT[0]
0x8	OSPEEDR	OSPEED[15]		OSPEED[14]		OSPEED[13]		OSPEED[12]		OSPEED[11]		OSPEED[10]		OSPEED[9]		OSPEED[8]		OSPEED[7]		OSPEED[6]		OSPEED[5]		OSPEED[4]		OSPEED[3]		OSPEED[2]		OSPEED[1]		OSPEED[0]
0xc	PUPDR	PUPD[15]		PUPD[14]		PUPD[13]		PUPD[12]		PUPD[11]		PUPD[10]		PUPD[9]		PUPD[8]		PUPD[7]		PUPD[6]		PUPD[5]		PUPD[4]		PUPD[3]		PUPD[2]		PUPD[1]		PUPD[0]
0x10	IDR																	ID[15]	ID[14]	ID[13]	ID[12]	ID[11]	ID[10]	ID[9]	ID[8]	ID[7]	ID[6]	ID[5]	ID[4]	ID[3]	ID[2]	ID[1]	ID[0]
0x14	ODR																	OD[15]	OD[14]	OD[13]	OD[12]	OD[11]	OD[10]	OD[9]	OD[8]	OD[7]	OD[6]	OD[5]	OD[4]	OD[3]	OD[2]	OD[1]	OD[0]
0x18	BSRR	BR[15]	BR[14]	BR[13]	BR[12]	BR[11]	BR[10]	BR[9]	BR[8]	BR[7]	BR[6]	BR[5]	BR[4]	BR[3]	BR[2]	BR[1]	BR[0]	BS[15]	BS[14]	BS[13]	BS[12]	BS[11]	BS[10]	BS[9]	BS[8]	BS[7]	BS[6]	BS[5]	BS[4]	BS[3]	BS[2]	BS[1]	BS[0]
0x1c	LCKR																LCKK	LCK[15]	LCK[14]	LCK[13]	LCK[12]	LCK[11]	LCK[10]	LCK[9]	LCK[8]	LCK[7]	LCK[6]	LCK[5]	LCK[4]	LCK[3]	LCK[2]	LCK[1]	LCK[0]
0x20	AFRL	AFR[EL7]				AFR[EL6]				AFR[EL5]				AFR[EL4]				AFR[EL3]				AFR[EL2]				AFR[EL1]				AFR[EL0]
0x24	AFRH	AFR[EL15]				AFR[EL14]				AFR[EL13]				AFR[EL12]				AFR[EL11]				AFR[EL10]				AFR[EL9]				AFR[EL8]
0x28	BRR																	BR[15]	BR[14]	BR[13]	BR[12]	BR[11]	BR[10]	BR[9]	BR[8]	BR[7]	BR[6]	BR[5]	BR[4]	BR[3]	BR[2]	BR[1]	BR[0]

Toggle registers

MODER

GPIO port mode register

Offset: 0x0, size: 32, reset: 0xEBFFFCFF, access: read-write

16/16 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
MODE[15] rw		MODE[14] rw		MODE[13] rw		MODE[12] rw		MODE[11] rw		MODE[10] rw		MODE[9] rw		MODE[8] rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
MODE[7] rw		MODE[6] rw		MODE[5] rw		MODE[4] rw		MODE[3] rw		MODE[2] rw		MODE[1] rw		MODE[0] rw

Toggle fields

MODE[0]

Bits 0-1: Port x configuration pin 0.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[1]

Bits 2-3: Port x configuration pin 1.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[2]

Bits 4-5: Port x configuration pin 2.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[3]

Bits 6-7: Port x configuration pin 3.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[4]

Bits 8-9: Port x configuration pin 4.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[5]

Bits 10-11: Port x configuration pin 5.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[6]

Bits 12-13: Port x configuration pin 6.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[7]

Bits 14-15: Port x configuration pin 7.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[8]

Bits 16-17: Port x configuration pin 8.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[9]

Bits 18-19: Port x configuration pin 9.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[10]

Bits 20-21: Port x configuration pin 10.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[11]

Bits 22-23: Port x configuration pin 11.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[12]

Bits 24-25: Port x configuration pin 12.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[13]

Bits 26-27: Port x configuration pin 13.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[14]

Bits 28-29: Port x configuration pin 14.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[15]

Bits 30-31: Port x configuration pin 15.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

OTYPER

GPIO port output type register

Offset: 0x4, size: 32, reset: 0x00000000, access: read-write

16/16 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
OT[15] rw	OT[14] rw	OT[13] rw	OT[12] rw	OT[11] rw	OT[10] rw	OT[9] rw	OT[8] rw	OT[7] rw	OT[6] rw	OT[5] rw	OT[4] rw	OT[3] rw	OT[2] rw	OT[1] rw	OT[0] rw

Toggle fields

OT[0]

Bit 0: Port x configuration pin 0.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[1]

Bit 1: Port x configuration pin 1.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[2]

Bit 2: Port x configuration pin 2.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[3]

Bit 3: Port x configuration pin 3.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[4]

Bit 4: Port x configuration pin 4.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[5]

Bit 5: Port x configuration pin 5.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[6]

Bit 6: Port x configuration pin 6.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[7]

Bit 7: Port x configuration pin 7.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[8]

Bit 8: Port x configuration pin 8.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[9]

Bit 9: Port x configuration pin 9.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[10]

Bit 10: Port x configuration pin 10.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[11]

Bit 11: Port x configuration pin 11.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[12]

Bit 12: Port x configuration pin 12.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[13]

Bit 13: Port x configuration pin 13.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[14]

Bit 14: Port x configuration pin 14.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[15]

Bit 15: Port x configuration pin 15.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OSPEEDR

GPIO port output speed register

Offset: 0x8, size: 32, reset: 0x00000000, access: read-write

16/16 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
OSPEED[15] rw		OSPEED[14] rw		OSPEED[13] rw		OSPEED[12] rw		OSPEED[11] rw		OSPEED[10] rw		OSPEED[9] rw		OSPEED[8] rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
OSPEED[7] rw		OSPEED[6] rw		OSPEED[5] rw		OSPEED[4] rw		OSPEED[3] rw		OSPEED[2] rw		OSPEED[1] rw		OSPEED[0] rw

Toggle fields

OSPEED[0]

Bits 0-1: Port x configuration pin 0.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[1]

Bits 2-3: Port x configuration pin 1.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[2]

Bits 4-5: Port x configuration pin 2.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[3]

Bits 6-7: Port x configuration pin 3.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[4]

Bits 8-9: Port x configuration pin 4.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[5]

Bits 10-11: Port x configuration pin 5.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[6]

Bits 12-13: Port x configuration pin 6.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[7]

Bits 14-15: Port x configuration pin 7.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[8]

Bits 16-17: Port x configuration pin 8.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[9]

Bits 18-19: Port x configuration pin 9.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[10]

Bits 20-21: Port x configuration pin 10.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[11]

Bits 22-23: Port x configuration pin 11.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[12]

Bits 24-25: Port x configuration pin 12.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[13]

Bits 26-27: Port x configuration pin 13.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[14]

Bits 28-29: Port x configuration pin 14.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[15]

Bits 30-31: Port x configuration pin 15.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

PUPDR

GPIO port pull-up/pull-down register

Offset: 0xc, size: 32, reset: 0x24000000, access: read-write

16/16 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
PUPD[15] rw		PUPD[14] rw		PUPD[13] rw		PUPD[12] rw		PUPD[11] rw		PUPD[10] rw		PUPD[9] rw		PUPD[8] rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
PUPD[7] rw		PUPD[6] rw		PUPD[5] rw		PUPD[4] rw		PUPD[3] rw		PUPD[2] rw		PUPD[1] rw		PUPD[0] rw

Toggle fields

PUPD[0]

Bits 0-1: Port x configuration pin 0.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[1]

Bits 2-3: Port x configuration pin 1.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[2]

Bits 4-5: Port x configuration pin 2.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[3]

Bits 6-7: Port x configuration pin 3.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[4]

Bits 8-9: Port x configuration pin 4.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[5]

Bits 10-11: Port x configuration pin 5.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[6]

Bits 12-13: Port x configuration pin 6.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[7]

Bits 14-15: Port x configuration pin 7.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[8]

Bits 16-17: Port x configuration pin 8.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[9]

Bits 18-19: Port x configuration pin 9.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[10]

Bits 20-21: Port x configuration pin 10.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[11]

Bits 22-23: Port x configuration pin 11.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[12]

Bits 24-25: Port x configuration pin 12.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[13]

Bits 26-27: Port x configuration pin 13.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[14]

Bits 28-29: Port x configuration pin 14.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[15]

Bits 30-31: Port x configuration pin 15.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

IDR

GPIO port input data register

Offset: 0x10, size: 32, reset: 0x00000000, access: read-only

16/16 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
ID[15] r	ID[14] r	ID[13] r	ID[12] r	ID[11] r	ID[10] r	ID[9] r	ID[8] r	ID[7] r	ID[6] r	ID[5] r	ID[4] r	ID[3] r	ID[2] r	ID[1] r	ID[0] r

Toggle fields

ID[0]

Bit 0: Port input data pin 0.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[1]

Bit 1: Port input data pin 1.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[2]

Bit 2: Port input data pin 2.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[3]

Bit 3: Port input data pin 3.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[4]

Bit 4: Port input data pin 4.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[5]

Bit 5: Port input data pin 5.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[6]

Bit 6: Port input data pin 6.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[7]

Bit 7: Port input data pin 7.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[8]

Bit 8: Port input data pin 8.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[9]

Bit 9: Port input data pin 9.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[10]

Bit 10: Port input data pin 10.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[11]

Bit 11: Port input data pin 11.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[12]

Bit 12: Port input data pin 12.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[13]

Bit 13: Port input data pin 13.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[14]

Bit 14: Port input data pin 14.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[15]

Bit 15: Port input data pin 15.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ODR

GPIO port output data register

Offset: 0x14, size: 32, reset: 0x00000000, access: read-write

16/16 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
OD[15] rw	OD[14] rw	OD[13] rw	OD[12] rw	OD[11] rw	OD[10] rw	OD[9] rw	OD[8] rw	OD[7] rw	OD[6] rw	OD[5] rw	OD[4] rw	OD[3] rw	OD[2] rw	OD[1] rw	OD[0] rw

Toggle fields

OD[0]

Bit 0: Port output data pin 0.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[1]

Bit 1: Port output data pin 1.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[2]

Bit 2: Port output data pin 2.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[3]

Bit 3: Port output data pin 3.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[4]

Bit 4: Port output data pin 4.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[5]

Bit 5: Port output data pin 5.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[6]

Bit 6: Port output data pin 6.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[7]

Bit 7: Port output data pin 7.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[8]

Bit 8: Port output data pin 8.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[9]

Bit 9: Port output data pin 9.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[10]

Bit 10: Port output data pin 10.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[11]

Bit 11: Port output data pin 11.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[12]

Bit 12: Port output data pin 12.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[13]

Bit 13: Port output data pin 13.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[14]

Bit 14: Port output data pin 14.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[15]

Bit 15: Port output data pin 15.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

BSRR

GPIO port bit set/reset register

Offset: 0x18, size: 32, reset: 0x00000000, access: write-only

32/32 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
BR[15] w	BR[14] w	BR[13] w	BR[12] w	BR[11] w	BR[10] w	BR[9] w	BR[8] w	BR[7] w	BR[6] w	BR[5] w	BR[4] w	BR[3] w	BR[2] w	BR[1] w	BR[0] w
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
BS[15] w	BS[14] w	BS[13] w	BS[12] w	BS[11] w	BS[10] w	BS[9] w	BS[8] w	BS[7] w	BS[6] w	BS[5] w	BS[4] w	BS[3] w	BS[2] w	BS[1] w	BS[0] w

Toggle fields

BS[0]

Bit 0: Port x set pin 0.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[1]

Bit 1: Port x set pin 1.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[2]

Bit 2: Port x set pin 2.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[3]

Bit 3: Port x set pin 3.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[4]

Bit 4: Port x set pin 4.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[5]

Bit 5: Port x set pin 5.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[6]

Bit 6: Port x set pin 6.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[7]

Bit 7: Port x set pin 7.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[8]

Bit 8: Port x set pin 8.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[9]

Bit 9: Port x set pin 9.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[10]

Bit 10: Port x set pin 10.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[11]

Bit 11: Port x set pin 11.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[12]

Bit 12: Port x set pin 12.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[13]

Bit 13: Port x set pin 13.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[14]

Bit 14: Port x set pin 14.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[15]

Bit 15: Port x set pin 15.

Allowed values:
1: Set: Sets the corresponding ODx bit

BR[0]

Bit 16: Port x reset pin 0.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[1]

Bit 17: Port x reset pin 1.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[2]

Bit 18: Port x reset pin 2.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[3]

Bit 19: Port x reset pin 3.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[4]

Bit 20: Port x reset pin 4.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[5]

Bit 21: Port x reset pin 5.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[6]

Bit 22: Port x reset pin 6.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[7]

Bit 23: Port x reset pin 7.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[8]

Bit 24: Port x reset pin 8.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[9]

Bit 25: Port x reset pin 9.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[10]

Bit 26: Port x reset pin 10.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[11]

Bit 27: Port x reset pin 11.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[12]

Bit 28: Port x reset pin 12.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[13]

Bit 29: Port x reset pin 13.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[14]

Bit 30: Port x reset pin 14.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[15]

Bit 31: Port x reset pin 15.

Allowed values:
1: Reset: Resets the corresponding ODx bit

LCKR

GPIO port configuration lock register

Offset: 0x1c, size: 32, reset: 0x00000000, access: read-write

17/17 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
															LCKK rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
LCK[15] rw	LCK[14] rw	LCK[13] rw	LCK[12] rw	LCK[11] rw	LCK[10] rw	LCK[9] rw	LCK[8] rw	LCK[7] rw	LCK[6] rw	LCK[5] rw	LCK[4] rw	LCK[3] rw	LCK[2] rw	LCK[1] rw	LCK[0] rw

Toggle fields

LCK[0]

Bit 0: Port x lock pin 0.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[1]

Bit 1: Port x lock pin 1.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[2]

Bit 2: Port x lock pin 2.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[3]

Bit 3: Port x lock pin 3.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[4]

Bit 4: Port x lock pin 4.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[5]

Bit 5: Port x lock pin 5.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[6]

Bit 6: Port x lock pin 6.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[7]

Bit 7: Port x lock pin 7.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[8]

Bit 8: Port x lock pin 8.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[9]

Bit 9: Port x lock pin 9.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[10]

Bit 10: Port x lock pin 10.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[11]

Bit 11: Port x lock pin 11.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[12]

Bit 12: Port x lock pin 12.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[13]

Bit 13: Port x lock pin 13.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[14]

Bit 14: Port x lock pin 14.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[15]

Bit 15: Port x lock pin 15.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCKK

Bit 16: Port x lock bit y (y= 0..15).

Allowed values:
0: NotActive: Port configuration lock key not active
1: Active: Port configuration lock key active

AFRL

GPIO alternate function low register

Offset: 0x20, size: 32, reset: 0x00000000, access: read-write

8/8 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
AFR[EL7] rw				AFR[EL6] rw				AFR[EL5] rw				AFR[EL4] rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
AFR[EL3] rw				AFR[EL2] rw				AFR[EL1] rw				AFR[EL0] rw

Toggle fields

AFR[EL0]

Bits 0-3: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL1]

Bits 4-7: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL2]

Bits 8-11: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL3]

Bits 12-15: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL4]

Bits 16-19: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL5]

Bits 20-23: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL6]

Bits 24-27: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL7]

Bits 28-31: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFRH

GPIO alternate function high register

Offset: 0x24, size: 32, reset: 0x00000000, access: read-write

8/8 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
AFR[EL15] rw				AFR[EL14] rw				AFR[EL13] rw				AFR[EL12] rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
AFR[EL11] rw				AFR[EL10] rw				AFR[EL9] rw				AFR[EL8] rw

Toggle fields

AFR[EL8]

Bits 0-3: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL9]

Bits 4-7: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL10]

Bits 8-11: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL11]

Bits 12-15: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL12]

Bits 16-19: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL13]

Bits 20-23: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL14]

Bits 24-27: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL15]

Bits 28-31: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

BRR

GPIO port bit reset register

Offset: 0x28, size: 32, reset: 0x00000000, access: write-only

16/16 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
BR[15] w	BR[14] w	BR[13] w	BR[12] w	BR[11] w	BR[10] w	BR[9] w	BR[8] w	BR[7] w	BR[6] w	BR[5] w	BR[4] w	BR[3] w	BR[2] w	BR[1] w	BR[0] w

Toggle fields

BR[0]

Bit 0: Port x reset pin 0.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[1]

Bit 1: Port x reset pin 1.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[2]

Bit 2: Port x reset pin 2.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[3]

Bit 3: Port x reset pin 3.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[4]

Bit 4: Port x reset pin 4.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[5]

Bit 5: Port x reset pin 5.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[6]

Bit 6: Port x reset pin 6.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[7]

Bit 7: Port x reset pin 7.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[8]

Bit 8: Port x reset pin 8.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[9]

Bit 9: Port x reset pin 9.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[10]

Bit 10: Port x reset pin 10.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[11]

Bit 11: Port x reset pin 11.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[12]

Bit 12: Port x reset pin 12.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[13]

Bit 13: Port x reset pin 13.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[14]

Bit 14: Port x reset pin 14.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[15]

Bit 15: Port x reset pin 15.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

GPIOB

0x50000400: General-purpose I/Os

177/177 fields covered.

Toggle register map

Offset	Name	31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
0x0	MODER	MODE[15]		MODE[14]		MODE[13]		MODE[12]		MODE[11]		MODE[10]		MODE[9]		MODE[8]		MODE[7]		MODE[6]		MODE[5]		MODE[4]		MODE[3]		MODE[2]		MODE[1]		MODE[0]
0x4	OTYPER																	OT[15]	OT[14]	OT[13]	OT[12]	OT[11]	OT[10]	OT[9]	OT[8]	OT[7]	OT[6]	OT[5]	OT[4]	OT[3]	OT[2]	OT[1]	OT[0]
0x8	OSPEEDR	OSPEED[15]		OSPEED[14]		OSPEED[13]		OSPEED[12]		OSPEED[11]		OSPEED[10]		OSPEED[9]		OSPEED[8]		OSPEED[7]		OSPEED[6]		OSPEED[5]		OSPEED[4]		OSPEED[3]		OSPEED[2]		OSPEED[1]		OSPEED[0]
0xc	PUPDR	PUPD[15]		PUPD[14]		PUPD[13]		PUPD[12]		PUPD[11]		PUPD[10]		PUPD[9]		PUPD[8]		PUPD[7]		PUPD[6]		PUPD[5]		PUPD[4]		PUPD[3]		PUPD[2]		PUPD[1]		PUPD[0]
0x10	IDR																	ID[15]	ID[14]	ID[13]	ID[12]	ID[11]	ID[10]	ID[9]	ID[8]	ID[7]	ID[6]	ID[5]	ID[4]	ID[3]	ID[2]	ID[1]	ID[0]
0x14	ODR																	OD[15]	OD[14]	OD[13]	OD[12]	OD[11]	OD[10]	OD[9]	OD[8]	OD[7]	OD[6]	OD[5]	OD[4]	OD[3]	OD[2]	OD[1]	OD[0]
0x18	BSRR	BR[15]	BR[14]	BR[13]	BR[12]	BR[11]	BR[10]	BR[9]	BR[8]	BR[7]	BR[6]	BR[5]	BR[4]	BR[3]	BR[2]	BR[1]	BR[0]	BS[15]	BS[14]	BS[13]	BS[12]	BS[11]	BS[10]	BS[9]	BS[8]	BS[7]	BS[6]	BS[5]	BS[4]	BS[3]	BS[2]	BS[1]	BS[0]
0x1c	LCKR																LCKK	LCK[15]	LCK[14]	LCK[13]	LCK[12]	LCK[11]	LCK[10]	LCK[9]	LCK[8]	LCK[7]	LCK[6]	LCK[5]	LCK[4]	LCK[3]	LCK[2]	LCK[1]	LCK[0]
0x20	AFRL	AFR[EL7]				AFR[EL6]				AFR[EL5]				AFR[EL4]				AFR[EL3]				AFR[EL2]				AFR[EL1]				AFR[EL0]
0x24	AFRH	AFR[EL15]				AFR[EL14]				AFR[EL13]				AFR[EL12]				AFR[EL11]				AFR[EL10]				AFR[EL9]				AFR[EL8]
0x28	BRR																	BR[15]	BR[14]	BR[13]	BR[12]	BR[11]	BR[10]	BR[9]	BR[8]	BR[7]	BR[6]	BR[5]	BR[4]	BR[3]	BR[2]	BR[1]	BR[0]

Toggle registers

MODER

GPIO port mode register

Offset: 0x0, size: 32, reset: 0xFFFFFFFF, access: read-write

16/16 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
MODE[15] rw		MODE[14] rw		MODE[13] rw		MODE[12] rw		MODE[11] rw		MODE[10] rw		MODE[9] rw		MODE[8] rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
MODE[7] rw		MODE[6] rw		MODE[5] rw		MODE[4] rw		MODE[3] rw		MODE[2] rw		MODE[1] rw		MODE[0] rw

Toggle fields

MODE[0]

Bits 0-1: Port x configuration pin 0.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[1]

Bits 2-3: Port x configuration pin 1.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[2]

Bits 4-5: Port x configuration pin 2.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[3]

Bits 6-7: Port x configuration pin 3.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[4]

Bits 8-9: Port x configuration pin 4.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[5]

Bits 10-11: Port x configuration pin 5.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[6]

Bits 12-13: Port x configuration pin 6.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[7]

Bits 14-15: Port x configuration pin 7.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[8]

Bits 16-17: Port x configuration pin 8.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[9]

Bits 18-19: Port x configuration pin 9.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[10]

Bits 20-21: Port x configuration pin 10.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[11]

Bits 22-23: Port x configuration pin 11.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[12]

Bits 24-25: Port x configuration pin 12.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[13]

Bits 26-27: Port x configuration pin 13.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[14]

Bits 28-29: Port x configuration pin 14.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[15]

Bits 30-31: Port x configuration pin 15.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

OTYPER

GPIO port output type register

Offset: 0x4, size: 32, reset: 0x00000000, access: read-write

16/16 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
OT[15] rw	OT[14] rw	OT[13] rw	OT[12] rw	OT[11] rw	OT[10] rw	OT[9] rw	OT[8] rw	OT[7] rw	OT[6] rw	OT[5] rw	OT[4] rw	OT[3] rw	OT[2] rw	OT[1] rw	OT[0] rw

Toggle fields

OT[0]

Bit 0: Port x configuration pin 0.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[1]

Bit 1: Port x configuration pin 1.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[2]

Bit 2: Port x configuration pin 2.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[3]

Bit 3: Port x configuration pin 3.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[4]

Bit 4: Port x configuration pin 4.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[5]

Bit 5: Port x configuration pin 5.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[6]

Bit 6: Port x configuration pin 6.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[7]

Bit 7: Port x configuration pin 7.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[8]

Bit 8: Port x configuration pin 8.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[9]

Bit 9: Port x configuration pin 9.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[10]

Bit 10: Port x configuration pin 10.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[11]

Bit 11: Port x configuration pin 11.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[12]

Bit 12: Port x configuration pin 12.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[13]

Bit 13: Port x configuration pin 13.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[14]

Bit 14: Port x configuration pin 14.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[15]

Bit 15: Port x configuration pin 15.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OSPEEDR

GPIO port output speed register

Offset: 0x8, size: 32, reset: 0x00000000, access: read-write

16/16 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
OSPEED[15] rw		OSPEED[14] rw		OSPEED[13] rw		OSPEED[12] rw		OSPEED[11] rw		OSPEED[10] rw		OSPEED[9] rw		OSPEED[8] rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
OSPEED[7] rw		OSPEED[6] rw		OSPEED[5] rw		OSPEED[4] rw		OSPEED[3] rw		OSPEED[2] rw		OSPEED[1] rw		OSPEED[0] rw

Toggle fields

OSPEED[0]

Bits 0-1: Port x configuration pin 0.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[1]

Bits 2-3: Port x configuration pin 1.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[2]

Bits 4-5: Port x configuration pin 2.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[3]

Bits 6-7: Port x configuration pin 3.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[4]

Bits 8-9: Port x configuration pin 4.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[5]

Bits 10-11: Port x configuration pin 5.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[6]

Bits 12-13: Port x configuration pin 6.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[7]

Bits 14-15: Port x configuration pin 7.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[8]

Bits 16-17: Port x configuration pin 8.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[9]

Bits 18-19: Port x configuration pin 9.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[10]

Bits 20-21: Port x configuration pin 10.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[11]

Bits 22-23: Port x configuration pin 11.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[12]

Bits 24-25: Port x configuration pin 12.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[13]

Bits 26-27: Port x configuration pin 13.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[14]

Bits 28-29: Port x configuration pin 14.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[15]

Bits 30-31: Port x configuration pin 15.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

PUPDR

GPIO port pull-up/pull-down register

Offset: 0xc, size: 32, reset: 0x00000000, access: read-write

16/16 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
PUPD[15] rw		PUPD[14] rw		PUPD[13] rw		PUPD[12] rw		PUPD[11] rw		PUPD[10] rw		PUPD[9] rw		PUPD[8] rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
PUPD[7] rw		PUPD[6] rw		PUPD[5] rw		PUPD[4] rw		PUPD[3] rw		PUPD[2] rw		PUPD[1] rw		PUPD[0] rw

Toggle fields

PUPD[0]

Bits 0-1: Port x configuration pin 0.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[1]

Bits 2-3: Port x configuration pin 1.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[2]

Bits 4-5: Port x configuration pin 2.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[3]

Bits 6-7: Port x configuration pin 3.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[4]

Bits 8-9: Port x configuration pin 4.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[5]

Bits 10-11: Port x configuration pin 5.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[6]

Bits 12-13: Port x configuration pin 6.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[7]

Bits 14-15: Port x configuration pin 7.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[8]

Bits 16-17: Port x configuration pin 8.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[9]

Bits 18-19: Port x configuration pin 9.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[10]

Bits 20-21: Port x configuration pin 10.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[11]

Bits 22-23: Port x configuration pin 11.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[12]

Bits 24-25: Port x configuration pin 12.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[13]

Bits 26-27: Port x configuration pin 13.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[14]

Bits 28-29: Port x configuration pin 14.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[15]

Bits 30-31: Port x configuration pin 15.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

IDR

GPIO port input data register

Offset: 0x10, size: 32, reset: 0x00000000, access: read-only

16/16 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
ID[15] r	ID[14] r	ID[13] r	ID[12] r	ID[11] r	ID[10] r	ID[9] r	ID[8] r	ID[7] r	ID[6] r	ID[5] r	ID[4] r	ID[3] r	ID[2] r	ID[1] r	ID[0] r

Toggle fields

ID[0]

Bit 0: Port input data pin 0.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[1]

Bit 1: Port input data pin 1.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[2]

Bit 2: Port input data pin 2.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[3]

Bit 3: Port input data pin 3.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[4]

Bit 4: Port input data pin 4.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[5]

Bit 5: Port input data pin 5.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[6]

Bit 6: Port input data pin 6.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[7]

Bit 7: Port input data pin 7.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[8]

Bit 8: Port input data pin 8.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[9]

Bit 9: Port input data pin 9.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[10]

Bit 10: Port input data pin 10.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[11]

Bit 11: Port input data pin 11.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[12]

Bit 12: Port input data pin 12.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[13]

Bit 13: Port input data pin 13.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[14]

Bit 14: Port input data pin 14.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[15]

Bit 15: Port input data pin 15.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ODR

GPIO port output data register

Offset: 0x14, size: 32, reset: 0x00000000, access: read-write

16/16 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
OD[15] rw	OD[14] rw	OD[13] rw	OD[12] rw	OD[11] rw	OD[10] rw	OD[9] rw	OD[8] rw	OD[7] rw	OD[6] rw	OD[5] rw	OD[4] rw	OD[3] rw	OD[2] rw	OD[1] rw	OD[0] rw

Toggle fields

OD[0]

Bit 0: Port output data pin 0.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[1]

Bit 1: Port output data pin 1.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[2]

Bit 2: Port output data pin 2.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[3]

Bit 3: Port output data pin 3.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[4]

Bit 4: Port output data pin 4.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[5]

Bit 5: Port output data pin 5.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[6]

Bit 6: Port output data pin 6.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[7]

Bit 7: Port output data pin 7.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[8]

Bit 8: Port output data pin 8.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[9]

Bit 9: Port output data pin 9.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[10]

Bit 10: Port output data pin 10.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[11]

Bit 11: Port output data pin 11.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[12]

Bit 12: Port output data pin 12.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[13]

Bit 13: Port output data pin 13.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[14]

Bit 14: Port output data pin 14.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[15]

Bit 15: Port output data pin 15.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

BSRR

GPIO port bit set/reset register

Offset: 0x18, size: 32, reset: 0x00000000, access: write-only

32/32 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
BR[15] w	BR[14] w	BR[13] w	BR[12] w	BR[11] w	BR[10] w	BR[9] w	BR[8] w	BR[7] w	BR[6] w	BR[5] w	BR[4] w	BR[3] w	BR[2] w	BR[1] w	BR[0] w
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
BS[15] w	BS[14] w	BS[13] w	BS[12] w	BS[11] w	BS[10] w	BS[9] w	BS[8] w	BS[7] w	BS[6] w	BS[5] w	BS[4] w	BS[3] w	BS[2] w	BS[1] w	BS[0] w

Toggle fields

BS[0]

Bit 0: Port x set pin 0.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[1]

Bit 1: Port x set pin 1.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[2]

Bit 2: Port x set pin 2.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[3]

Bit 3: Port x set pin 3.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[4]

Bit 4: Port x set pin 4.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[5]

Bit 5: Port x set pin 5.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[6]

Bit 6: Port x set pin 6.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[7]

Bit 7: Port x set pin 7.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[8]

Bit 8: Port x set pin 8.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[9]

Bit 9: Port x set pin 9.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[10]

Bit 10: Port x set pin 10.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[11]

Bit 11: Port x set pin 11.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[12]

Bit 12: Port x set pin 12.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[13]

Bit 13: Port x set pin 13.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[14]

Bit 14: Port x set pin 14.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[15]

Bit 15: Port x set pin 15.

Allowed values:
1: Set: Sets the corresponding ODx bit

BR[0]

Bit 16: Port x reset pin 0.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[1]

Bit 17: Port x reset pin 1.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[2]

Bit 18: Port x reset pin 2.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[3]

Bit 19: Port x reset pin 3.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[4]

Bit 20: Port x reset pin 4.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[5]

Bit 21: Port x reset pin 5.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[6]

Bit 22: Port x reset pin 6.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[7]

Bit 23: Port x reset pin 7.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[8]

Bit 24: Port x reset pin 8.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[9]

Bit 25: Port x reset pin 9.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[10]

Bit 26: Port x reset pin 10.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[11]

Bit 27: Port x reset pin 11.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[12]

Bit 28: Port x reset pin 12.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[13]

Bit 29: Port x reset pin 13.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[14]

Bit 30: Port x reset pin 14.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[15]

Bit 31: Port x reset pin 15.

Allowed values:
1: Reset: Resets the corresponding ODx bit

LCKR

GPIO port configuration lock register

Offset: 0x1c, size: 32, reset: 0x00000000, access: read-write

17/17 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
															LCKK rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
LCK[15] rw	LCK[14] rw	LCK[13] rw	LCK[12] rw	LCK[11] rw	LCK[10] rw	LCK[9] rw	LCK[8] rw	LCK[7] rw	LCK[6] rw	LCK[5] rw	LCK[4] rw	LCK[3] rw	LCK[2] rw	LCK[1] rw	LCK[0] rw

Toggle fields

LCK[0]

Bit 0: Port x lock pin 0.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[1]

Bit 1: Port x lock pin 1.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[2]

Bit 2: Port x lock pin 2.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[3]

Bit 3: Port x lock pin 3.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[4]

Bit 4: Port x lock pin 4.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[5]

Bit 5: Port x lock pin 5.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[6]

Bit 6: Port x lock pin 6.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[7]

Bit 7: Port x lock pin 7.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[8]

Bit 8: Port x lock pin 8.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[9]

Bit 9: Port x lock pin 9.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[10]

Bit 10: Port x lock pin 10.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[11]

Bit 11: Port x lock pin 11.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[12]

Bit 12: Port x lock pin 12.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[13]

Bit 13: Port x lock pin 13.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[14]

Bit 14: Port x lock pin 14.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[15]

Bit 15: Port x lock pin 15.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCKK

Bit 16: Port x lock bit y (y= 0..15).

Allowed values:
0: NotActive: Port configuration lock key not active
1: Active: Port configuration lock key active

AFRL

GPIO alternate function low register

Offset: 0x20, size: 32, reset: 0x00000000, access: read-write

8/8 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
AFR[EL7] rw				AFR[EL6] rw				AFR[EL5] rw				AFR[EL4] rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
AFR[EL3] rw				AFR[EL2] rw				AFR[EL1] rw				AFR[EL0] rw

Toggle fields

AFR[EL0]

Bits 0-3: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL1]

Bits 4-7: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL2]

Bits 8-11: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL3]

Bits 12-15: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL4]

Bits 16-19: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL5]

Bits 20-23: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL6]

Bits 24-27: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL7]

Bits 28-31: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFRH

GPIO alternate function high register

Offset: 0x24, size: 32, reset: 0x00000000, access: read-write

8/8 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
AFR[EL15] rw				AFR[EL14] rw				AFR[EL13] rw				AFR[EL12] rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
AFR[EL11] rw				AFR[EL10] rw				AFR[EL9] rw				AFR[EL8] rw

Toggle fields

AFR[EL8]

Bits 0-3: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL9]

Bits 4-7: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL10]

Bits 8-11: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL11]

Bits 12-15: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL12]

Bits 16-19: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL13]

Bits 20-23: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL14]

Bits 24-27: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL15]

Bits 28-31: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

BRR

GPIO port bit reset register

Offset: 0x28, size: 32, reset: 0x00000000, access: write-only

16/16 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
BR[15] w	BR[14] w	BR[13] w	BR[12] w	BR[11] w	BR[10] w	BR[9] w	BR[8] w	BR[7] w	BR[6] w	BR[5] w	BR[4] w	BR[3] w	BR[2] w	BR[1] w	BR[0] w

Toggle fields

BR[0]

Bit 0: Port x reset pin 0.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[1]

Bit 1: Port x reset pin 1.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[2]

Bit 2: Port x reset pin 2.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[3]

Bit 3: Port x reset pin 3.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[4]

Bit 4: Port x reset pin 4.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[5]

Bit 5: Port x reset pin 5.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[6]

Bit 6: Port x reset pin 6.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[7]

Bit 7: Port x reset pin 7.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[8]

Bit 8: Port x reset pin 8.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[9]

Bit 9: Port x reset pin 9.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[10]

Bit 10: Port x reset pin 10.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[11]

Bit 11: Port x reset pin 11.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[12]

Bit 12: Port x reset pin 12.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[13]

Bit 13: Port x reset pin 13.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[14]

Bit 14: Port x reset pin 14.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[15]

Bit 15: Port x reset pin 15.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

GPIOC

0x50000800: General-purpose I/Os

177/177 fields covered.

Toggle register map

Offset	Name	31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
0x0	MODER	MODE[15]		MODE[14]		MODE[13]		MODE[12]		MODE[11]		MODE[10]		MODE[9]		MODE[8]		MODE[7]		MODE[6]		MODE[5]		MODE[4]		MODE[3]		MODE[2]		MODE[1]		MODE[0]
0x4	OTYPER																	OT[15]	OT[14]	OT[13]	OT[12]	OT[11]	OT[10]	OT[9]	OT[8]	OT[7]	OT[6]	OT[5]	OT[4]	OT[3]	OT[2]	OT[1]	OT[0]
0x8	OSPEEDR	OSPEED[15]		OSPEED[14]		OSPEED[13]		OSPEED[12]		OSPEED[11]		OSPEED[10]		OSPEED[9]		OSPEED[8]		OSPEED[7]		OSPEED[6]		OSPEED[5]		OSPEED[4]		OSPEED[3]		OSPEED[2]		OSPEED[1]		OSPEED[0]
0xc	PUPDR	PUPD[15]		PUPD[14]		PUPD[13]		PUPD[12]		PUPD[11]		PUPD[10]		PUPD[9]		PUPD[8]		PUPD[7]		PUPD[6]		PUPD[5]		PUPD[4]		PUPD[3]		PUPD[2]		PUPD[1]		PUPD[0]
0x10	IDR																	ID[15]	ID[14]	ID[13]	ID[12]	ID[11]	ID[10]	ID[9]	ID[8]	ID[7]	ID[6]	ID[5]	ID[4]	ID[3]	ID[2]	ID[1]	ID[0]
0x14	ODR																	OD[15]	OD[14]	OD[13]	OD[12]	OD[11]	OD[10]	OD[9]	OD[8]	OD[7]	OD[6]	OD[5]	OD[4]	OD[3]	OD[2]	OD[1]	OD[0]
0x18	BSRR	BR[15]	BR[14]	BR[13]	BR[12]	BR[11]	BR[10]	BR[9]	BR[8]	BR[7]	BR[6]	BR[5]	BR[4]	BR[3]	BR[2]	BR[1]	BR[0]	BS[15]	BS[14]	BS[13]	BS[12]	BS[11]	BS[10]	BS[9]	BS[8]	BS[7]	BS[6]	BS[5]	BS[4]	BS[3]	BS[2]	BS[1]	BS[0]
0x1c	LCKR																LCKK	LCK[15]	LCK[14]	LCK[13]	LCK[12]	LCK[11]	LCK[10]	LCK[9]	LCK[8]	LCK[7]	LCK[6]	LCK[5]	LCK[4]	LCK[3]	LCK[2]	LCK[1]	LCK[0]
0x20	AFRL	AFR[EL7]				AFR[EL6]				AFR[EL5]				AFR[EL4]				AFR[EL3]				AFR[EL2]				AFR[EL1]				AFR[EL0]
0x24	AFRH	AFR[EL15]				AFR[EL14]				AFR[EL13]				AFR[EL12]				AFR[EL11]				AFR[EL10]				AFR[EL9]				AFR[EL8]
0x28	BRR																	BR[15]	BR[14]	BR[13]	BR[12]	BR[11]	BR[10]	BR[9]	BR[8]	BR[7]	BR[6]	BR[5]	BR[4]	BR[3]	BR[2]	BR[1]	BR[0]

Toggle registers

MODER

GPIO port mode register

Offset: 0x0, size: 32, reset: 0xFFFFFFFF, access: read-write

16/16 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
MODE[15] rw		MODE[14] rw		MODE[13] rw		MODE[12] rw		MODE[11] rw		MODE[10] rw		MODE[9] rw		MODE[8] rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
MODE[7] rw		MODE[6] rw		MODE[5] rw		MODE[4] rw		MODE[3] rw		MODE[2] rw		MODE[1] rw		MODE[0] rw

Toggle fields

MODE[0]

Bits 0-1: Port x configuration pin 0.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[1]

Bits 2-3: Port x configuration pin 1.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[2]

Bits 4-5: Port x configuration pin 2.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[3]

Bits 6-7: Port x configuration pin 3.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[4]

Bits 8-9: Port x configuration pin 4.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[5]

Bits 10-11: Port x configuration pin 5.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[6]

Bits 12-13: Port x configuration pin 6.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[7]

Bits 14-15: Port x configuration pin 7.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[8]

Bits 16-17: Port x configuration pin 8.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[9]

Bits 18-19: Port x configuration pin 9.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[10]

Bits 20-21: Port x configuration pin 10.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[11]

Bits 22-23: Port x configuration pin 11.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[12]

Bits 24-25: Port x configuration pin 12.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[13]

Bits 26-27: Port x configuration pin 13.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[14]

Bits 28-29: Port x configuration pin 14.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[15]

Bits 30-31: Port x configuration pin 15.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

OTYPER

GPIO port output type register

Offset: 0x4, size: 32, reset: 0x00000000, access: read-write

16/16 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
OT[15] rw	OT[14] rw	OT[13] rw	OT[12] rw	OT[11] rw	OT[10] rw	OT[9] rw	OT[8] rw	OT[7] rw	OT[6] rw	OT[5] rw	OT[4] rw	OT[3] rw	OT[2] rw	OT[1] rw	OT[0] rw

Toggle fields

OT[0]

Bit 0: Port x configuration pin 0.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[1]

Bit 1: Port x configuration pin 1.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[2]

Bit 2: Port x configuration pin 2.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[3]

Bit 3: Port x configuration pin 3.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[4]

Bit 4: Port x configuration pin 4.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[5]

Bit 5: Port x configuration pin 5.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[6]

Bit 6: Port x configuration pin 6.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[7]

Bit 7: Port x configuration pin 7.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[8]

Bit 8: Port x configuration pin 8.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[9]

Bit 9: Port x configuration pin 9.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[10]

Bit 10: Port x configuration pin 10.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[11]

Bit 11: Port x configuration pin 11.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[12]

Bit 12: Port x configuration pin 12.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[13]

Bit 13: Port x configuration pin 13.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[14]

Bit 14: Port x configuration pin 14.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[15]

Bit 15: Port x configuration pin 15.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OSPEEDR

GPIO port output speed register

Offset: 0x8, size: 32, reset: 0x00000000, access: read-write

16/16 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
OSPEED[15] rw		OSPEED[14] rw		OSPEED[13] rw		OSPEED[12] rw		OSPEED[11] rw		OSPEED[10] rw		OSPEED[9] rw		OSPEED[8] rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
OSPEED[7] rw		OSPEED[6] rw		OSPEED[5] rw		OSPEED[4] rw		OSPEED[3] rw		OSPEED[2] rw		OSPEED[1] rw		OSPEED[0] rw

Toggle fields

OSPEED[0]

Bits 0-1: Port x configuration pin 0.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[1]

Bits 2-3: Port x configuration pin 1.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[2]

Bits 4-5: Port x configuration pin 2.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[3]

Bits 6-7: Port x configuration pin 3.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[4]

Bits 8-9: Port x configuration pin 4.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[5]

Bits 10-11: Port x configuration pin 5.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[6]

Bits 12-13: Port x configuration pin 6.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[7]

Bits 14-15: Port x configuration pin 7.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[8]

Bits 16-17: Port x configuration pin 8.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[9]

Bits 18-19: Port x configuration pin 9.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[10]

Bits 20-21: Port x configuration pin 10.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[11]

Bits 22-23: Port x configuration pin 11.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[12]

Bits 24-25: Port x configuration pin 12.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[13]

Bits 26-27: Port x configuration pin 13.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[14]

Bits 28-29: Port x configuration pin 14.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[15]

Bits 30-31: Port x configuration pin 15.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

PUPDR

GPIO port pull-up/pull-down register

Offset: 0xc, size: 32, reset: 0x00000000, access: read-write

16/16 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
PUPD[15] rw		PUPD[14] rw		PUPD[13] rw		PUPD[12] rw		PUPD[11] rw		PUPD[10] rw		PUPD[9] rw		PUPD[8] rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
PUPD[7] rw		PUPD[6] rw		PUPD[5] rw		PUPD[4] rw		PUPD[3] rw		PUPD[2] rw		PUPD[1] rw		PUPD[0] rw

Toggle fields

PUPD[0]

Bits 0-1: Port x configuration pin 0.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[1]

Bits 2-3: Port x configuration pin 1.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[2]

Bits 4-5: Port x configuration pin 2.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[3]

Bits 6-7: Port x configuration pin 3.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[4]

Bits 8-9: Port x configuration pin 4.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[5]

Bits 10-11: Port x configuration pin 5.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[6]

Bits 12-13: Port x configuration pin 6.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[7]

Bits 14-15: Port x configuration pin 7.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[8]

Bits 16-17: Port x configuration pin 8.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[9]

Bits 18-19: Port x configuration pin 9.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[10]

Bits 20-21: Port x configuration pin 10.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[11]

Bits 22-23: Port x configuration pin 11.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[12]

Bits 24-25: Port x configuration pin 12.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[13]

Bits 26-27: Port x configuration pin 13.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[14]

Bits 28-29: Port x configuration pin 14.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[15]

Bits 30-31: Port x configuration pin 15.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

IDR

GPIO port input data register

Offset: 0x10, size: 32, reset: 0x00000000, access: read-only

16/16 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
ID[15] r	ID[14] r	ID[13] r	ID[12] r	ID[11] r	ID[10] r	ID[9] r	ID[8] r	ID[7] r	ID[6] r	ID[5] r	ID[4] r	ID[3] r	ID[2] r	ID[1] r	ID[0] r

Toggle fields

ID[0]

Bit 0: Port input data pin 0.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[1]

Bit 1: Port input data pin 1.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[2]

Bit 2: Port input data pin 2.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[3]

Bit 3: Port input data pin 3.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[4]

Bit 4: Port input data pin 4.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[5]

Bit 5: Port input data pin 5.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[6]

Bit 6: Port input data pin 6.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[7]

Bit 7: Port input data pin 7.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[8]

Bit 8: Port input data pin 8.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[9]

Bit 9: Port input data pin 9.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[10]

Bit 10: Port input data pin 10.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[11]

Bit 11: Port input data pin 11.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[12]

Bit 12: Port input data pin 12.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[13]

Bit 13: Port input data pin 13.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[14]

Bit 14: Port input data pin 14.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[15]

Bit 15: Port input data pin 15.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ODR

GPIO port output data register

Offset: 0x14, size: 32, reset: 0x00000000, access: read-write

16/16 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
OD[15] rw	OD[14] rw	OD[13] rw	OD[12] rw	OD[11] rw	OD[10] rw	OD[9] rw	OD[8] rw	OD[7] rw	OD[6] rw	OD[5] rw	OD[4] rw	OD[3] rw	OD[2] rw	OD[1] rw	OD[0] rw

Toggle fields

OD[0]

Bit 0: Port output data pin 0.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[1]

Bit 1: Port output data pin 1.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[2]

Bit 2: Port output data pin 2.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[3]

Bit 3: Port output data pin 3.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[4]

Bit 4: Port output data pin 4.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[5]

Bit 5: Port output data pin 5.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[6]

Bit 6: Port output data pin 6.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[7]

Bit 7: Port output data pin 7.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[8]

Bit 8: Port output data pin 8.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[9]

Bit 9: Port output data pin 9.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[10]

Bit 10: Port output data pin 10.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[11]

Bit 11: Port output data pin 11.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[12]

Bit 12: Port output data pin 12.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[13]

Bit 13: Port output data pin 13.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[14]

Bit 14: Port output data pin 14.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[15]

Bit 15: Port output data pin 15.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

BSRR

GPIO port bit set/reset register

Offset: 0x18, size: 32, reset: 0x00000000, access: write-only

32/32 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
BR[15] w	BR[14] w	BR[13] w	BR[12] w	BR[11] w	BR[10] w	BR[9] w	BR[8] w	BR[7] w	BR[6] w	BR[5] w	BR[4] w	BR[3] w	BR[2] w	BR[1] w	BR[0] w
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
BS[15] w	BS[14] w	BS[13] w	BS[12] w	BS[11] w	BS[10] w	BS[9] w	BS[8] w	BS[7] w	BS[6] w	BS[5] w	BS[4] w	BS[3] w	BS[2] w	BS[1] w	BS[0] w

Toggle fields

BS[0]

Bit 0: Port x set pin 0.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[1]

Bit 1: Port x set pin 1.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[2]

Bit 2: Port x set pin 2.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[3]

Bit 3: Port x set pin 3.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[4]

Bit 4: Port x set pin 4.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[5]

Bit 5: Port x set pin 5.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[6]

Bit 6: Port x set pin 6.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[7]

Bit 7: Port x set pin 7.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[8]

Bit 8: Port x set pin 8.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[9]

Bit 9: Port x set pin 9.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[10]

Bit 10: Port x set pin 10.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[11]

Bit 11: Port x set pin 11.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[12]

Bit 12: Port x set pin 12.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[13]

Bit 13: Port x set pin 13.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[14]

Bit 14: Port x set pin 14.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[15]

Bit 15: Port x set pin 15.

Allowed values:
1: Set: Sets the corresponding ODx bit

BR[0]

Bit 16: Port x reset pin 0.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[1]

Bit 17: Port x reset pin 1.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[2]

Bit 18: Port x reset pin 2.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[3]

Bit 19: Port x reset pin 3.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[4]

Bit 20: Port x reset pin 4.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[5]

Bit 21: Port x reset pin 5.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[6]

Bit 22: Port x reset pin 6.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[7]

Bit 23: Port x reset pin 7.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[8]

Bit 24: Port x reset pin 8.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[9]

Bit 25: Port x reset pin 9.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[10]

Bit 26: Port x reset pin 10.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[11]

Bit 27: Port x reset pin 11.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[12]

Bit 28: Port x reset pin 12.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[13]

Bit 29: Port x reset pin 13.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[14]

Bit 30: Port x reset pin 14.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[15]

Bit 31: Port x reset pin 15.

Allowed values:
1: Reset: Resets the corresponding ODx bit

LCKR

GPIO port configuration lock register

Offset: 0x1c, size: 32, reset: 0x00000000, access: read-write

17/17 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
															LCKK rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
LCK[15] rw	LCK[14] rw	LCK[13] rw	LCK[12] rw	LCK[11] rw	LCK[10] rw	LCK[9] rw	LCK[8] rw	LCK[7] rw	LCK[6] rw	LCK[5] rw	LCK[4] rw	LCK[3] rw	LCK[2] rw	LCK[1] rw	LCK[0] rw

Toggle fields

LCK[0]

Bit 0: Port x lock pin 0.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[1]

Bit 1: Port x lock pin 1.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[2]

Bit 2: Port x lock pin 2.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[3]

Bit 3: Port x lock pin 3.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[4]

Bit 4: Port x lock pin 4.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[5]

Bit 5: Port x lock pin 5.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[6]

Bit 6: Port x lock pin 6.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[7]

Bit 7: Port x lock pin 7.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[8]

Bit 8: Port x lock pin 8.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[9]

Bit 9: Port x lock pin 9.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[10]

Bit 10: Port x lock pin 10.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[11]

Bit 11: Port x lock pin 11.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[12]

Bit 12: Port x lock pin 12.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[13]

Bit 13: Port x lock pin 13.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[14]

Bit 14: Port x lock pin 14.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[15]

Bit 15: Port x lock pin 15.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCKK

Bit 16: Port x lock bit y (y= 0..15).

Allowed values:
0: NotActive: Port configuration lock key not active
1: Active: Port configuration lock key active

AFRL

GPIO alternate function low register

Offset: 0x20, size: 32, reset: 0x00000000, access: read-write

8/8 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
AFR[EL7] rw				AFR[EL6] rw				AFR[EL5] rw				AFR[EL4] rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
AFR[EL3] rw				AFR[EL2] rw				AFR[EL1] rw				AFR[EL0] rw

Toggle fields

AFR[EL0]

Bits 0-3: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL1]

Bits 4-7: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL2]

Bits 8-11: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL3]

Bits 12-15: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL4]

Bits 16-19: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL5]

Bits 20-23: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL6]

Bits 24-27: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL7]

Bits 28-31: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFRH

GPIO alternate function high register

Offset: 0x24, size: 32, reset: 0x00000000, access: read-write

8/8 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
AFR[EL15] rw				AFR[EL14] rw				AFR[EL13] rw				AFR[EL12] rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
AFR[EL11] rw				AFR[EL10] rw				AFR[EL9] rw				AFR[EL8] rw

Toggle fields

AFR[EL8]

Bits 0-3: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL9]

Bits 4-7: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL10]

Bits 8-11: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL11]

Bits 12-15: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL12]

Bits 16-19: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL13]

Bits 20-23: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL14]

Bits 24-27: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL15]

Bits 28-31: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

BRR

GPIO port bit reset register

Offset: 0x28, size: 32, reset: 0x00000000, access: write-only

16/16 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
BR[15] w	BR[14] w	BR[13] w	BR[12] w	BR[11] w	BR[10] w	BR[9] w	BR[8] w	BR[7] w	BR[6] w	BR[5] w	BR[4] w	BR[3] w	BR[2] w	BR[1] w	BR[0] w

Toggle fields

BR[0]

Bit 0: Port x reset pin 0.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[1]

Bit 1: Port x reset pin 1.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[2]

Bit 2: Port x reset pin 2.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[3]

Bit 3: Port x reset pin 3.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[4]

Bit 4: Port x reset pin 4.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[5]

Bit 5: Port x reset pin 5.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[6]

Bit 6: Port x reset pin 6.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[7]

Bit 7: Port x reset pin 7.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[8]

Bit 8: Port x reset pin 8.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[9]

Bit 9: Port x reset pin 9.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[10]

Bit 10: Port x reset pin 10.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[11]

Bit 11: Port x reset pin 11.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[12]

Bit 12: Port x reset pin 12.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[13]

Bit 13: Port x reset pin 13.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[14]

Bit 14: Port x reset pin 14.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[15]

Bit 15: Port x reset pin 15.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

GPIOD

0x50000c00: General-purpose I/Os

177/177 fields covered.

Toggle register map

Offset	Name	31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
0x0	MODER	MODE[15]		MODE[14]		MODE[13]		MODE[12]		MODE[11]		MODE[10]		MODE[9]		MODE[8]		MODE[7]		MODE[6]		MODE[5]		MODE[4]		MODE[3]		MODE[2]		MODE[1]		MODE[0]
0x4	OTYPER																	OT[15]	OT[14]	OT[13]	OT[12]	OT[11]	OT[10]	OT[9]	OT[8]	OT[7]	OT[6]	OT[5]	OT[4]	OT[3]	OT[2]	OT[1]	OT[0]
0x8	OSPEEDR	OSPEED[15]		OSPEED[14]		OSPEED[13]		OSPEED[12]		OSPEED[11]		OSPEED[10]		OSPEED[9]		OSPEED[8]		OSPEED[7]		OSPEED[6]		OSPEED[5]		OSPEED[4]		OSPEED[3]		OSPEED[2]		OSPEED[1]		OSPEED[0]
0xc	PUPDR	PUPD[15]		PUPD[14]		PUPD[13]		PUPD[12]		PUPD[11]		PUPD[10]		PUPD[9]		PUPD[8]		PUPD[7]		PUPD[6]		PUPD[5]		PUPD[4]		PUPD[3]		PUPD[2]		PUPD[1]		PUPD[0]
0x10	IDR																	ID[15]	ID[14]	ID[13]	ID[12]	ID[11]	ID[10]	ID[9]	ID[8]	ID[7]	ID[6]	ID[5]	ID[4]	ID[3]	ID[2]	ID[1]	ID[0]
0x14	ODR																	OD[15]	OD[14]	OD[13]	OD[12]	OD[11]	OD[10]	OD[9]	OD[8]	OD[7]	OD[6]	OD[5]	OD[4]	OD[3]	OD[2]	OD[1]	OD[0]
0x18	BSRR	BR[15]	BR[14]	BR[13]	BR[12]	BR[11]	BR[10]	BR[9]	BR[8]	BR[7]	BR[6]	BR[5]	BR[4]	BR[3]	BR[2]	BR[1]	BR[0]	BS[15]	BS[14]	BS[13]	BS[12]	BS[11]	BS[10]	BS[9]	BS[8]	BS[7]	BS[6]	BS[5]	BS[4]	BS[3]	BS[2]	BS[1]	BS[0]
0x1c	LCKR																LCKK	LCK[15]	LCK[14]	LCK[13]	LCK[12]	LCK[11]	LCK[10]	LCK[9]	LCK[8]	LCK[7]	LCK[6]	LCK[5]	LCK[4]	LCK[3]	LCK[2]	LCK[1]	LCK[0]
0x20	AFRL	AFR[EL7]				AFR[EL6]				AFR[EL5]				AFR[EL4]				AFR[EL3]				AFR[EL2]				AFR[EL1]				AFR[EL0]
0x24	AFRH	AFR[EL15]				AFR[EL14]				AFR[EL13]				AFR[EL12]				AFR[EL11]				AFR[EL10]				AFR[EL9]				AFR[EL8]
0x28	BRR																	BR[15]	BR[14]	BR[13]	BR[12]	BR[11]	BR[10]	BR[9]	BR[8]	BR[7]	BR[6]	BR[5]	BR[4]	BR[3]	BR[2]	BR[1]	BR[0]

Toggle registers

MODER

GPIO port mode register

Offset: 0x0, size: 32, reset: 0xFFFFFFFF, access: read-write

16/16 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
MODE[15] rw		MODE[14] rw		MODE[13] rw		MODE[12] rw		MODE[11] rw		MODE[10] rw		MODE[9] rw		MODE[8] rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
MODE[7] rw		MODE[6] rw		MODE[5] rw		MODE[4] rw		MODE[3] rw		MODE[2] rw		MODE[1] rw		MODE[0] rw

Toggle fields

MODE[0]

Bits 0-1: Port x configuration pin 0.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[1]

Bits 2-3: Port x configuration pin 1.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[2]

Bits 4-5: Port x configuration pin 2.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[3]

Bits 6-7: Port x configuration pin 3.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[4]

Bits 8-9: Port x configuration pin 4.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[5]

Bits 10-11: Port x configuration pin 5.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[6]

Bits 12-13: Port x configuration pin 6.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[7]

Bits 14-15: Port x configuration pin 7.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[8]

Bits 16-17: Port x configuration pin 8.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[9]

Bits 18-19: Port x configuration pin 9.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[10]

Bits 20-21: Port x configuration pin 10.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[11]

Bits 22-23: Port x configuration pin 11.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[12]

Bits 24-25: Port x configuration pin 12.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[13]

Bits 26-27: Port x configuration pin 13.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[14]

Bits 28-29: Port x configuration pin 14.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[15]

Bits 30-31: Port x configuration pin 15.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

OTYPER

GPIO port output type register

Offset: 0x4, size: 32, reset: 0x00000000, access: read-write

16/16 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
OT[15] rw	OT[14] rw	OT[13] rw	OT[12] rw	OT[11] rw	OT[10] rw	OT[9] rw	OT[8] rw	OT[7] rw	OT[6] rw	OT[5] rw	OT[4] rw	OT[3] rw	OT[2] rw	OT[1] rw	OT[0] rw

Toggle fields

OT[0]

Bit 0: Port x configuration pin 0.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[1]

Bit 1: Port x configuration pin 1.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[2]

Bit 2: Port x configuration pin 2.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[3]

Bit 3: Port x configuration pin 3.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[4]

Bit 4: Port x configuration pin 4.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[5]

Bit 5: Port x configuration pin 5.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[6]

Bit 6: Port x configuration pin 6.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[7]

Bit 7: Port x configuration pin 7.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[8]

Bit 8: Port x configuration pin 8.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[9]

Bit 9: Port x configuration pin 9.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[10]

Bit 10: Port x configuration pin 10.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[11]

Bit 11: Port x configuration pin 11.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[12]

Bit 12: Port x configuration pin 12.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[13]

Bit 13: Port x configuration pin 13.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[14]

Bit 14: Port x configuration pin 14.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[15]

Bit 15: Port x configuration pin 15.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OSPEEDR

GPIO port output speed register

Offset: 0x8, size: 32, reset: 0x00000000, access: read-write

16/16 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
OSPEED[15] rw		OSPEED[14] rw		OSPEED[13] rw		OSPEED[12] rw		OSPEED[11] rw		OSPEED[10] rw		OSPEED[9] rw		OSPEED[8] rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
OSPEED[7] rw		OSPEED[6] rw		OSPEED[5] rw		OSPEED[4] rw		OSPEED[3] rw		OSPEED[2] rw		OSPEED[1] rw		OSPEED[0] rw

Toggle fields

OSPEED[0]

Bits 0-1: Port x configuration pin 0.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[1]

Bits 2-3: Port x configuration pin 1.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[2]

Bits 4-5: Port x configuration pin 2.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[3]

Bits 6-7: Port x configuration pin 3.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[4]

Bits 8-9: Port x configuration pin 4.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[5]

Bits 10-11: Port x configuration pin 5.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[6]

Bits 12-13: Port x configuration pin 6.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[7]

Bits 14-15: Port x configuration pin 7.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[8]

Bits 16-17: Port x configuration pin 8.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[9]

Bits 18-19: Port x configuration pin 9.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[10]

Bits 20-21: Port x configuration pin 10.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[11]

Bits 22-23: Port x configuration pin 11.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[12]

Bits 24-25: Port x configuration pin 12.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[13]

Bits 26-27: Port x configuration pin 13.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[14]

Bits 28-29: Port x configuration pin 14.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[15]

Bits 30-31: Port x configuration pin 15.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

PUPDR

GPIO port pull-up/pull-down register

Offset: 0xc, size: 32, reset: 0x00000000, access: read-write

16/16 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
PUPD[15] rw		PUPD[14] rw		PUPD[13] rw		PUPD[12] rw		PUPD[11] rw		PUPD[10] rw		PUPD[9] rw		PUPD[8] rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
PUPD[7] rw		PUPD[6] rw		PUPD[5] rw		PUPD[4] rw		PUPD[3] rw		PUPD[2] rw		PUPD[1] rw		PUPD[0] rw

Toggle fields

PUPD[0]

Bits 0-1: Port x configuration pin 0.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[1]

Bits 2-3: Port x configuration pin 1.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[2]

Bits 4-5: Port x configuration pin 2.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[3]

Bits 6-7: Port x configuration pin 3.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[4]

Bits 8-9: Port x configuration pin 4.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[5]

Bits 10-11: Port x configuration pin 5.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[6]

Bits 12-13: Port x configuration pin 6.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[7]

Bits 14-15: Port x configuration pin 7.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[8]

Bits 16-17: Port x configuration pin 8.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[9]

Bits 18-19: Port x configuration pin 9.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[10]

Bits 20-21: Port x configuration pin 10.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[11]

Bits 22-23: Port x configuration pin 11.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[12]

Bits 24-25: Port x configuration pin 12.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[13]

Bits 26-27: Port x configuration pin 13.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[14]

Bits 28-29: Port x configuration pin 14.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[15]

Bits 30-31: Port x configuration pin 15.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

IDR

GPIO port input data register

Offset: 0x10, size: 32, reset: 0x00000000, access: read-only

16/16 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
ID[15] r	ID[14] r	ID[13] r	ID[12] r	ID[11] r	ID[10] r	ID[9] r	ID[8] r	ID[7] r	ID[6] r	ID[5] r	ID[4] r	ID[3] r	ID[2] r	ID[1] r	ID[0] r

Toggle fields

ID[0]

Bit 0: Port input data pin 0.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[1]

Bit 1: Port input data pin 1.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[2]

Bit 2: Port input data pin 2.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[3]

Bit 3: Port input data pin 3.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[4]

Bit 4: Port input data pin 4.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[5]

Bit 5: Port input data pin 5.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[6]

Bit 6: Port input data pin 6.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[7]

Bit 7: Port input data pin 7.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[8]

Bit 8: Port input data pin 8.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[9]

Bit 9: Port input data pin 9.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[10]

Bit 10: Port input data pin 10.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[11]

Bit 11: Port input data pin 11.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[12]

Bit 12: Port input data pin 12.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[13]

Bit 13: Port input data pin 13.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[14]

Bit 14: Port input data pin 14.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[15]

Bit 15: Port input data pin 15.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ODR

GPIO port output data register

Offset: 0x14, size: 32, reset: 0x00000000, access: read-write

16/16 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
OD[15] rw	OD[14] rw	OD[13] rw	OD[12] rw	OD[11] rw	OD[10] rw	OD[9] rw	OD[8] rw	OD[7] rw	OD[6] rw	OD[5] rw	OD[4] rw	OD[3] rw	OD[2] rw	OD[1] rw	OD[0] rw

Toggle fields

OD[0]

Bit 0: Port output data pin 0.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[1]

Bit 1: Port output data pin 1.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[2]

Bit 2: Port output data pin 2.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[3]

Bit 3: Port output data pin 3.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[4]

Bit 4: Port output data pin 4.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[5]

Bit 5: Port output data pin 5.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[6]

Bit 6: Port output data pin 6.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[7]

Bit 7: Port output data pin 7.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[8]

Bit 8: Port output data pin 8.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[9]

Bit 9: Port output data pin 9.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[10]

Bit 10: Port output data pin 10.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[11]

Bit 11: Port output data pin 11.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[12]

Bit 12: Port output data pin 12.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[13]

Bit 13: Port output data pin 13.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[14]

Bit 14: Port output data pin 14.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[15]

Bit 15: Port output data pin 15.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

BSRR

GPIO port bit set/reset register

Offset: 0x18, size: 32, reset: 0x00000000, access: write-only

32/32 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
BR[15] w	BR[14] w	BR[13] w	BR[12] w	BR[11] w	BR[10] w	BR[9] w	BR[8] w	BR[7] w	BR[6] w	BR[5] w	BR[4] w	BR[3] w	BR[2] w	BR[1] w	BR[0] w
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
BS[15] w	BS[14] w	BS[13] w	BS[12] w	BS[11] w	BS[10] w	BS[9] w	BS[8] w	BS[7] w	BS[6] w	BS[5] w	BS[4] w	BS[3] w	BS[2] w	BS[1] w	BS[0] w

Toggle fields

BS[0]

Bit 0: Port x set pin 0.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[1]

Bit 1: Port x set pin 1.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[2]

Bit 2: Port x set pin 2.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[3]

Bit 3: Port x set pin 3.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[4]

Bit 4: Port x set pin 4.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[5]

Bit 5: Port x set pin 5.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[6]

Bit 6: Port x set pin 6.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[7]

Bit 7: Port x set pin 7.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[8]

Bit 8: Port x set pin 8.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[9]

Bit 9: Port x set pin 9.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[10]

Bit 10: Port x set pin 10.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[11]

Bit 11: Port x set pin 11.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[12]

Bit 12: Port x set pin 12.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[13]

Bit 13: Port x set pin 13.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[14]

Bit 14: Port x set pin 14.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[15]

Bit 15: Port x set pin 15.

Allowed values:
1: Set: Sets the corresponding ODx bit

BR[0]

Bit 16: Port x reset pin 0.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[1]

Bit 17: Port x reset pin 1.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[2]

Bit 18: Port x reset pin 2.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[3]

Bit 19: Port x reset pin 3.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[4]

Bit 20: Port x reset pin 4.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[5]

Bit 21: Port x reset pin 5.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[6]

Bit 22: Port x reset pin 6.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[7]

Bit 23: Port x reset pin 7.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[8]

Bit 24: Port x reset pin 8.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[9]

Bit 25: Port x reset pin 9.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[10]

Bit 26: Port x reset pin 10.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[11]

Bit 27: Port x reset pin 11.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[12]

Bit 28: Port x reset pin 12.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[13]

Bit 29: Port x reset pin 13.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[14]

Bit 30: Port x reset pin 14.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[15]

Bit 31: Port x reset pin 15.

Allowed values:
1: Reset: Resets the corresponding ODx bit

LCKR

GPIO port configuration lock register

Offset: 0x1c, size: 32, reset: 0x00000000, access: read-write

17/17 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
															LCKK rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
LCK[15] rw	LCK[14] rw	LCK[13] rw	LCK[12] rw	LCK[11] rw	LCK[10] rw	LCK[9] rw	LCK[8] rw	LCK[7] rw	LCK[6] rw	LCK[5] rw	LCK[4] rw	LCK[3] rw	LCK[2] rw	LCK[1] rw	LCK[0] rw

Toggle fields

LCK[0]

Bit 0: Port x lock pin 0.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[1]

Bit 1: Port x lock pin 1.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[2]

Bit 2: Port x lock pin 2.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[3]

Bit 3: Port x lock pin 3.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[4]

Bit 4: Port x lock pin 4.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[5]

Bit 5: Port x lock pin 5.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[6]

Bit 6: Port x lock pin 6.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[7]

Bit 7: Port x lock pin 7.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[8]

Bit 8: Port x lock pin 8.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[9]

Bit 9: Port x lock pin 9.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[10]

Bit 10: Port x lock pin 10.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[11]

Bit 11: Port x lock pin 11.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[12]

Bit 12: Port x lock pin 12.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[13]

Bit 13: Port x lock pin 13.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[14]

Bit 14: Port x lock pin 14.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[15]

Bit 15: Port x lock pin 15.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCKK

Bit 16: Port x lock bit y (y= 0..15).

Allowed values:
0: NotActive: Port configuration lock key not active
1: Active: Port configuration lock key active

AFRL

GPIO alternate function low register

Offset: 0x20, size: 32, reset: 0x00000000, access: read-write

8/8 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
AFR[EL7] rw				AFR[EL6] rw				AFR[EL5] rw				AFR[EL4] rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
AFR[EL3] rw				AFR[EL2] rw				AFR[EL1] rw				AFR[EL0] rw

Toggle fields

AFR[EL0]

Bits 0-3: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL1]

Bits 4-7: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL2]

Bits 8-11: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL3]

Bits 12-15: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL4]

Bits 16-19: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL5]

Bits 20-23: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL6]

Bits 24-27: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL7]

Bits 28-31: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFRH

GPIO alternate function high register

Offset: 0x24, size: 32, reset: 0x00000000, access: read-write

8/8 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
AFR[EL15] rw				AFR[EL14] rw				AFR[EL13] rw				AFR[EL12] rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
AFR[EL11] rw				AFR[EL10] rw				AFR[EL9] rw				AFR[EL8] rw

Toggle fields

AFR[EL8]

Bits 0-3: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL9]

Bits 4-7: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL10]

Bits 8-11: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL11]

Bits 12-15: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL12]

Bits 16-19: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL13]

Bits 20-23: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL14]

Bits 24-27: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL15]

Bits 28-31: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

BRR

GPIO port bit reset register

Offset: 0x28, size: 32, reset: 0x00000000, access: write-only

16/16 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
BR[15] w	BR[14] w	BR[13] w	BR[12] w	BR[11] w	BR[10] w	BR[9] w	BR[8] w	BR[7] w	BR[6] w	BR[5] w	BR[4] w	BR[3] w	BR[2] w	BR[1] w	BR[0] w

Toggle fields

BR[0]

Bit 0: Port x reset pin 0.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[1]

Bit 1: Port x reset pin 1.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[2]

Bit 2: Port x reset pin 2.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[3]

Bit 3: Port x reset pin 3.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[4]

Bit 4: Port x reset pin 4.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[5]

Bit 5: Port x reset pin 5.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[6]

Bit 6: Port x reset pin 6.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[7]

Bit 7: Port x reset pin 7.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[8]

Bit 8: Port x reset pin 8.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[9]

Bit 9: Port x reset pin 9.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[10]

Bit 10: Port x reset pin 10.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[11]

Bit 11: Port x reset pin 11.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[12]

Bit 12: Port x reset pin 12.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[13]

Bit 13: Port x reset pin 13.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[14]

Bit 14: Port x reset pin 14.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[15]

Bit 15: Port x reset pin 15.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

GPIOE

0x50001000: General-purpose I/Os

177/177 fields covered.

Toggle register map

Offset	Name	31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
0x0	MODER	MODE[15]		MODE[14]		MODE[13]		MODE[12]		MODE[11]		MODE[10]		MODE[9]		MODE[8]		MODE[7]		MODE[6]		MODE[5]		MODE[4]		MODE[3]		MODE[2]		MODE[1]		MODE[0]
0x4	OTYPER																	OT[15]	OT[14]	OT[13]	OT[12]	OT[11]	OT[10]	OT[9]	OT[8]	OT[7]	OT[6]	OT[5]	OT[4]	OT[3]	OT[2]	OT[1]	OT[0]
0x8	OSPEEDR	OSPEED[15]		OSPEED[14]		OSPEED[13]		OSPEED[12]		OSPEED[11]		OSPEED[10]		OSPEED[9]		OSPEED[8]		OSPEED[7]		OSPEED[6]		OSPEED[5]		OSPEED[4]		OSPEED[3]		OSPEED[2]		OSPEED[1]		OSPEED[0]
0xc	PUPDR	PUPD[15]		PUPD[14]		PUPD[13]		PUPD[12]		PUPD[11]		PUPD[10]		PUPD[9]		PUPD[8]		PUPD[7]		PUPD[6]		PUPD[5]		PUPD[4]		PUPD[3]		PUPD[2]		PUPD[1]		PUPD[0]
0x10	IDR																	ID[15]	ID[14]	ID[13]	ID[12]	ID[11]	ID[10]	ID[9]	ID[8]	ID[7]	ID[6]	ID[5]	ID[4]	ID[3]	ID[2]	ID[1]	ID[0]
0x14	ODR																	OD[15]	OD[14]	OD[13]	OD[12]	OD[11]	OD[10]	OD[9]	OD[8]	OD[7]	OD[6]	OD[5]	OD[4]	OD[3]	OD[2]	OD[1]	OD[0]
0x18	BSRR	BR[15]	BR[14]	BR[13]	BR[12]	BR[11]	BR[10]	BR[9]	BR[8]	BR[7]	BR[6]	BR[5]	BR[4]	BR[3]	BR[2]	BR[1]	BR[0]	BS[15]	BS[14]	BS[13]	BS[12]	BS[11]	BS[10]	BS[9]	BS[8]	BS[7]	BS[6]	BS[5]	BS[4]	BS[3]	BS[2]	BS[1]	BS[0]
0x1c	LCKR																LCKK	LCK[15]	LCK[14]	LCK[13]	LCK[12]	LCK[11]	LCK[10]	LCK[9]	LCK[8]	LCK[7]	LCK[6]	LCK[5]	LCK[4]	LCK[3]	LCK[2]	LCK[1]	LCK[0]
0x20	AFRL	AFR[EL7]				AFR[EL6]				AFR[EL5]				AFR[EL4]				AFR[EL3]				AFR[EL2]				AFR[EL1]				AFR[EL0]
0x24	AFRH	AFR[EL15]				AFR[EL14]				AFR[EL13]				AFR[EL12]				AFR[EL11]				AFR[EL10]				AFR[EL9]				AFR[EL8]
0x28	BRR																	BR[15]	BR[14]	BR[13]	BR[12]	BR[11]	BR[10]	BR[9]	BR[8]	BR[7]	BR[6]	BR[5]	BR[4]	BR[3]	BR[2]	BR[1]	BR[0]

Toggle registers

MODER

GPIO port mode register

Offset: 0x0, size: 32, reset: 0xFFFFFFFF, access: read-write

16/16 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
MODE[15] rw		MODE[14] rw		MODE[13] rw		MODE[12] rw		MODE[11] rw		MODE[10] rw		MODE[9] rw		MODE[8] rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
MODE[7] rw		MODE[6] rw		MODE[5] rw		MODE[4] rw		MODE[3] rw		MODE[2] rw		MODE[1] rw		MODE[0] rw

Toggle fields

MODE[0]

Bits 0-1: Port x configuration pin 0.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[1]

Bits 2-3: Port x configuration pin 1.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[2]

Bits 4-5: Port x configuration pin 2.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[3]

Bits 6-7: Port x configuration pin 3.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[4]

Bits 8-9: Port x configuration pin 4.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[5]

Bits 10-11: Port x configuration pin 5.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[6]

Bits 12-13: Port x configuration pin 6.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[7]

Bits 14-15: Port x configuration pin 7.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[8]

Bits 16-17: Port x configuration pin 8.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[9]

Bits 18-19: Port x configuration pin 9.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[10]

Bits 20-21: Port x configuration pin 10.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[11]

Bits 22-23: Port x configuration pin 11.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[12]

Bits 24-25: Port x configuration pin 12.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[13]

Bits 26-27: Port x configuration pin 13.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[14]

Bits 28-29: Port x configuration pin 14.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[15]

Bits 30-31: Port x configuration pin 15.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

OTYPER

GPIO port output type register

Offset: 0x4, size: 32, reset: 0x00000000, access: read-write

16/16 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
OT[15] rw	OT[14] rw	OT[13] rw	OT[12] rw	OT[11] rw	OT[10] rw	OT[9] rw	OT[8] rw	OT[7] rw	OT[6] rw	OT[5] rw	OT[4] rw	OT[3] rw	OT[2] rw	OT[1] rw	OT[0] rw

Toggle fields

OT[0]

Bit 0: Port x configuration pin 0.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[1]

Bit 1: Port x configuration pin 1.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[2]

Bit 2: Port x configuration pin 2.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[3]

Bit 3: Port x configuration pin 3.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[4]

Bit 4: Port x configuration pin 4.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[5]

Bit 5: Port x configuration pin 5.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[6]

Bit 6: Port x configuration pin 6.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[7]

Bit 7: Port x configuration pin 7.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[8]

Bit 8: Port x configuration pin 8.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[9]

Bit 9: Port x configuration pin 9.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[10]

Bit 10: Port x configuration pin 10.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[11]

Bit 11: Port x configuration pin 11.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[12]

Bit 12: Port x configuration pin 12.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[13]

Bit 13: Port x configuration pin 13.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[14]

Bit 14: Port x configuration pin 14.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[15]

Bit 15: Port x configuration pin 15.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OSPEEDR

GPIO port output speed register

Offset: 0x8, size: 32, reset: 0x00000000, access: read-write

16/16 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
OSPEED[15] rw		OSPEED[14] rw		OSPEED[13] rw		OSPEED[12] rw		OSPEED[11] rw		OSPEED[10] rw		OSPEED[9] rw		OSPEED[8] rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
OSPEED[7] rw		OSPEED[6] rw		OSPEED[5] rw		OSPEED[4] rw		OSPEED[3] rw		OSPEED[2] rw		OSPEED[1] rw		OSPEED[0] rw

Toggle fields

OSPEED[0]

Bits 0-1: Port x configuration pin 0.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[1]

Bits 2-3: Port x configuration pin 1.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[2]

Bits 4-5: Port x configuration pin 2.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[3]

Bits 6-7: Port x configuration pin 3.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[4]

Bits 8-9: Port x configuration pin 4.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[5]

Bits 10-11: Port x configuration pin 5.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[6]

Bits 12-13: Port x configuration pin 6.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[7]

Bits 14-15: Port x configuration pin 7.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[8]

Bits 16-17: Port x configuration pin 8.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[9]

Bits 18-19: Port x configuration pin 9.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[10]

Bits 20-21: Port x configuration pin 10.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[11]

Bits 22-23: Port x configuration pin 11.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[12]

Bits 24-25: Port x configuration pin 12.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[13]

Bits 26-27: Port x configuration pin 13.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[14]

Bits 28-29: Port x configuration pin 14.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[15]

Bits 30-31: Port x configuration pin 15.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

PUPDR

GPIO port pull-up/pull-down register

Offset: 0xc, size: 32, reset: 0x00000000, access: read-write

16/16 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
PUPD[15] rw		PUPD[14] rw		PUPD[13] rw		PUPD[12] rw		PUPD[11] rw		PUPD[10] rw		PUPD[9] rw		PUPD[8] rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
PUPD[7] rw		PUPD[6] rw		PUPD[5] rw		PUPD[4] rw		PUPD[3] rw		PUPD[2] rw		PUPD[1] rw		PUPD[0] rw

Toggle fields

PUPD[0]

Bits 0-1: Port x configuration pin 0.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[1]

Bits 2-3: Port x configuration pin 1.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[2]

Bits 4-5: Port x configuration pin 2.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[3]

Bits 6-7: Port x configuration pin 3.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[4]

Bits 8-9: Port x configuration pin 4.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[5]

Bits 10-11: Port x configuration pin 5.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[6]

Bits 12-13: Port x configuration pin 6.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[7]

Bits 14-15: Port x configuration pin 7.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[8]

Bits 16-17: Port x configuration pin 8.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[9]

Bits 18-19: Port x configuration pin 9.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[10]

Bits 20-21: Port x configuration pin 10.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[11]

Bits 22-23: Port x configuration pin 11.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[12]

Bits 24-25: Port x configuration pin 12.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[13]

Bits 26-27: Port x configuration pin 13.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[14]

Bits 28-29: Port x configuration pin 14.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[15]

Bits 30-31: Port x configuration pin 15.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

IDR

GPIO port input data register

Offset: 0x10, size: 32, reset: 0x00000000, access: read-only

16/16 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
ID[15] r	ID[14] r	ID[13] r	ID[12] r	ID[11] r	ID[10] r	ID[9] r	ID[8] r	ID[7] r	ID[6] r	ID[5] r	ID[4] r	ID[3] r	ID[2] r	ID[1] r	ID[0] r

Toggle fields

ID[0]

Bit 0: Port input data pin 0.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[1]

Bit 1: Port input data pin 1.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[2]

Bit 2: Port input data pin 2.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[3]

Bit 3: Port input data pin 3.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[4]

Bit 4: Port input data pin 4.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[5]

Bit 5: Port input data pin 5.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[6]

Bit 6: Port input data pin 6.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[7]

Bit 7: Port input data pin 7.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[8]

Bit 8: Port input data pin 8.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[9]

Bit 9: Port input data pin 9.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[10]

Bit 10: Port input data pin 10.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[11]

Bit 11: Port input data pin 11.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[12]

Bit 12: Port input data pin 12.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[13]

Bit 13: Port input data pin 13.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[14]

Bit 14: Port input data pin 14.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[15]

Bit 15: Port input data pin 15.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ODR

GPIO port output data register

Offset: 0x14, size: 32, reset: 0x00000000, access: read-write

16/16 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
OD[15] rw	OD[14] rw	OD[13] rw	OD[12] rw	OD[11] rw	OD[10] rw	OD[9] rw	OD[8] rw	OD[7] rw	OD[6] rw	OD[5] rw	OD[4] rw	OD[3] rw	OD[2] rw	OD[1] rw	OD[0] rw

Toggle fields

OD[0]

Bit 0: Port output data pin 0.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[1]

Bit 1: Port output data pin 1.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[2]

Bit 2: Port output data pin 2.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[3]

Bit 3: Port output data pin 3.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[4]

Bit 4: Port output data pin 4.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[5]

Bit 5: Port output data pin 5.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[6]

Bit 6: Port output data pin 6.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[7]

Bit 7: Port output data pin 7.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[8]

Bit 8: Port output data pin 8.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[9]

Bit 9: Port output data pin 9.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[10]

Bit 10: Port output data pin 10.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[11]

Bit 11: Port output data pin 11.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[12]

Bit 12: Port output data pin 12.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[13]

Bit 13: Port output data pin 13.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[14]

Bit 14: Port output data pin 14.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[15]

Bit 15: Port output data pin 15.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

BSRR

GPIO port bit set/reset register

Offset: 0x18, size: 32, reset: 0x00000000, access: write-only

32/32 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
BR[15] w	BR[14] w	BR[13] w	BR[12] w	BR[11] w	BR[10] w	BR[9] w	BR[8] w	BR[7] w	BR[6] w	BR[5] w	BR[4] w	BR[3] w	BR[2] w	BR[1] w	BR[0] w
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
BS[15] w	BS[14] w	BS[13] w	BS[12] w	BS[11] w	BS[10] w	BS[9] w	BS[8] w	BS[7] w	BS[6] w	BS[5] w	BS[4] w	BS[3] w	BS[2] w	BS[1] w	BS[0] w

Toggle fields

BS[0]

Bit 0: Port x set pin 0.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[1]

Bit 1: Port x set pin 1.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[2]

Bit 2: Port x set pin 2.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[3]

Bit 3: Port x set pin 3.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[4]

Bit 4: Port x set pin 4.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[5]

Bit 5: Port x set pin 5.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[6]

Bit 6: Port x set pin 6.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[7]

Bit 7: Port x set pin 7.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[8]

Bit 8: Port x set pin 8.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[9]

Bit 9: Port x set pin 9.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[10]

Bit 10: Port x set pin 10.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[11]

Bit 11: Port x set pin 11.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[12]

Bit 12: Port x set pin 12.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[13]

Bit 13: Port x set pin 13.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[14]

Bit 14: Port x set pin 14.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[15]

Bit 15: Port x set pin 15.

Allowed values:
1: Set: Sets the corresponding ODx bit

BR[0]

Bit 16: Port x reset pin 0.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[1]

Bit 17: Port x reset pin 1.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[2]

Bit 18: Port x reset pin 2.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[3]

Bit 19: Port x reset pin 3.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[4]

Bit 20: Port x reset pin 4.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[5]

Bit 21: Port x reset pin 5.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[6]

Bit 22: Port x reset pin 6.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[7]

Bit 23: Port x reset pin 7.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[8]

Bit 24: Port x reset pin 8.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[9]

Bit 25: Port x reset pin 9.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[10]

Bit 26: Port x reset pin 10.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[11]

Bit 27: Port x reset pin 11.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[12]

Bit 28: Port x reset pin 12.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[13]

Bit 29: Port x reset pin 13.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[14]

Bit 30: Port x reset pin 14.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[15]

Bit 31: Port x reset pin 15.

Allowed values:
1: Reset: Resets the corresponding ODx bit

LCKR

GPIO port configuration lock register

Offset: 0x1c, size: 32, reset: 0x00000000, access: read-write

17/17 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
															LCKK rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
LCK[15] rw	LCK[14] rw	LCK[13] rw	LCK[12] rw	LCK[11] rw	LCK[10] rw	LCK[9] rw	LCK[8] rw	LCK[7] rw	LCK[6] rw	LCK[5] rw	LCK[4] rw	LCK[3] rw	LCK[2] rw	LCK[1] rw	LCK[0] rw

Toggle fields

LCK[0]

Bit 0: Port x lock pin 0.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[1]

Bit 1: Port x lock pin 1.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[2]

Bit 2: Port x lock pin 2.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[3]

Bit 3: Port x lock pin 3.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[4]

Bit 4: Port x lock pin 4.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[5]

Bit 5: Port x lock pin 5.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[6]

Bit 6: Port x lock pin 6.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[7]

Bit 7: Port x lock pin 7.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[8]

Bit 8: Port x lock pin 8.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[9]

Bit 9: Port x lock pin 9.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[10]

Bit 10: Port x lock pin 10.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[11]

Bit 11: Port x lock pin 11.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[12]

Bit 12: Port x lock pin 12.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[13]

Bit 13: Port x lock pin 13.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[14]

Bit 14: Port x lock pin 14.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[15]

Bit 15: Port x lock pin 15.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCKK

Bit 16: Port x lock bit y (y= 0..15).

Allowed values:
0: NotActive: Port configuration lock key not active
1: Active: Port configuration lock key active

AFRL

GPIO alternate function low register

Offset: 0x20, size: 32, reset: 0x00000000, access: read-write

8/8 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
AFR[EL7] rw				AFR[EL6] rw				AFR[EL5] rw				AFR[EL4] rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
AFR[EL3] rw				AFR[EL2] rw				AFR[EL1] rw				AFR[EL0] rw

Toggle fields

AFR[EL0]

Bits 0-3: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL1]

Bits 4-7: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL2]

Bits 8-11: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL3]

Bits 12-15: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL4]

Bits 16-19: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL5]

Bits 20-23: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL6]

Bits 24-27: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL7]

Bits 28-31: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFRH

GPIO alternate function high register

Offset: 0x24, size: 32, reset: 0x00000000, access: read-write

8/8 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
AFR[EL15] rw				AFR[EL14] rw				AFR[EL13] rw				AFR[EL12] rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
AFR[EL11] rw				AFR[EL10] rw				AFR[EL9] rw				AFR[EL8] rw

Toggle fields

AFR[EL8]

Bits 0-3: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL9]

Bits 4-7: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL10]

Bits 8-11: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL11]

Bits 12-15: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL12]

Bits 16-19: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL13]

Bits 20-23: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL14]

Bits 24-27: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL15]

Bits 28-31: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

BRR

GPIO port bit reset register

Offset: 0x28, size: 32, reset: 0x00000000, access: write-only

16/16 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
BR[15] w	BR[14] w	BR[13] w	BR[12] w	BR[11] w	BR[10] w	BR[9] w	BR[8] w	BR[7] w	BR[6] w	BR[5] w	BR[4] w	BR[3] w	BR[2] w	BR[1] w	BR[0] w

Toggle fields

BR[0]

Bit 0: Port x reset pin 0.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[1]

Bit 1: Port x reset pin 1.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[2]

Bit 2: Port x reset pin 2.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[3]

Bit 3: Port x reset pin 3.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[4]

Bit 4: Port x reset pin 4.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[5]

Bit 5: Port x reset pin 5.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[6]

Bit 6: Port x reset pin 6.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[7]

Bit 7: Port x reset pin 7.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[8]

Bit 8: Port x reset pin 8.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[9]

Bit 9: Port x reset pin 9.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[10]

Bit 10: Port x reset pin 10.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[11]

Bit 11: Port x reset pin 11.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[12]

Bit 12: Port x reset pin 12.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[13]

Bit 13: Port x reset pin 13.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[14]

Bit 14: Port x reset pin 14.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[15]

Bit 15: Port x reset pin 15.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

GPIOH

0x50001c00: General-purpose I/Os

177/177 fields covered.

Toggle register map

Offset	Name	31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
0x0	MODER	MODE[15]		MODE[14]		MODE[13]		MODE[12]		MODE[11]		MODE[10]		MODE[9]		MODE[8]		MODE[7]		MODE[6]		MODE[5]		MODE[4]		MODE[3]		MODE[2]		MODE[1]		MODE[0]
0x4	OTYPER																	OT[15]	OT[14]	OT[13]	OT[12]	OT[11]	OT[10]	OT[9]	OT[8]	OT[7]	OT[6]	OT[5]	OT[4]	OT[3]	OT[2]	OT[1]	OT[0]
0x8	OSPEEDR	OSPEED[15]		OSPEED[14]		OSPEED[13]		OSPEED[12]		OSPEED[11]		OSPEED[10]		OSPEED[9]		OSPEED[8]		OSPEED[7]		OSPEED[6]		OSPEED[5]		OSPEED[4]		OSPEED[3]		OSPEED[2]		OSPEED[1]		OSPEED[0]
0xc	PUPDR	PUPD[15]		PUPD[14]		PUPD[13]		PUPD[12]		PUPD[11]		PUPD[10]		PUPD[9]		PUPD[8]		PUPD[7]		PUPD[6]		PUPD[5]		PUPD[4]		PUPD[3]		PUPD[2]		PUPD[1]		PUPD[0]
0x10	IDR																	ID[15]	ID[14]	ID[13]	ID[12]	ID[11]	ID[10]	ID[9]	ID[8]	ID[7]	ID[6]	ID[5]	ID[4]	ID[3]	ID[2]	ID[1]	ID[0]
0x14	ODR																	OD[15]	OD[14]	OD[13]	OD[12]	OD[11]	OD[10]	OD[9]	OD[8]	OD[7]	OD[6]	OD[5]	OD[4]	OD[3]	OD[2]	OD[1]	OD[0]
0x18	BSRR	BR[15]	BR[14]	BR[13]	BR[12]	BR[11]	BR[10]	BR[9]	BR[8]	BR[7]	BR[6]	BR[5]	BR[4]	BR[3]	BR[2]	BR[1]	BR[0]	BS[15]	BS[14]	BS[13]	BS[12]	BS[11]	BS[10]	BS[9]	BS[8]	BS[7]	BS[6]	BS[5]	BS[4]	BS[3]	BS[2]	BS[1]	BS[0]
0x1c	LCKR																LCKK	LCK[15]	LCK[14]	LCK[13]	LCK[12]	LCK[11]	LCK[10]	LCK[9]	LCK[8]	LCK[7]	LCK[6]	LCK[5]	LCK[4]	LCK[3]	LCK[2]	LCK[1]	LCK[0]
0x20	AFRL	AFR[EL7]				AFR[EL6]				AFR[EL5]				AFR[EL4]				AFR[EL3]				AFR[EL2]				AFR[EL1]				AFR[EL0]
0x24	AFRH	AFR[EL15]				AFR[EL14]				AFR[EL13]				AFR[EL12]				AFR[EL11]				AFR[EL10]				AFR[EL9]				AFR[EL8]
0x28	BRR																	BR[15]	BR[14]	BR[13]	BR[12]	BR[11]	BR[10]	BR[9]	BR[8]	BR[7]	BR[6]	BR[5]	BR[4]	BR[3]	BR[2]	BR[1]	BR[0]

Toggle registers

MODER

GPIO port mode register

Offset: 0x0, size: 32, reset: 0xFFFFFFFF, access: read-write

16/16 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
MODE[15] rw		MODE[14] rw		MODE[13] rw		MODE[12] rw		MODE[11] rw		MODE[10] rw		MODE[9] rw		MODE[8] rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
MODE[7] rw		MODE[6] rw		MODE[5] rw		MODE[4] rw		MODE[3] rw		MODE[2] rw		MODE[1] rw		MODE[0] rw

Toggle fields

MODE[0]

Bits 0-1: Port x configuration pin 0.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[1]

Bits 2-3: Port x configuration pin 1.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[2]

Bits 4-5: Port x configuration pin 2.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[3]

Bits 6-7: Port x configuration pin 3.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[4]

Bits 8-9: Port x configuration pin 4.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[5]

Bits 10-11: Port x configuration pin 5.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[6]

Bits 12-13: Port x configuration pin 6.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[7]

Bits 14-15: Port x configuration pin 7.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[8]

Bits 16-17: Port x configuration pin 8.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[9]

Bits 18-19: Port x configuration pin 9.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[10]

Bits 20-21: Port x configuration pin 10.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[11]

Bits 22-23: Port x configuration pin 11.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[12]

Bits 24-25: Port x configuration pin 12.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[13]

Bits 26-27: Port x configuration pin 13.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[14]

Bits 28-29: Port x configuration pin 14.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

MODE[15]

Bits 30-31: Port x configuration pin 15.

Allowed values:
0: Input: Input mode
1: Output: General purpose output mode
2: Alternate: Alternate function mode
3: Analog: Analog mode

OTYPER

GPIO port output type register

Offset: 0x4, size: 32, reset: 0x00000000, access: read-write

16/16 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
OT[15] rw	OT[14] rw	OT[13] rw	OT[12] rw	OT[11] rw	OT[10] rw	OT[9] rw	OT[8] rw	OT[7] rw	OT[6] rw	OT[5] rw	OT[4] rw	OT[3] rw	OT[2] rw	OT[1] rw	OT[0] rw

Toggle fields

OT[0]

Bit 0: Port x configuration pin 0.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[1]

Bit 1: Port x configuration pin 1.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[2]

Bit 2: Port x configuration pin 2.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[3]

Bit 3: Port x configuration pin 3.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[4]

Bit 4: Port x configuration pin 4.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[5]

Bit 5: Port x configuration pin 5.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[6]

Bit 6: Port x configuration pin 6.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[7]

Bit 7: Port x configuration pin 7.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[8]

Bit 8: Port x configuration pin 8.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[9]

Bit 9: Port x configuration pin 9.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[10]

Bit 10: Port x configuration pin 10.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[11]

Bit 11: Port x configuration pin 11.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[12]

Bit 12: Port x configuration pin 12.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[13]

Bit 13: Port x configuration pin 13.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[14]

Bit 14: Port x configuration pin 14.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OT[15]

Bit 15: Port x configuration pin 15.

Allowed values:
0: PushPull: Output push-pull (reset state)
1: OpenDrain: Output open-drain

OSPEEDR

GPIO port output speed register

Offset: 0x8, size: 32, reset: 0x00000000, access: read-write

16/16 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
OSPEED[15] rw		OSPEED[14] rw		OSPEED[13] rw		OSPEED[12] rw		OSPEED[11] rw		OSPEED[10] rw		OSPEED[9] rw		OSPEED[8] rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
OSPEED[7] rw		OSPEED[6] rw		OSPEED[5] rw		OSPEED[4] rw		OSPEED[3] rw		OSPEED[2] rw		OSPEED[1] rw		OSPEED[0] rw

Toggle fields

OSPEED[0]

Bits 0-1: Port x configuration pin 0.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[1]

Bits 2-3: Port x configuration pin 1.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[2]

Bits 4-5: Port x configuration pin 2.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[3]

Bits 6-7: Port x configuration pin 3.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[4]

Bits 8-9: Port x configuration pin 4.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[5]

Bits 10-11: Port x configuration pin 5.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[6]

Bits 12-13: Port x configuration pin 6.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[7]

Bits 14-15: Port x configuration pin 7.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[8]

Bits 16-17: Port x configuration pin 8.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[9]

Bits 18-19: Port x configuration pin 9.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[10]

Bits 20-21: Port x configuration pin 10.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[11]

Bits 22-23: Port x configuration pin 11.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[12]

Bits 24-25: Port x configuration pin 12.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[13]

Bits 26-27: Port x configuration pin 13.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[14]

Bits 28-29: Port x configuration pin 14.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

OSPEED[15]

Bits 30-31: Port x configuration pin 15.

Allowed values:
0: LowSpeed: Low speed
1: MediumSpeed: Medium speed
2: HighSpeed: High speed
3: VeryHighSpeed: Very high speed

PUPDR

GPIO port pull-up/pull-down register

Offset: 0xc, size: 32, reset: 0x00000000, access: read-write

16/16 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
PUPD[15] rw		PUPD[14] rw		PUPD[13] rw		PUPD[12] rw		PUPD[11] rw		PUPD[10] rw		PUPD[9] rw		PUPD[8] rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
PUPD[7] rw		PUPD[6] rw		PUPD[5] rw		PUPD[4] rw		PUPD[3] rw		PUPD[2] rw		PUPD[1] rw		PUPD[0] rw

Toggle fields

PUPD[0]

Bits 0-1: Port x configuration pin 0.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[1]

Bits 2-3: Port x configuration pin 1.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[2]

Bits 4-5: Port x configuration pin 2.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[3]

Bits 6-7: Port x configuration pin 3.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[4]

Bits 8-9: Port x configuration pin 4.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[5]

Bits 10-11: Port x configuration pin 5.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[6]

Bits 12-13: Port x configuration pin 6.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[7]

Bits 14-15: Port x configuration pin 7.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[8]

Bits 16-17: Port x configuration pin 8.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[9]

Bits 18-19: Port x configuration pin 9.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[10]

Bits 20-21: Port x configuration pin 10.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[11]

Bits 22-23: Port x configuration pin 11.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[12]

Bits 24-25: Port x configuration pin 12.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[13]

Bits 26-27: Port x configuration pin 13.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[14]

Bits 28-29: Port x configuration pin 14.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

PUPD[15]

Bits 30-31: Port x configuration pin 15.

Allowed values:
0: Floating: No pull-up, pull-down
1: PullUp: Pull-up
2: PullDown: Pull-down

IDR

GPIO port input data register

Offset: 0x10, size: 32, reset: 0x00000000, access: read-only

16/16 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
ID[15] r	ID[14] r	ID[13] r	ID[12] r	ID[11] r	ID[10] r	ID[9] r	ID[8] r	ID[7] r	ID[6] r	ID[5] r	ID[4] r	ID[3] r	ID[2] r	ID[1] r	ID[0] r

Toggle fields

ID[0]

Bit 0: Port input data pin 0.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[1]

Bit 1: Port input data pin 1.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[2]

Bit 2: Port input data pin 2.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[3]

Bit 3: Port input data pin 3.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[4]

Bit 4: Port input data pin 4.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[5]

Bit 5: Port input data pin 5.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[6]

Bit 6: Port input data pin 6.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[7]

Bit 7: Port input data pin 7.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[8]

Bit 8: Port input data pin 8.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[9]

Bit 9: Port input data pin 9.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[10]

Bit 10: Port input data pin 10.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[11]

Bit 11: Port input data pin 11.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[12]

Bit 12: Port input data pin 12.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[13]

Bit 13: Port input data pin 13.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[14]

Bit 14: Port input data pin 14.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ID[15]

Bit 15: Port input data pin 15.

Allowed values:
0: Low: Input is logic low
1: High: Input is logic high

ODR

GPIO port output data register

Offset: 0x14, size: 32, reset: 0x00000000, access: read-write

16/16 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
OD[15] rw	OD[14] rw	OD[13] rw	OD[12] rw	OD[11] rw	OD[10] rw	OD[9] rw	OD[8] rw	OD[7] rw	OD[6] rw	OD[5] rw	OD[4] rw	OD[3] rw	OD[2] rw	OD[1] rw	OD[0] rw

Toggle fields

OD[0]

Bit 0: Port output data pin 0.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[1]

Bit 1: Port output data pin 1.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[2]

Bit 2: Port output data pin 2.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[3]

Bit 3: Port output data pin 3.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[4]

Bit 4: Port output data pin 4.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[5]

Bit 5: Port output data pin 5.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[6]

Bit 6: Port output data pin 6.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[7]

Bit 7: Port output data pin 7.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[8]

Bit 8: Port output data pin 8.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[9]

Bit 9: Port output data pin 9.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[10]

Bit 10: Port output data pin 10.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[11]

Bit 11: Port output data pin 11.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[12]

Bit 12: Port output data pin 12.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[13]

Bit 13: Port output data pin 13.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[14]

Bit 14: Port output data pin 14.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

OD[15]

Bit 15: Port output data pin 15.

Allowed values:
0: Low: Set output to logic low
1: High: Set output to logic high

BSRR

GPIO port bit set/reset register

Offset: 0x18, size: 32, reset: 0x00000000, access: write-only

32/32 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
BR[15] w	BR[14] w	BR[13] w	BR[12] w	BR[11] w	BR[10] w	BR[9] w	BR[8] w	BR[7] w	BR[6] w	BR[5] w	BR[4] w	BR[3] w	BR[2] w	BR[1] w	BR[0] w
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
BS[15] w	BS[14] w	BS[13] w	BS[12] w	BS[11] w	BS[10] w	BS[9] w	BS[8] w	BS[7] w	BS[6] w	BS[5] w	BS[4] w	BS[3] w	BS[2] w	BS[1] w	BS[0] w

Toggle fields

BS[0]

Bit 0: Port x set pin 0.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[1]

Bit 1: Port x set pin 1.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[2]

Bit 2: Port x set pin 2.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[3]

Bit 3: Port x set pin 3.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[4]

Bit 4: Port x set pin 4.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[5]

Bit 5: Port x set pin 5.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[6]

Bit 6: Port x set pin 6.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[7]

Bit 7: Port x set pin 7.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[8]

Bit 8: Port x set pin 8.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[9]

Bit 9: Port x set pin 9.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[10]

Bit 10: Port x set pin 10.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[11]

Bit 11: Port x set pin 11.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[12]

Bit 12: Port x set pin 12.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[13]

Bit 13: Port x set pin 13.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[14]

Bit 14: Port x set pin 14.

Allowed values:
1: Set: Sets the corresponding ODx bit

BS[15]

Bit 15: Port x set pin 15.

Allowed values:
1: Set: Sets the corresponding ODx bit

BR[0]

Bit 16: Port x reset pin 0.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[1]

Bit 17: Port x reset pin 1.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[2]

Bit 18: Port x reset pin 2.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[3]

Bit 19: Port x reset pin 3.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[4]

Bit 20: Port x reset pin 4.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[5]

Bit 21: Port x reset pin 5.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[6]

Bit 22: Port x reset pin 6.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[7]

Bit 23: Port x reset pin 7.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[8]

Bit 24: Port x reset pin 8.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[9]

Bit 25: Port x reset pin 9.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[10]

Bit 26: Port x reset pin 10.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[11]

Bit 27: Port x reset pin 11.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[12]

Bit 28: Port x reset pin 12.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[13]

Bit 29: Port x reset pin 13.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[14]

Bit 30: Port x reset pin 14.

Allowed values:
1: Reset: Resets the corresponding ODx bit

BR[15]

Bit 31: Port x reset pin 15.

Allowed values:
1: Reset: Resets the corresponding ODx bit

LCKR

GPIO port configuration lock register

Offset: 0x1c, size: 32, reset: 0x00000000, access: read-write

17/17 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
															LCKK rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
LCK[15] rw	LCK[14] rw	LCK[13] rw	LCK[12] rw	LCK[11] rw	LCK[10] rw	LCK[9] rw	LCK[8] rw	LCK[7] rw	LCK[6] rw	LCK[5] rw	LCK[4] rw	LCK[3] rw	LCK[2] rw	LCK[1] rw	LCK[0] rw

Toggle fields

LCK[0]

Bit 0: Port x lock pin 0.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[1]

Bit 1: Port x lock pin 1.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[2]

Bit 2: Port x lock pin 2.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[3]

Bit 3: Port x lock pin 3.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[4]

Bit 4: Port x lock pin 4.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[5]

Bit 5: Port x lock pin 5.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[6]

Bit 6: Port x lock pin 6.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[7]

Bit 7: Port x lock pin 7.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[8]

Bit 8: Port x lock pin 8.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[9]

Bit 9: Port x lock pin 9.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[10]

Bit 10: Port x lock pin 10.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[11]

Bit 11: Port x lock pin 11.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[12]

Bit 12: Port x lock pin 12.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[13]

Bit 13: Port x lock pin 13.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[14]

Bit 14: Port x lock pin 14.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCK[15]

Bit 15: Port x lock pin 15.

Allowed values:
0: Unlocked: Port configuration not locked
1: Locked: Port configuration locked

LCKK

Bit 16: Port x lock bit y (y= 0..15).

Allowed values:
0: NotActive: Port configuration lock key not active
1: Active: Port configuration lock key active

AFRL

GPIO alternate function low register

Offset: 0x20, size: 32, reset: 0x00000000, access: read-write

8/8 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
AFR[EL7] rw				AFR[EL6] rw				AFR[EL5] rw				AFR[EL4] rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
AFR[EL3] rw				AFR[EL2] rw				AFR[EL1] rw				AFR[EL0] rw

Toggle fields

AFR[EL0]

Bits 0-3: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL1]

Bits 4-7: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL2]

Bits 8-11: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL3]

Bits 12-15: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL4]

Bits 16-19: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL5]

Bits 20-23: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL6]

Bits 24-27: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL7]

Bits 28-31: Alternate function selection for port x pin y (y = 0..7).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFRH

GPIO alternate function high register

Offset: 0x24, size: 32, reset: 0x00000000, access: read-write

8/8 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
AFR[EL15] rw				AFR[EL14] rw				AFR[EL13] rw				AFR[EL12] rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
AFR[EL11] rw				AFR[EL10] rw				AFR[EL9] rw				AFR[EL8] rw

Toggle fields

AFR[EL8]

Bits 0-3: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL9]

Bits 4-7: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL10]

Bits 8-11: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL11]

Bits 12-15: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL12]

Bits 16-19: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL13]

Bits 20-23: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL14]

Bits 24-27: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

AFR[EL15]

Bits 28-31: Alternate function selection for port x pin y (y = 8..15).

Allowed values:
0: AF0: AF0
1: AF1: AF1
2: AF2: AF2
3: AF3: AF3
4: AF4: AF4
5: AF5: AF5
6: AF6: AF6
7: AF7: AF7

BRR

GPIO port bit reset register

Offset: 0x28, size: 32, reset: 0x00000000, access: write-only

16/16 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
BR[15] w	BR[14] w	BR[13] w	BR[12] w	BR[11] w	BR[10] w	BR[9] w	BR[8] w	BR[7] w	BR[6] w	BR[5] w	BR[4] w	BR[3] w	BR[2] w	BR[1] w	BR[0] w

Toggle fields

BR[0]

Bit 0: Port x reset pin 0.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[1]

Bit 1: Port x reset pin 1.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[2]

Bit 2: Port x reset pin 2.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[3]

Bit 3: Port x reset pin 3.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[4]

Bit 4: Port x reset pin 4.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[5]

Bit 5: Port x reset pin 5.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[6]

Bit 6: Port x reset pin 6.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[7]

Bit 7: Port x reset pin 7.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[8]

Bit 8: Port x reset pin 8.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[9]

Bit 9: Port x reset pin 9.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[10]

Bit 10: Port x reset pin 10.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[11]

Bit 11: Port x reset pin 11.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[12]

Bit 12: Port x reset pin 12.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[13]

Bit 13: Port x reset pin 13.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[14]

Bit 14: Port x reset pin 14.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

BR[15]

Bit 15: Port x reset pin 15.

Allowed values:
0: NoAction: No action on the corresponding ODx bit
1: Reset: Reset the ODx bit

I2C1

0x40005400: Inter-integrated circuit

76/76 fields covered.

Toggle register map

Offset	Name	31	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
0x0	CR1						PECEN	ALERTEN	SMBDEN	SMBHEN	GCEN	WUPEN	NOSTRETCH	SBC	RXDMAEN	TXDMAEN		ANFOFF	DNF				ERRIE	TCIE	STOPIE	NACKIE	ADDRIE	RXIE	TXIE	PE
0x4	CR2			PECBYTE	AUTOEND	RELOAD	NBYTES								NACK	STOP	START	HEAD10R	ADD10	RD_WRN	SADD
0x8	OAR1														OA1EN					OA1MODE	OA1
0xc	OAR2														OA2EN					OA2MSK			OA2
0x10	TIMINGR	PRESC					SCLDEL				SDADEL				SCLH								SCLL
0x14	TIMEOUTR	TEXTEN	TIMEOUTB												TIMOUTEN			TIDLE	TIMEOUTA
0x18	ISR						ADDCODE							DIR	BUSY		ALERT	TIMEOUT	PECERR	OVR	ARLO	BERR	TCR	TC	STOPF	NACKF	ADDR	RXNE	TXIS	TXE
0x1c	ICR																ALERTCF	TIMOUTCF	PECCF	OVRCF	ARLOCF	BERRCF			STOPCF	NACKCF	ADDRCF
0x20	PECR																						PEC
0x24	RXDR																						RXDATA
0x28	TXDR																						TXDATA

Toggle registers

CR1

Control register 1

Offset: 0x0, size: 32, reset: 0x00000000, access: read-write

20/20 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
								PECEN rw	ALERTEN rw	SMBDEN rw	SMBHEN rw	GCEN rw	WUPEN rw	NOSTRETCH rw	SBC rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
RXDMAEN rw	TXDMAEN rw		ANFOFF rw	DNF rw				ERRIE rw	TCIE rw	STOPIE rw	NACKIE rw	ADDRIE rw	RXIE rw	TXIE rw	PE rw

Toggle fields

PE

Bit 0: Peripheral enable.

Allowed values:
0: Disabled: Peripheral disabled
1: Enabled: Peripheral enabled

TXIE

Bit 1: TX Interrupt enable.

Allowed values:
0: Disabled: Transmit (TXIS) interrupt disabled
1: Enabled: Transmit (TXIS) interrupt enabled

RXIE

Bit 2: RX Interrupt enable.

Allowed values:
0: Disabled: Receive (RXNE) interrupt disabled
1: Enabled: Receive (RXNE) interrupt enabled

ADDRIE

Bit 3: Address match interrupt enable (slave only).

Allowed values:
0: Disabled: Address match (ADDR) interrupts disabled
1: Enabled: Address match (ADDR) interrupts enabled

NACKIE

Bit 4: Not acknowledge received interrupt enable.

Allowed values:
0: Disabled: Not acknowledge (NACKF) received interrupts disabled
1: Enabled: Not acknowledge (NACKF) received interrupts enabled

STOPIE

Bit 5: STOP detection Interrupt enable.

Allowed values:
0: Disabled: Stop detection (STOPF) interrupt disabled
1: Enabled: Stop detection (STOPF) interrupt enabled

TCIE

Bit 6: Transfer Complete interrupt enable.

Allowed values:
0: Disabled: Transfer Complete interrupt disabled
1: Enabled: Transfer Complete interrupt enabled

ERRIE

Bit 7: Error interrupts enable.

Allowed values:
0: Disabled: Error detection interrupts disabled
1: Enabled: Error detection interrupts enabled

DNF

Bits 8-11: Digital noise filter.

Allowed values:
0: NoFilter: Digital filter disabled
1: Filter1: Digital filter enabled and filtering capability up to 1 tI2CCLK
2: Filter2: Digital filter enabled and filtering capability up to 2 tI2CCLK
3: Filter3: Digital filter enabled and filtering capability up to 3 tI2CCLK
4: Filter4: Digital filter enabled and filtering capability up to 4 tI2CCLK
5: Filter5: Digital filter enabled and filtering capability up to 5 tI2CCLK
6: Filter6: Digital filter enabled and filtering capability up to 6 tI2CCLK
7: Filter7: Digital filter enabled and filtering capability up to 7 tI2CCLK
8: Filter8: Digital filter enabled and filtering capability up to 8 tI2CCLK
9: Filter9: Digital filter enabled and filtering capability up to 9 tI2CCLK
10: Filter10: Digital filter enabled and filtering capability up to 10 tI2CCLK
11: Filter11: Digital filter enabled and filtering capability up to 11 tI2CCLK
12: Filter12: Digital filter enabled and filtering capability up to 12 tI2CCLK
13: Filter13: Digital filter enabled and filtering capability up to 13 tI2CCLK
14: Filter14: Digital filter enabled and filtering capability up to 14 tI2CCLK
15: Filter15: Digital filter enabled and filtering capability up to 15 tI2CCLK

ANFOFF

Bit 12: Analog noise filter OFF.

Allowed values:
0: Enabled: Analog noise filter enabled
1: Disabled: Analog noise filter disabled

TXDMAEN

Bit 14: DMA transmission requests enable.

Allowed values:
0: Disabled: DMA mode disabled for transmission
1: Enabled: DMA mode enabled for transmission

RXDMAEN

Bit 15: DMA reception requests enable.

Allowed values:
0: Disabled: DMA mode disabled for reception
1: Enabled: DMA mode enabled for reception

SBC

Bit 16: Slave byte control.

Allowed values:
0: Disabled: Slave byte control disabled
1: Enabled: Slave byte control enabled

NOSTRETCH

Bit 17: Clock stretching disable.

Allowed values:
0: Enabled: Clock stretching enabled
1: Disabled: Clock stretching disabled

WUPEN

Bit 18: Wakeup from STOP enable.

Allowed values:
0: Disabled: Wakeup from Stop mode disabled
1: Enabled: Wakeup from Stop mode enabled

GCEN

Bit 19: General call enable.

Allowed values:
0: Disabled: General call disabled. Address 0b00000000 is NACKed
1: Enabled: General call enabled. Address 0b00000000 is ACKed

SMBHEN

Bit 20: SMBus Host address enable.

Allowed values:
0: Disabled: Host address disabled. Address 0b0001000x is NACKed
1: Enabled: Host address enabled. Address 0b0001000x is ACKed

SMBDEN

Bit 21: SMBus Device Default address enable.

Allowed values:
0: Disabled: Device default address disabled. Address 0b1100001x is NACKed
1: Enabled: Device default address enabled. Address 0b1100001x is ACKed

ALERTEN

Bit 22: SMBUS alert enable.

Allowed values:
0: Disabled: In device mode (SMBHEN=Disabled) Releases SMBA pin high and Alert Response Address Header disabled (0001100x) followed by NACK. In host mode (SMBHEN=Enabled) SMBus Alert pin (SMBA) not supported
1: Enabled: In device mode (SMBHEN=Disabled) Drives SMBA pin low and Alert Response Address Header enabled (0001100x) followed by ACK.In host mode (SMBHEN=Enabled) SMBus Alert pin (SMBA) supported

PECEN

Bit 23: PEC enable.

Allowed values:
0: Disabled: PEC calculation disabled
1: Enabled: PEC calculation enabled

CR2

Control register 2

Offset: 0x4, size: 32, reset: 0x00000000, access: read-write

11/11 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
					PECBYTE rw	AUTOEND rw	RELOAD rw	NBYTES rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
NACK rw	STOP rw	START rw	HEAD10R rw	ADD10 rw	RD_WRN rw	SADD rw

Toggle fields

SADD

Bits 0-9: Slave address bit (master mode).

Allowed values: 0x0-0x3ff

RD_WRN

Bit 10: Transfer direction (master mode).

Allowed values:
0: Write: Master requests a write transfer
1: Read: Master requests a read transfer

ADD10

Bit 11: 10-bit addressing mode (master mode).

Allowed values:
0: Bit7: The master operates in 7-bit addressing mode
1: Bit10: The master operates in 10-bit addressing mode

HEAD10R

Bit 12: 10-bit address header only read direction (master receiver mode).

Allowed values:
0: Complete: The master sends the complete 10 bit slave address read sequence
1: Partial: The master only sends the 1st 7 bits of the 10 bit address, followed by Read direction

START

Bit 13: Start generation.

Allowed values:
0: NoStart: No Start generation
1: Start: Restart/Start generation

STOP

Bit 14: Stop generation (master mode).

Allowed values:
0: NoStop: No Stop generation
1: Stop: Stop generation after current byte transfer

NACK

Bit 15: NACK generation (slave mode).

Allowed values:
0: Ack: an ACK is sent after current received byte
1: Nack: a NACK is sent after current received byte

NBYTES

Bits 16-23: Number of bytes.

Allowed values: 0x0-0xff

RELOAD

Bit 24: NBYTES reload mode.

Allowed values:
0: Completed: The transfer is completed after the NBYTES data transfer (STOP or RESTART will follow)
1: NotCompleted: The transfer is not completed after the NBYTES data transfer (NBYTES will be reloaded)

AUTOEND

Bit 25: Automatic end mode (master mode).

Allowed values:
0: Software: Software end mode: TC flag is set when NBYTES data are transferred, stretching SCL low
1: Automatic: Automatic end mode: a STOP condition is automatically sent when NBYTES data are transferred

PECBYTE

Bit 26: Packet error checking byte.

Allowed values:
0: NoPec: No PEC transfer
1: Pec: PEC transmission/reception is requested

OAR1

Own address register 1

Offset: 0x8, size: 32, reset: 0x00000000, access: read-write

3/3 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
OA1EN rw					OA1MODE rw	OA1 rw

Toggle fields

OA1

Bits 0-9: Interface address.

Allowed values: 0x0-0x3ff

OA1MODE

Bit 10: Own Address 1 10-bit mode.

Allowed values:
0: Bit7: Own address 1 is a 7-bit address
1: Bit10: Own address 1 is a 10-bit address

OA1EN

Bit 15: Own Address 1 enable.

Allowed values:
0: Disabled: Own address 1 disabled. The received slave address OA1 is NACKed
1: Enabled: Own address 1 enabled. The received slave address OA1 is ACKed

OAR2

Own address register 2

Offset: 0xc, size: 32, reset: 0x00000000, access: read-write

3/3 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
OA2EN rw					OA2MSK rw			OA2 rw

Toggle fields

OA2

Bits 1-7: Interface address.

Allowed values: 0x0-0x7f

OA2MSK

Bits 8-10: Own Address 2 masks.

Allowed values:
0: NoMask: No mask
1: Mask1: OA2[1] is masked and don’t care. Only OA2[7:2] are compared
2: Mask2: OA2[2:1] are masked and don’t care. Only OA2[7:3] are compared
3: Mask3: OA2[3:1] are masked and don’t care. Only OA2[7:4] are compared
4: Mask4: OA2[4:1] are masked and don’t care. Only OA2[7:5] are compared
5: Mask5: OA2[5:1] are masked and don’t care. Only OA2[7:6] are compared
6: Mask6: OA2[6:1] are masked and don’t care. Only OA2[7] is compared.
7: Mask7: OA2[7:1] are masked and don’t care. No comparison is done, and all (except reserved) 7-bit received addresses are acknowledged

OA2EN

Bit 15: Own Address 2 enable.

Allowed values:
0: Disabled: Own address 2 disabled. The received slave address OA2 is NACKed
1: Enabled: Own address 2 enabled. The received slave address OA2 is ACKed

TIMINGR

Timing register

Offset: 0x10, size: 32, reset: 0x00000000, access: read-write

5/5 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
PRESC rw								SCLDEL rw				SDADEL rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
SCLH rw								SCLL rw

Offset: 0x14, size: 32, reset: 0x00000000, access: read-write

5/5 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
TEXTEN rw				TIMEOUTB rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
TIMOUTEN rw			TIDLE rw	TIMEOUTA rw

Toggle fields

TIMEOUTA

Bits 0-11: Bus timeout A.

Allowed values: 0x0-0xfff

TIDLE

Bit 12: Idle clock timeout detection.

Allowed values:
0: Disabled: TIMEOUTA is used to detect SCL low timeout
1: Enabled: TIMEOUTA is used to detect both SCL and SDA high timeout (bus idle condition)

TIMOUTEN

Bit 15: Clock timeout enable.

Allowed values:
0: Disabled: SCL timeout detection is disabled
1: Enabled: SCL timeout detection is enabled

TIMEOUTB

Bits 16-27: Bus timeout B.

Allowed values: 0x0-0xfff

TEXTEN

Bit 31: Extended clock timeout enable.

Allowed values:
0: Disabled: Extended clock timeout detection is disabled
1: Enabled: Extended clock timeout detection is enabled

ISR

Interrupt and Status register

Offset: 0x18, size: 32, reset: 0x00000001, access: Unspecified

17/17 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
								ADDCODE r							DIR r
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
BUSY r		ALERT r	TIMEOUT r	PECERR r	OVR r	ARLO r	BERR r	TCR r	TC r	STOPF r	NACKF r	ADDR r	RXNE r	TXIS rw	TXE rw

Toggle fields

TXE

Bit 0: Transmit data register empty (transmitters).

Allowed values:
0: NotEmpty: TXDR register not empty
1: Empty: TXDR register empty

TXIS

Bit 1: Transmit interrupt status (transmitters).

Allowed values:
0: NotEmpty: The TXDR register is not empty
1: Empty: The TXDR register is empty and the data to be transmitted must be written in the TXDR register

RXNE

Bit 2: Receive data register not empty (receivers).

Allowed values:
0: Empty: The RXDR register is empty
1: NotEmpty: Received data is copied into the RXDR register, and is ready to be read

ADDR

Bit 3: Address matched (slave mode).

Allowed values:
0: NotMatch: Adress mismatched or not received
1: Match: Received slave address matched with one of the enabled slave addresses

NACKF

Bit 4: Not acknowledge received flag.

Allowed values:
0: NoNack: No NACK has been received
1: Nack: NACK has been received

STOPF

Bit 5: Stop detection flag.

Allowed values:
0: NoStop: No Stop condition detected
1: Stop: Stop condition detected

TC

Bit 6: Transfer Complete (master mode).

Allowed values:
0: NotComplete: Transfer is not complete
1: Complete: NBYTES has been transfered

TCR

Bit 7: Transfer Complete Reload.

Allowed values:
0: NotComplete: Transfer is not complete
1: Complete: NBYTES has been transfered

BERR

Bit 8: Bus error.

Allowed values:
0: NoError: No bus error
1: Error: Misplaced Start and Stop condition is detected

ARLO

Bit 9: Arbitration lost.

Allowed values:
0: NotLost: No arbitration lost
1: Lost: Arbitration lost

OVR

Bit 10: Overrun/Underrun (slave mode).

Allowed values:
0: NoOverrun: No overrun/underrun error occurs
1: Overrun: slave mode with NOSTRETCH=1, when an overrun/underrun error occurs

PECERR

Bit 11: PEC Error in reception.

Allowed values:
0: Match: Received PEC does match with PEC register
1: NoMatch: Received PEC does not match with PEC register

TIMEOUT

Bit 12: Timeout or t_low detection flag.

Allowed values:
0: NoTimeout: No timeout occured
1: Timeout: Timeout occured

ALERT

Bit 13: SMBus alert.

Allowed values:
0: NoAlert: SMBA alert is not detected
1: Alert: SMBA alert event is detected on SMBA pin

BUSY

Bit 15: Bus busy.

Allowed values:
0: NotBusy: No communication is in progress on the bus
1: Busy: A communication is in progress on the bus

DIR

Bit 16: Transfer direction (Slave mode).

Allowed values:
0: Write: Write transfer, slave enters receiver mode
1: Read: Read transfer, slave enters transmitter mode

ADDCODE

Bits 17-23: Address match code (Slave mode).

Allowed values: 0x0-0x7f

ICR

Interrupt clear register

Offset: 0x1c, size: 32, reset: 0x00000000, access: write-only

9/9 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
		ALERTCF w	TIMOUTCF w	PECCF w	OVRCF w	ARLOCF w	BERRCF w			STOPCF w	NACKCF w	ADDRCF w

Toggle fields

ADDRCF

Bit 3: Address Matched flag clear.

Allowed values:
1: Clear: Clears the ADDR flag in ISR register

NACKCF

Bit 4: Not Acknowledge flag clear.

Allowed values:
1: Clear: Clears the NACK flag in ISR register

STOPCF

Bit 5: Stop detection flag clear.

Allowed values:
1: Clear: Clears the STOP flag in ISR register

BERRCF

Bit 8: Bus error flag clear.

Allowed values:
1: Clear: Clears the BERR flag in ISR register

ARLOCF

Bit 9: Arbitration lost flag clear.

Allowed values:
1: Clear: Clears the ARLO flag in ISR register

OVRCF

Bit 10: Overrun/Underrun flag clear.

Allowed values:
1: Clear: Clears the OVR flag in ISR register

PECCF

Bit 11: PEC Error flag clear.

Allowed values:
1: Clear: Clears the PEC flag in ISR register

TIMOUTCF

Bit 12: Timeout detection flag clear.

Allowed values:
1: Clear: Clears the TIMOUT flag in ISR register

ALERTCF

Bit 13: Alert flag clear.

Allowed values:
1: Clear: Clears the ALERT flag in ISR register

PECR

PEC register

Offset: 0x20, size: 32, reset: 0x00000000, access: read-only

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
								PEC r

Toggle fields

PEC

Bits 0-7: Packet error checking register.

Allowed values: 0x0-0xff

RXDR

Receive data register

Offset: 0x24, size: 32, reset: 0x00000000, access: read-only

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
								RXDATA r

Toggle fields

RXDATA

Bits 0-7: 8-bit receive data.

Allowed values: 0x0-0xff

TXDR

Transmit data register

Offset: 0x28, size: 32, reset: 0x00000000, access: read-write

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
								TXDATA rw

Toggle fields

TXDATA

Bits 0-7: 8-bit transmit data.

Allowed values: 0x0-0xff

IWDG

0x40003000: Independent watchdog

7/7 fields covered.

Toggle register map

Offset	Name	15	11	2	1	0
0x0	KR	KEY
0x4	PR			PR
0x8	RLR		RL
0xc	SR			WVU	RVU	PVU
0x10	WINR		WIN

Toggle registers

KR

Key register

Offset: 0x0, size: 32, reset: 0x00000000, access: write-only

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
KEY w

Toggle fields

KEY

Bits 0-15: Key value (write only, read 0x0000).

Allowed values:
21845: Enable: Enable access to PR, RLR and WINR registers (0x5555)
43690: Reset: Reset the watchdog value (0xAAAA)
52428: Start: Start the watchdog (0xCCCC)

PR

Prescaler register

Offset: 0x4, size: 32, reset: 0x00000000, access: read-write

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
													PR rw

Toggle fields

PR

Bits 0-2: Prescaler divider.

Allowed values:
0: DivideBy4: Divider /4
1: DivideBy8: Divider /8
2: DivideBy16: Divider /16
3: DivideBy32: Divider /32
4: DivideBy64: Divider /64
5: DivideBy128: Divider /128
6: DivideBy256: Divider /256

RLR

Reload register

Offset: 0x8, size: 32, reset: 0x00000FFF, access: read-write

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
				RL rw

Toggle fields

RL

Bits 0-11: Watchdog counter reload value.

Allowed values: 0x0-0xfff

SR

Status register

Offset: 0xc, size: 32, reset: 0x00000000, access: read-only

3/3 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
													WVU r	RVU r	PVU r

Toggle fields

PVU

Bit 0: Watchdog prescaler value update.

RVU

Bit 1: Watchdog counter reload value update.

WVU

Bit 2: Watchdog counter window value update.

WINR

Window register

Offset: 0x10, size: 32, reset: 0x00000FFF, access: read-write

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
				WIN rw

Toggle fields

WIN

Bits 0-11: Watchdog counter window value.

Allowed values: 0x0-0xfff

LPTIM

0x40007c00: Low power timer

40/40 fields covered.

Toggle register map

Offset	Name	24	23	22	21	20	19	18	15	11	7	6	5	4	3	2	1	0
0x0	ISR											DOWN	UP	ARROK	CMPOK	EXTTRIG	ARRM	CMPM
0x4	ICR											DOWNCF	UPCF	ARROKCF	CMPOKCF	EXTTRIGCF	ARRMCF	CMPMCF
0x8	IER											DOWNIE	UPIE	ARROKIE	CMPOKIE	EXTTRIGIE	ARRMIE	CMPMIE
0xc	CFGR	ENC	COUNTMODE	PRELOAD	WAVPOL	WAVE	TIMOUT	TRIGEN	TRIGSEL	PRESC	TRGFLT			CKFLT		CKPOL		CKSEL
0x10	CR															CNTSTRT	SNGSTRT	ENABLE
0x14	CMP								CMP
0x18	ARR								ARR
0x1c	CNT								CNT

Toggle registers

ISR

Interrupt and Status Register

Offset: 0x0, size: 32, reset: 0x00000000, access: read-only

7/7 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
									DOWN r	UP r	ARROK r	CMPOK r	EXTTRIG r	ARRM r	CMPM r

Toggle fields

CMPM

Bit 0: Compare match.

Allowed values:
1: Set: Compare match

ARRM

Bit 1: Autoreload match.

Allowed values:
1: Set: Autoreload match

EXTTRIG

Bit 2: External trigger edge event.

Allowed values:
1: Set: External trigger edge event

CMPOK

Bit 3: Compare register update OK.

Allowed values:
1: Set: Compare register update OK

ARROK

Bit 4: Autoreload register update OK.

Allowed values:
1: Set: Autoreload register update OK

UP

Bit 5: Counter direction change down to up.

Allowed values:
1: Set: Counter direction change down to up

DOWN

Bit 6: Counter direction change up to down.

Allowed values:
1: Set: Counter direction change up to down

ICR

Interrupt Clear Register

Offset: 0x4, size: 32, reset: 0x00000000, access: write-only

7/7 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
									DOWNCF w	UPCF w	ARROKCF w	CMPOKCF w	EXTTRIGCF w	ARRMCF w	CMPMCF w

Toggle fields

CMPMCF

Bit 0: compare match Clear Flag.

Allowed values:
1: Clear: Compare match Clear Flag

ARRMCF

Bit 1: Autoreload match Clear Flag.

Allowed values:
1: Clear: Autoreload match Clear Flag

EXTTRIGCF

Bit 2: External trigger valid edge Clear Flag.

Allowed values:
1: Clear: External trigger valid edge Clear Flag

CMPOKCF

Bit 3: Compare register update OK Clear Flag.

Allowed values:
1: Clear: Compare register update OK Clear Flag

ARROKCF

Bit 4: Autoreload register update OK Clear Flag.

Allowed values:
1: Clear: Autoreload register update OK Clear Flag

UPCF

Bit 5: Direction change to UP Clear Flag.

Allowed values:
1: Clear: Direction change to up Clear Flag

DOWNCF

Bit 6: Direction change to down Clear Flag.

Allowed values:
1: Clear: Direction change to down Clear Flag

IER

Interrupt Enable Register

Offset: 0x8, size: 32, reset: 0x00000000, access: read-write

7/7 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
									DOWNIE rw	UPIE rw	ARROKIE rw	CMPOKIE rw	EXTTRIGIE rw	ARRMIE rw	CMPMIE rw

Toggle fields

CMPMIE

Bit 0: Compare match Interrupt Enable.

Allowed values:
0: Disabled: CMPM interrupt disabled
1: Enabled: CMPM interrupt enabled

ARRMIE

Bit 1: Autoreload match Interrupt Enable.

Allowed values:
0: Disabled: ARRM interrupt disabled
1: Enabled: ARRM interrupt enabled

EXTTRIGIE

Bit 2: External trigger valid edge Interrupt Enable.

Allowed values:
0: Disabled: EXTTRIG interrupt disabled
1: Enabled: EXTTRIG interrupt enabled

CMPOKIE

Bit 3: Compare register update OK Interrupt Enable.

Allowed values:
0: Disabled: CMPOK interrupt disabled
1: Enabled: CMPOK interrupt enabled

ARROKIE

Bit 4: Autoreload register update OK Interrupt Enable.

Allowed values:
0: Disabled: ARROK interrupt disabled
1: Enabled: ARROK interrupt enabled

UPIE

Bit 5: Direction change to UP Interrupt Enable.

Allowed values:
0: Disabled: UP interrupt disabled
1: Enabled: UP interrupt enabled

DOWNIE

Bit 6: Direction change to down Interrupt Enable.

Allowed values:
0: Disabled: DOWN interrupt disabled
1: Enabled: DOWN interrupt enabled

CFGR

Configuration Register

Offset: 0xc, size: 32, reset: 0x00000000, access: read-write

13/13 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
							ENC rw	COUNTMODE rw	PRELOAD rw	WAVPOL rw	WAVE rw	TIMOUT rw	TRIGEN rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
TRIGSEL rw				PRESC rw				TRGFLT rw			CKFLT rw		CKPOL rw		CKSEL rw

Toggle fields

CKSEL

Bit 0: Clock selector.

Allowed values:
0: Internal: LPTIM is clocked by internal clock source (APB clock or any of the embedded oscillators)
1: External: LPTIM is clocked by an external clock source through the LPTIM external Input1

CKPOL

Bits 1-2: Clock Polarity.

Allowed values:
0: RisingEdge: The rising edge is the active edge used for counting. If LPTIM is in encoder mode: Encoder sub-mode 1 is active.
1: FallingEdge: The falling edge is the active edge used for counting. If LPTIM is in encoder mode: Encoder sub-mode 2 is active.
2: BothEdges: Both edges are active edge. If LPTIM is in encoder mode: Encoder sub-mode 3 is active.

CKFLT

Bits 3-4: Configurable digital filter for external clock.

Allowed values:
0: Immediate: Any external clock signal level change is considered as a valid transition
1: Clocks2: External clock signal level change must be stable for at least 2 clock periods before it is considered as valid transition
2: Clocks4: External clock signal level change must be stable for at least 4 clock periods before it is considered as valid transition
3: Clocks8: External clock signal level change must be stable for at least 8 clock periods before it is considered as valid transition

TRGFLT

Bits 6-7: Configurable digital filter for trigger.

Allowed values:
0: Immediate: Any trigger active level change is considered as a valid trigger
1: Clocks2: Trigger active level change must be stable for at least 2 clock periods before it is considered as valid trigger
2: Clocks4: Trigger active level change must be stable for at least 4 clock periods before it is considered as valid trigger
3: Clocks8: Trigger active level change must be stable for at least 8 clock periods before it is considered as valid trigger

PRESC

Bits 9-11: Clock prescaler.

Allowed values:
0: Div1: /1
1: Div2: /2
2: Div4: /4
3: Div8: /8
4: Div16: /16
5: Div32: /32
6: Div64: /64
7: Div128: /128

TRIGSEL

Bits 13-15: Trigger selector.

Allowed values:
0: Trig0: lptim_ext_trig0
1: Trig1: lptim_ext_trig1
2: Trig2: lptim_ext_trig2
3: Trig3: lptim_ext_trig3
4: Trig4: lptim_ext_trig4
5: Trig5: lptim_ext_trig5
6: Trig6: lptim_ext_trig6
7: Trig7: lptim_ext_trig7

TRIGEN

Bits 17-18: Trigger enable and polarity.

Allowed values:
0: SW: Software trigger (counting start is initiated by software)
1: RisingEdge: Rising edge is the active edge
2: FallingEdge: Falling edge is the active edge
3: BothEdges: Both edges are active edges

TIMOUT

Bit 19: Timeout enable.

Allowed values:
0: Disabled: A trigger event arriving when the timer is already started will be ignored
1: Enabled: A trigger event arriving when the timer is already started will reset and restart the counter

WAVE

Bit 20: Waveform shape.

Allowed values:
0: Inactive: Deactivate Set-once mode, PWM / One Pulse waveform (depending on OPMODE bit)
1: Active: Activate the Set-once mode

WAVPOL

Bit 21: Waveform shape polarity.

Allowed values:
0: Positive: The LPTIM output reflects the compare results between LPTIM_ARR and LPTIM_CMP registers
1: Negative: The LPTIM output reflects the inverse of the compare results between LPTIM_ARR and LPTIM_CMP registers

PRELOAD

Bit 22: Registers update mode.

Allowed values:
0: Immediate: Registers are updated after each APB bus write access
1: EndOfPeriod: Registers are updated at the end of the current LPTIM period

COUNTMODE

Bit 23: counter mode enabled.

Allowed values:
0: Internal: The counter is incremented following each internal clock pulse
1: External: The counter is incremented following each valid clock pulse on the LPTIM external Input1

ENC

Bit 24: Encoder mode enable.

Allowed values:
0: Disabled: Encoder mode disabled
1: Enabled: Encoder mode enabled

CR

Control Register

Offset: 0x10, size: 32, reset: 0x00000000, access: read-write

3/3 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
													CNTSTRT rw	SNGSTRT rw	ENABLE rw

Toggle fields

ENABLE

Bit 0: LPTIM Enable.

Allowed values:
0: Disabled: LPTIM is disabled
1: Enabled: LPTIM is enabled

SNGSTRT

Bit 1: LPTIM start in single mode.

Allowed values:
1: Start: LPTIM start in Single mode

CNTSTRT

Bit 2: Timer start in continuous mode.

Allowed values:
1: Start: Timer start in Continuous mode

CMP

Compare Register

Offset: 0x14, size: 32, reset: 0x00000000, access: read-write

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
CMP rw

Toggle fields

CMP

Bits 0-15: Compare value..

Allowed values: 0x0-0xffff

ARR

Autoreload Register

Offset: 0x18, size: 32, reset: 0x00000001, access: read-write

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
ARR rw

Toggle fields

ARR

Bits 0-15: Auto reload value..

Allowed values: 0x0-0xffff

CNT

Counter Register

Offset: 0x1c, size: 32, reset: 0x00000000, access: read-only

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
CNT r

Toggle fields

CNT

Bits 0-15: Counter value..

LPUART1

0x40004800: Lower power Universal asynchronous receiver transmitter

72/72 fields covered.

Toggle register map

Offset	Name	31	28	25	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
0x0	CR1		M1	DEAT			DEDT						CMIE	MME	M0	WAKE	PCE	PS	PEIE	TXEIE	TCIE	RXNEIE	IDLEIE	TE	RE	UESM	UE
0x4	CR2	ADD						MSBFIRST	DATAINV	TXINV	RXINV	SWAP		STOP		CLKEN							ADDM7
0x8	CR3				WUFIE	WUS						DEP	DEM	DDRE	OVRDIS		CTSIE	CTSE	RTSE	DMAT	DMAR			HDSEL			EIE
0xc	BRR							BRR				BRR
0x18	RQR																							RXFRQ	MMRQ	SBKRQ
0x1c	ISR				REACK	TEACK	WUF	RWU	SBKF	CMF	BUSY						CTS	CTSIF		TXE	TC	RXNE	IDLE	ORE	NF	FE	PE
0x20	ICR						WUCF			CMCF								CTSCF			TCCF		IDLECF	ORECF	NCF	FECF	PECF
0x24	RDR																		RDR
0x28	TDR																		TDR

Toggle registers

CR1

Control register 1

Offset: 0x0, size: 32, reset: 0x00000000, access: read-write

18/18 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
			M1 rw			DEAT rw					DEDT rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
	CMIE rw	MME rw	M0 rw	WAKE rw	PCE rw	PS rw	PEIE rw	TXEIE rw	TCIE rw	RXNEIE rw	IDLEIE rw	TE rw	RE rw	UESM rw	UE rw

Toggle fields

UE

Bit 0: USART enable.

Allowed values:
0: Disabled: UART is disabled
1: Enabled: UART is enabled

UESM

Bit 1: USART enable in Stop mode.

Allowed values:
0: Disabled: USART not able to wake up the MCU from Stop mode
1: Enabled: USART able to wake up the MCU from Stop mode

RE

Bit 2: Receiver enable.

Allowed values:
0: Disabled: Receiver is disabled
1: Enabled: Receiver is enabled

TE

Bit 3: Transmitter enable.

Allowed values:
0: Disabled: Transmitter is disabled
1: Enabled: Transmitter is enabled

IDLEIE

Bit 4: IDLE interrupt enable.

Allowed values:
0: Disabled: Interrupt is disabled
1: Enabled: Interrupt is generated whenever IDLE=1 in the ISR register

RXNEIE

Bit 5: RXNE interrupt enable.

Allowed values:
0: Disabled: Interrupt is disabled
1: Enabled: Interrupt is generated whenever ORE=1 or RXNE=1 in the ISR register

TCIE

Bit 6: Transmission complete interrupt enable.

Allowed values:
0: Disabled: Interrupt is disabled
1: Enabled: Interrupt is generated whenever TC=1 in the ISR register

TXEIE

Bit 7: interrupt enable.

Allowed values:
0: Disabled: Interrupt is disabled
1: Enabled: Interrupt is generated whenever TXE=1 in the ISR register

PEIE

Bit 8: PE interrupt enable.

Allowed values:
0: Disabled: Interrupt is disabled
1: Enabled: Interrupt is generated whenever PE=1 in the ISR register

PS

Bit 9: Parity selection.

Allowed values:
0: Even: Even parity
1: Odd: Odd parity

PCE

Bit 10: Parity control enable.

Allowed values:
0: Disabled: Parity control disabled
1: Enabled: Parity control enabled

WAKE

Bit 11: Receiver wakeup method.

Allowed values:
0: Idle: Idle line
1: Address: Address mask

M0

Bit 12: Word length.

Allowed values:
0: Bit8: 1 start bit, 8 data bits, n stop bits
1: Bit9: 1 start bit, 9 data bits, n stop bits

MME

Bit 13: Mute mode enable.

Allowed values:
0: Disabled: Receiver in active mode permanently
1: Enabled: Receiver can switch between mute mode and active mode

CMIE

Bit 14: Character match interrupt enable.

Allowed values:
0: Disabled: Interrupt is disabled
1: Enabled: Interrupt is generated when the CMF bit is set in the ISR register

DEDT

Bits 16-20: Driver Enable de-assertion time.

Allowed values: 0x0-0x1f

DEAT

Bits 21-25: Driver Enable assertion time.

Allowed values: 0x0-0x1f

M1

Bit 28: Word length.

Allowed values:
0: M0: Use M0 to set the data bits
1: Bit7: 1 start bit, 7 data bits, n stop bits

CR2

Control register 2

Offset: 0x4, size: 32, reset: 0x00000000, access: read-write

9/9 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
ADD rw												MSBFIRST rw	DATAINV rw	TXINV rw	RXINV rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
SWAP rw		STOP rw		CLKEN rw							ADDM7 rw

Toggle fields

ADDM7

Bit 4: 7-bit Address Detection/4-bit Address Detection.

Allowed values:
0: Bit4: 4-bit address detection
1: Bit7: 7-bit address detection

CLKEN

Bit 11: Clock enable.

Allowed values:
0: Disabled: CK pin disabled
1: Enabled: CK pin enabled

STOP

Bits 12-13: STOP bits.

Allowed values:
0: Stop1: 1 stop bit
1: Stop0p5: 0.5 stop bit
2: Stop2: 2 stop bit
3: Stop1p5: 1.5 stop bit

SWAP

Bit 15: Swap TX/RX pins.

Allowed values:
0: Standard: TX/RX pins are used as defined in standard pinout
1: Swapped: The TX and RX pins functions are swapped

RXINV

Bit 16: RX pin active level inversion.

Allowed values:
0: Standard: RX pin signal works using the standard logic levels
1: Inverted: RX pin signal values are inverted

TXINV

Bit 17: TX pin active level inversion.

Allowed values:
0: Standard: TX pin signal works using the standard logic levels
1: Inverted: TX pin signal values are inverted

DATAINV

Bit 18: Binary data inversion.

Allowed values:
0: Positive: Logical data from the data register are send/received in positive/direct logic
1: Negative: Logical data from the data register are send/received in negative/inverse logic

MSBFIRST

Bit 19: Most significant bit first.

Allowed values:
0: LSB: data is transmitted/received with data bit 0 first, following the start bit
1: MSB: data is transmitted/received with MSB (bit 7/8/9) first, following the start bit

ADD

Bits 24-31: Address of the USART node.

Allowed values: 0x0-0xff

CR3

Control register 3

Offset: 0x8, size: 32, reset: 0x00000000, access: read-write

13/13 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
									WUFIE rw	WUS rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
DEP rw	DEM rw	DDRE rw	OVRDIS rw		CTSIE rw	CTSE rw	RTSE rw	DMAT rw	DMAR rw			HDSEL rw			EIE rw

Toggle fields

EIE

Bit 0: Error interrupt enable.

Allowed values:
0: Disabled: Interrupt is inhibited
1: Enabled: An interrupt is generated when FE=1 or ORE=1 or NF=1 in the ISR register

HDSEL

Bit 3: Half-duplex selection.

Allowed values:
0: NotSelected: Half duplex mode is not selected
1: Selected: Half duplex mode is selected

DMAR

Bit 6: DMA enable receiver.

Allowed values:
0: Disabled: DMA mode is disabled for reception
1: Enabled: DMA mode is enabled for reception

DMAT

Bit 7: DMA enable transmitter.

Allowed values:
0: Disabled: DMA mode is disabled for transmission
1: Enabled: DMA mode is enabled for transmission

RTSE

Bit 8: RTS enable.

Allowed values:
0: Disabled: RTS hardware flow control disabled
1: Enabled: RTS output enabled, data is only requested when there is space in the receive buffer

CTSE

Bit 9: CTS enable.

Allowed values:
0: Disabled: CTS hardware flow control disabled
1: Enabled: CTS mode enabled, data is only transmitted when the CTS input is asserted

CTSIE

Bit 10: CTS interrupt enable.

Allowed values:
0: Disabled: Interrupt is inhibited
1: Enabled: An interrupt is generated whenever CTSIF=1 in the ISR register

OVRDIS

Bit 12: Overrun Disable.

Allowed values:
0: Enabled: Overrun Error Flag, ORE, is set when received data is not read before receiving new data
1: Disabled: Overrun functionality is disabled. If new data is received while the RXNE flag is still set the ORE flag is not set and the new received data overwrites the previous content of the RDR register

DDRE

Bit 13: DMA Disable on Reception Error.

Allowed values:
0: NotDisabled: DMA is not disabled in case of reception error
1: Disabled: DMA is disabled following a reception error

DEM

Bit 14: Driver enable mode.

Allowed values:
0: Disabled: DE function is disabled
1: Enabled: The DE signal is output on the RTS pin

DEP

Bit 15: Driver enable polarity selection.

Allowed values:
0: High: DE signal is active high
1: Low: DE signal is active low

WUS

Bits 20-21: Wakeup from Stop mode interrupt flag selection.

Allowed values:
0: Address: WUF active on address match
2: Start: WuF active on Start bit detection
3: RXNE: WUF active on RXNE

WUFIE

Bit 22: Wakeup from Stop mode interrupt enable.

Allowed values:
0: Disabled: Interrupt is inhibited
1: Enabled: An USART interrupt is generated whenever WUF=1 in the ISR register

BRR

Baud rate register

Offset: 0xc, size: 32, reset: 0x00000000, access: read-write

1/1 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
												BRR rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
BRR rw

Toggle fields

BRR

Bits 0-19: BRR.

Allowed values: 0x0-0xfffff

RQR

Request register

Offset: 0x18, size: 32, reset: 0x00000000, access: write-only

3/3 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
												RXFRQ w	MMRQ w	SBKRQ w

Toggle fields

SBKRQ

Bit 1: Send break request.

Allowed values:
1: Break: sets the SBKF flag and request to send a BREAK on the line, as soon as the transmit machine is available

MMRQ

Bit 2: Mute mode request.

Allowed values:
1: Mute: Puts the USART in mute mode and sets the RWU flag

RXFRQ

Bit 3: Receive data flush request.

Allowed values:
1: Discard: clears the RXNE flag. This allows to discard the received data without reading it, and avoid an overrun condition

ISR

Interrupt & status register

Offset: 0x1c, size: 32, reset: 0x000000C0, access: read-only

17/17 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
									REACK r	TEACK r	WUF r	RWU r	SBKF r	CMF r	BUSY r
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
					CTS r	CTSIF r		TXE r	TC r	RXNE r	IDLE r	ORE r	NF r	FE r	PE r

Toggle fields

PE

Bit 0: PE.

FE

Bit 1: FE.

NF

Bit 2: NF.

ORE

Bit 3: ORE.

IDLE

Bit 4: IDLE.

RXNE

Bit 5: RXNE.

TC

Bit 6: TC.

TXE

Bit 7: TXE.

CTSIF

Bit 9: CTSIF.

CTS

Bit 10: CTS.

BUSY

Bit 16: BUSY.

CMF

Bit 17: CMF.

SBKF

Bit 18: SBKF.

RWU

Bit 19: RWU.

WUF

Bit 20: WUF.

TEACK

Bit 21: TEACK.

REACK

Bit 22: REACK.

ICR

Interrupt flag clear register

Offset: 0x20, size: 32, reset: 0x00000000, access: write-only

9/9 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
											WUCF w			CMCF w
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
						CTSCF w			TCCF w		IDLECF w	ORECF w	NCF w	FECF w	PECF w

Toggle fields

PECF

Bit 0: Parity error clear flag.

Allowed values:
1: Clear: Clears the PE flag in the ISR register

FECF

Bit 1: Framing error clear flag.

Allowed values:
1: Clear: Clears the FE flag in the ISR register

NCF

Bit 2: Noise detected clear flag.

Allowed values:
1: Clear: Clears the NF flag in the ISR register

ORECF

Bit 3: Overrun error clear flag.

Allowed values:
1: Clear: Clears the ORE flag in the ISR register

IDLECF

Bit 4: Idle line detected clear flag.

Allowed values:
1: Clear: Clears the IDLE flag in the ISR register

TCCF

Bit 6: Transmission complete clear flag.

Allowed values:
1: Clear: Clears the TC flag in the ISR register

CTSCF

Bit 9: CTS clear flag.

Allowed values:
1: Clear: Clears the CTSIF flag in the ISR register

CMCF

Bit 17: Character match clear flag.

Allowed values:
1: Clear: Clears the CMF flag in the ISR register

WUCF

Bit 20: Wakeup from Stop mode clear flag.

Allowed values:
1: Clear: Clears the WUF flag in the ISR register

RDR

Receive data register

Offset: 0x24, size: 32, reset: 0x00000000, access: read-only

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
							RDR r

Toggle fields

RDR

Bits 0-8: Receive data value.

Allowed values: 0x0-0x1ff

TDR

Transmit data register

Offset: 0x28, size: 32, reset: 0x00000000, access: read-write

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
							TDR rw

Toggle fields

TDR

Bits 0-8: Transmit data value.

Allowed values: 0x0-0x1ff

NVIC

0xe000e100: Nested Vectored Interrupt Controller

36/36 fields covered.

Toggle register map

Offset	Name	31	23	15	7
0x0	ISER	SETENA		SETENA
0x80	ICER	CLRENA		CLRENA
0x100	ISPR	SETPEND		SETPEND
0x180	ICPR	CLRPEND		CLRPEND
0x300	IPR0	PRI_3	PRI_2	PRI_1	PRI_0
0x304	IPR1	PRI_7	PRI_6	PRI_5	PRI_4
0x308	IPR2	PRI_11	PRI_10	PRI_9	PRI_8
0x30c	IPR3	PRI_15	PRI_14	PRI_13	PRI_12
0x310	IPR4	PRI_19	PRI_18	PRI_17	PRI_16
0x314	IPR5	PRI_23	PRI_22	PRI_21	PRI_20
0x318	IPR6	PRI_27	PRI_26	PRI_25	PRI_24
0x31c	IPR7	PRI_31	PRI_30	PRI_29	PRI_28

Toggle registers

ISER

Interrupt Set Enable Register

Offset: 0x0, size: 32, reset: 0x00000000, access: read-write

1/1 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
SETENA rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
SETENA rw

Toggle fields

SETENA

Bits 0-31: SETENA.

Allowed values: 0x0-0xffffffff

ICER

Interrupt Clear Enable Register

Offset: 0x80, size: 32, reset: 0x00000000, access: read-write

1/1 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
CLRENA rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
CLRENA rw

Toggle fields

CLRENA

Bits 0-31: CLRENA.

Allowed values: 0x0-0xffffffff

ISPR

Interrupt Set-Pending Register

Offset: 0x100, size: 32, reset: 0x00000000, access: read-write

1/1 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
SETPEND rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
SETPEND rw

Toggle fields

SETPEND

Bits 0-31: SETPEND.

Allowed values: 0x0-0xffffffff

ICPR

Interrupt Clear-Pending Register

Offset: 0x180, size: 32, reset: 0x00000000, access: read-write

1/1 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
CLRPEND rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
CLRPEND rw

Toggle fields

CLRPEND

Bits 0-31: CLRPEND.

Allowed values: 0x0-0xffffffff

IPR0

Interrupt Priority Register 0

Offset: 0x300, size: 32, reset: 0x00000000, access: read-write

4/4 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
PRI_3 rw								PRI_2 rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
PRI_1 rw								PRI_0 rw

Toggle fields

PRI_0

Bits 0-7: priority for interrupt 0.

Allowed values: 0x0-0xff

PRI_1

Offset	Name	31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
0x0	CR																LPDS		LPRUN	DS_EE_KOFF	VOS		FWU	ULP	DBP	PLS			PVDE	CSBF	CWUF	PDDS	LPSDSR
0x4	CSR																						EWUP3	EWUP2	EWUP1			REGLPF	VOSF	VREFINTRDYF	PVDO	SBF	WUF

Toggle registers

CR

power control register

Offset: 0x0, size: 32, reset: 0x00001000, access: read-write

13/13 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
															LPDS rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
	LPRUN rw	DS_EE_KOFF rw	VOS rw		FWU rw	ULP rw	DBP rw	PLS rw			PVDE rw	CSBF rw	CWUF rw	PDDS rw	LPSDSR rw

Toggle fields

LPSDSR

Bit 0: Low-power deepsleep/Sleep/Low-power run.

Allowed values:
0: MAIN_MODE: Voltage regulator on during Deepsleep/Sleep/Low-power run mode
1: LOW_POWER_MODE: Voltage regulator in low-power mode during Deepsleep/Sleep/Low-power run mode

PDDS

Bit 1: Power down deepsleep.

Allowed values:
0: STOP_MODE: Enter Stop mode when the CPU enters deepsleep
1: STANDBY_MODE: Enter Standby mode when the CPU enters deepsleep

CWUF

Bit 2: Clear wakeup flag.

Allowed values:
1: Clear: Clear the WUF Wakeup flag after 2 system clock cycles

CSBF

Bit 3: Clear standby flag.

Allowed values:
1: Clear: Clear the SBF Standby flag

PVDE

Bit 4: Power voltage detector enable.

Allowed values:
0: Disabled: PVD Disabled
1: Enabled: PVD Enabled

PLS

Bits 5-7: PVD level selection.

Allowed values:
0: V1_9: 1.9 V
1: V2_1: 2.1 V
2: V2_3: 2.3 V
3: V2_5: 2.5 V
4: V2_7: 2.7 V
5: V2_9: 2.9 V
6: V3_1: 3.1 V
7: External: External input analog voltage (Compare internally to VREFINT)

DBP

Bit 8: Disable backup domain write protection.

Allowed values:
0: Disabled: Access to RTC, RTC Backup and RCC CSR registers disabled
1: Enabled: Access to RTC, RTC Backup and RCC CSR registers enabled

ULP

Bit 9: Ultra-low-power mode.

Allowed values:
0: Enabled: VREFINT is on in low-power mode
1: Disabled: VREFINT is off in low-power mode

FWU

Bit 10: Fast wakeup.

Allowed values:
0: Disabled: Low-power modes exit occurs only when VREFINT is ready
1: Enabled: VREFINT start up time is ignored when exiting low-power modes

VOS

Bits 11-12: Voltage scaling range selection.

Allowed values:
1: V1_8: 1.8 V (range 1)
2: V1_5: 1.5 V (range 2)
3: V1_2: 1.2 V (range 3)

DS_EE_KOFF

Bit 13: Deep sleep mode with Flash memory kept off.

Allowed values:
0: NVMWakeUp: NVM woken up when exiting from Deepsleep mode even if the bit RUN_PD is set
1: NVMSleep: NVM not woken up when exiting from low-power mode (if the bit RUN_PD is set)

LPRUN

Bit 14: Low power run mode.

Allowed values:
0: MAIN_MODE: Voltage regulator in Main mode in Low-power run mode
1: LOW_POWER_MODE: Voltage regulator in low-power mode in Low-power run mode

LPDS

Bit 16: Regulator in Low-power deepsleep mode.

Allowed values:
0: MAIN_MODE: Voltage regulator in Main mode during Deepsleep mode (Stop mode)
1: LOW_POWER_MODE: Voltage regulator switches to low-power mode when the CPU enters Deepsleep mode (Stop mode)

CSR

power control/status register

Offset: 0x4, size: 32, reset: 0x00000000, access: Unspecified

9/9 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
					EWUP3 N/A	EWUP2 rw	EWUP1 rw			REGLPF r	VOSF r	VREFINTRDYF r	PVDO r	SBF r	WUF r

Toggle fields

WUF

Bit 0: Wakeup flag.

Allowed values:
0: NoWakeupEvent: No wakeup event occurred
1: WakeupEvent: A wakeup event was received from the WKUP pin or from the RTC alarm (Alarm A or Alarm B), RTC Tamper event, RTC TimeStamp event or RTC Wakeup)

SBF

Bit 1: Standby flag.

Allowed values:
0: NoStandbyEvent: Device has not been in Standby mode
1: StandbyEvent: Device has been in Standby mode

PVDO

Bit 2: PVD output.

Allowed values:
0: AboveThreshold: VDD is higher than the PVD threshold selected with the PLS[2:0] bits
1: BelowThreshold: VDD is lower than the PVD threshold selected with the PLS[2:0] bits

VREFINTRDYF

Bit 3: Internal voltage reference ready flag.

Allowed values:
0: NotReady: VREFINT is OFF
1: Ready: VREFINT is ready

VOSF

Bit 4: Voltage Scaling select flag.

Allowed values:
0: Ready: Regulator is ready in the selected voltage range
1: NotReady: Regulator voltage output is changing to the required VOS level

REGLPF

Bit 5: Regulator LP flag.

Allowed values:
0: Ready: Regulator is ready in Main mode
1: NotReady: Regulator voltage is in low-power mode

EWUP1

Bit 8: Enable WKUP pin 1.

Allowed values:
0: Disabled: WKUP pin 1 is used for general purpose I/Os. An event on the WKUP pin 1 does not wakeup the device from Standby mode
1: Enabled: WKUP pin 1 is used for wakeup from Standby mode and forced in input pull down configuration (rising edge on WKUP pin 1 wakes-up the system from Standby mode)

EWUP2

Bit 9: Enable WKUP pin 2.

Allowed values:
0: Disabled: WKUP pin 2 is used for general purpose I/Os. An event on the WKUP pin 2 does not wakeup the device from Standby mode
1: Enabled: WKUP pin 2 is used for wakeup from Standby mode and forced in input pull down configuration (rising edge on WKUP pin 2 wakes-up the system from Standby mode)

EWUP3

Bit 10: Enable WKUP pin 3.

Allowed values:
0: Disabled: WKUP pin 3 is used for general purpose I/Os. An event on the WKUP pin 3 does not wakeup the device from Standby mode
1: Enabled: WKUP pin 3 is used for wakeup from Standby mode and forced in input pull down configuration (rising edge on WKUP pin 3wakes-up the system from Standby mode)

RCC

0x40021000: Reset and clock control

177/178 fields covered.

Toggle register map

Offset	Name	31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	5	4	3	2	1	0
0x0	CR							PLLRDY	PLLON			RTCPRE		CSSHSEON	HSEBYP	HSERDY	HSEON							MSIRDY	MSION		HSI16OUTEN	HSI16DIVF	HSI16DIVEN	HSI16RDYF	HSI16KERON	HSI16ON
0x4	ICSCR	MSITRIM								MSICAL								MSIRANGE			HSI16TRIM					HSI16CAL
0xc	CFGR		MCOPRE				MCOSEL			PLLDIV		PLLMUL					PLLSRC	STOPWUCK		PPRE2			PPRE1			HPRE			SWS		SW
0x10	CIER																									CSSLSE	MSIRDYIE	PLLRDYIE	HSERDYIE	HSI16RDYIE	LSERDYIE	LSIRDYIE
0x14	CIFR																								CSSHSEF	CSSLSEF	MSIRDYF	PLLRDYF	HSERDYF	HSI16RDYF	LSERDYF	LSIRDYF
0x18	CICR																								CSSHSEC	CSSLSEC	MSIRDYC	PLLRDYC	HSERDYC	HSI16RDYC	LSERDYC	LSIRDYC
0x1c	IOPRSTR																									IOPHRST		IOPERST	IOPDRST	IOPCRST	IOPBRST	IOPARST
0x20	AHBRSTR								CRYPRST												CRCRST				MIFRST							DMARST
0x24	APB2RSTR										DBGRST								USART1RST		SPI1RST			ADCRST			TIM22RST			TIM21RST		SYSCFGRST
0x28	APB1RSTR	LPTIM1RST	I2C3		PWRRST	CRCRST					I2C2RST	I2C1RST	USART5RST	USART4RST	LPUART1RST	USART2RST			SPI2RST			WWDGRST					TIM7RST	TIM6RST			TIM3RST	TIM2RST
0x2c	IOPENR																									IOPHEN		IOPEEN	IOPDEN	IOPCEN	IOPBEN	IOPAEN
0x30	AHBENR								CRYPEN												CRCEN				MIFEN							DMAEN
0x34	APB2ENR										DBGEN								USART1EN		SPI1EN			ADCEN		FWEN	TIM22EN			TIM21EN		SYSCFGEN
0x38	APB1ENR	LPTIM1EN	I2C3EN		PWREN						I2C2EN	I2C1EN	USART5EN	USART4EN	LPUART1EN	USART2EN			SPI2EN			WWDGEN					TIM7EN	TIM6EN				TIM2EN
0x3c	IOPSMEN																									IOPHSMEN		IOPESMEN	IOPDSMEN	IOPCSMEN	IOPBSMEN	IOPASMEN
0x40	AHBSMENR																				CRCSMEN			SRAMSMEN	MIFSMEN							DMASMEN
0x44	APB2SMENR										DBGSMEN								USART1SMEN		SPI1SMEN			ADCSMEN			TIM22SMEN			TIM21SMEN		SYSCFGSMEN
0x48	APB1SMENR	LPTIM1SMEN	I2C3SMEN		PWRSMEN	CRSSMEN					I2C2SMEN	I2C1SMEN	USART5SMEN	USART4SMEN	LPUART1SMEN	USART2SMEN			SPI2SMEN			WWDGSMEN					TIM7SMEN	TIM6SMEN			TIM3SMEN	TIM2SMEN
0x4c	CCIPR													LPTIM1SEL		I2C3SEL				I2C1SEL		LPUART1SEL							USART2SEL		USART1SEL
0x50	CSR	LPWRRSTF	WWDGRSTF	IWDGRSTF	SFTRSTF	PORRSTF	PINRSTF	OBLRSTF	FWRSTF	RMVF				RTCRST	RTCEN	RTCSEL			CSSLSED	CSSLSEON	LSEDRV		LSEBYP	LSERDY	LSEON						LSIRDY	LSION

Toggle registers

CR

Clock control register

Offset: 0x0, size: 32, reset: 0x00000300, access: Unspecified

15/15 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
						PLLRDY r	PLLON rw			RTCPRE rw		CSSHSEON rw	HSEBYP rw	HSERDY r	HSEON rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
						MSIRDY r	MSION rw			HSI16OUTEN rw	HSI16DIVF r	HSI16DIVEN rw	HSI16RDYF rw	HSI16KERON r	HSI16ON rw

Toggle fields

HSI16ON

Bit 0: 16 MHz high-speed internal clock enable.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

HSI16KERON

Bit 1: High-speed internal clock enable bit for some IP kernels.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

HSI16RDYF

Bit 2: Internal high-speed clock ready flag.

Allowed values:
0: NotReady: HSI 16 MHz oscillator not ready
1: Ready: HSI 16 MHz oscillator ready

HSI16DIVEN

Bit 3: HSI16DIVEN.

Allowed values:
0: NotDivided: no 16 MHz HSI division requested
1: Div4: 16 MHz HSI division by 4 requested

HSI16DIVF

Bit 4: HSI16DIVF.

Allowed values:
0: NotDivided: 16 MHz HSI clock not divided
1: Div4: 16 MHz HSI clock divided by 4

HSI16OUTEN

Bit 5: 16 MHz high-speed internal clock output enable.

Allowed values:
0: Disabled: HSI output clock disabled
1: Enabled: HSI output clock enabled

MSION

Bit 8: MSI clock enable bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

MSIRDY

Bit 9: MSI clock ready flag.

Allowed values:
0: NotReady: Oscillator is not stable
1: Ready: Oscillator is stable

HSEON

Bit 16: HSE clock enable bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

HSERDY

Bit 17: HSE clock ready flag.

Allowed values:
0: NotReady: Oscillator is not stable
1: Ready: Oscillator is stable

HSEBYP

Bit 18: HSE clock bypass bit.

Allowed values:
0: NotBypassed: HSE oscillator not bypassed
1: Bypassed: HSE oscillator bypassed

CSSHSEON

Bit 19: Clock security system on HSE enable bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

RTCPRE

Bits 20-21: TC/LCD prescaler.

Allowed values:
0: Div2: HSE divided by 2
1: Div4: HSE divided by 4
2: Div8: HSE divided by 8
3: Div16: HSE divided by 16

PLLON

Bit 24: PLL enable bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

PLLRDY

Bit 25: PLL clock ready flag.

Allowed values:
0: Unlocked: PLL unlocked
1: Locked: PLL locked

ICSCR

Internal clock sources calibration register

Offset: 0x4, size: 32, reset: 0x0000B000, access: Unspecified

5/5 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
MSITRIM rw								MSICAL r
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
MSIRANGE rw			HSI16TRIM rw					HSI16CAL r

Offset: 0xc, size: 32, reset: 0x00000000, access: Unspecified

11/11 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
	MCOPRE rw				MCOSEL rw			PLLDIV rw		PLLMUL rw					PLLSRC rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
STOPWUCK rw		PPRE2 rw			PPRE1 rw			HPRE rw				SWS r		SW rw

Toggle fields

SW

Bits 0-1: System clock switch.

Allowed values:
0: MSI: MSI oscillator used as system clock
1: HSI16: HSI oscillator used as system clock
2: HSE: HSE oscillator used as system clock
3: PLL: PLL used as system clock

SWS

Bits 2-3: System clock switch status.

Allowed values:
0: MSI: MSI oscillator used as system clock
1: HSI16: HSI oscillator used as system clock
2: HSE: HSE oscillator used as system clock
3: PLL: PLL used as system clock

HPRE

Bits 4-7: AHB prescaler.

Allowed values:
0: Div1: system clock not divided
8: Div2: system clock divided by 2
9: Div4: system clock divided by 4
10: Div8: system clock divided by 8
11: Div16: system clock divided by 16
12: Div64: system clock divided by 64
13: Div128: system clock divided by 128
14: Div256: system clock divided by 256
15: Div512: system clock divided by 512

PPRE1

Bits 8-10: APB low-speed prescaler (APB1).

Allowed values:
0: Div1: HCLK not divided
4: Div2: HCLK divided by 2
5: Div4: HCLK divided by 4
6: Div8: HCLK divided by 8
7: Div16: HCLK divided by 16

PPRE2

Bits 11-13: APB high-speed prescaler (APB2).

Allowed values:
0: Div1: HCLK not divided
4: Div2: HCLK divided by 2
5: Div4: HCLK divided by 4
6: Div8: HCLK divided by 8
7: Div16: HCLK divided by 16

STOPWUCK

Bit 15: Wake-up from stop clock selection.

Allowed values:
0: MSI: Internal 64 KHz to 4 MHz (MSI) oscillator selected as wake-up from Stop clock
1: HSI16: Internal 16 MHz (HSI) oscillator selected as wake-up from Stop clock (or HSI16/4 if HSI16DIVEN=1)

PLLSRC

Bit 16: PLL entry clock source.

Allowed values:
0: HSI16: HSI selected as PLL input clock
1: HSE: HSE selected as PLL input clock

PLLMUL

Bits 18-21: PLL multiplication factor.

Allowed values:
0: Mul3: PLL clock entry x 3
1: Mul4: PLL clock entry x 4
2: Mul6: PLL clock entry x 6
3: Mul8: PLL clock entry x 8
4: Mul12: PLL clock entry x 12
5: Mul16: PLL clock entry x 16
6: Mul24: PLL clock entry x 24
7: Mul32: PLL clock entry x 32
8: Mul48: PLL clock entry x 48

PLLDIV

Bits 22-23: PLL output division.

Allowed values:
1: Div2: PLLVCO / 2
2: Div3: PLLVCO / 3
3: Div4: PLLVCO / 4

MCOSEL

Bits 24-26: Microcontroller clock output selection.

Allowed values:
0: NoClock: No clock
1: SYSCLK: SYSCLK clock selected
2: HSI16: HSI oscillator clock selected
3: MSI: MSI oscillator clock selected
4: HSE: HSE oscillator clock selected
5: PLL: PLL clock selected
6: LSI: LSI oscillator clock selected
7: LSE: LSE oscillator clock selected

MCOPRE

Bits 28-30: Microcontroller clock output prescaler.

Allowed values:
0: Div1: No division
1: Div2: Division by 2
2: Div4: Division by 4
3: Div8: Division by 8
4: Div16: Division by 16

CIER

Clock interrupt enable register

Offset: 0x10, size: 32, reset: 0x00000000, access: read-only

7/7 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
								CSSLSE r		MSIRDYIE r	PLLRDYIE r	HSERDYIE r	HSI16RDYIE r	LSERDYIE r	LSIRDYIE r

Toggle fields

LSIRDYIE

Bit 0: LSI ready interrupt flag.

Allowed values:
0: Disabled: Ready interrupt disabled
1: Enabled: Ready interrupt enabled

LSERDYIE

Bit 1: LSE ready interrupt flag.

Allowed values:
0: Disabled: Ready interrupt disabled
1: Enabled: Ready interrupt enabled

HSI16RDYIE

Bit 2: HSI16 ready interrupt flag.

Allowed values:
0: Disabled: Ready interrupt disabled
1: Enabled: Ready interrupt enabled

HSERDYIE

Bit 3: HSE ready interrupt flag.

Allowed values:
0: Disabled: Ready interrupt disabled
1: Enabled: Ready interrupt enabled

PLLRDYIE

Bit 4: PLL ready interrupt flag.

Allowed values:
0: Disabled: Ready interrupt disabled
1: Enabled: Ready interrupt enabled

MSIRDYIE

Bit 5: MSI ready interrupt flag.

Allowed values:
0: Disabled: Ready interrupt disabled
1: Enabled: Ready interrupt enabled

CSSLSE

Bit 7: LSE CSS interrupt flag.

Allowed values:
0: Disabled: LSE CSS interrupt disabled
1: Enabled: LSE CSS interrupt enabled

CIFR

Clock interrupt flag register

Offset: 0x14, size: 32, reset: 0x00000000, access: read-only

8/8 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
							CSSHSEF r	CSSLSEF r		MSIRDYF r	PLLRDYF r	HSERDYF r	HSI16RDYF r	LSERDYF r	LSIRDYF r

Toggle fields

LSIRDYF

Bit 0: LSI ready interrupt flag.

Allowed values:
0: NotInterrupted: No clock ready interrupt
1: Interrupted: Clock ready interrupt

LSERDYF

Bit 1: LSE ready interrupt flag.

Allowed values:
0: NotInterrupted: No clock ready interrupt
1: Interrupted: Clock ready interrupt

HSI16RDYF

Bit 2: HSI16 ready interrupt flag.

Allowed values:
0: NotInterrupted: No clock ready interrupt
1: Interrupted: Clock ready interrupt

HSERDYF

Bit 3: HSE ready interrupt flag.

Allowed values:
0: NotInterrupted: No clock ready interrupt
1: Interrupted: Clock ready interrupt

PLLRDYF

Bit 4: PLL ready interrupt flag.

Allowed values:
0: NotInterrupted: No clock ready interrupt
1: Interrupted: Clock ready interrupt

MSIRDYF

Bit 5: MSI ready interrupt flag.

Allowed values:
0: NotInterrupted: No clock ready interrupt
1: Interrupted: Clock ready interrupt

CSSLSEF

Bit 7: LSE Clock Security System Interrupt flag.

Allowed values:
0: NoFailure: No failure detected on LSE clock failure
1: Failure: Failure detected on LSE clock failure

CSSHSEF

Bit 8: Clock Security System Interrupt flag.

Allowed values:
0: NoClock: No clock security interrupt caused by HSE clock failure
1: Clock: Clock security interrupt caused by HSE clock failure

CICR

Clock interrupt clear register

Offset: 0x18, size: 32, reset: 0x00000000, access: write-only

8/8 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
							CSSHSEC w	CSSLSEC w		MSIRDYC w	PLLRDYC w	HSERDYC w	HSI16RDYC w	LSERDYC w	LSIRDYC w

Toggle fields

LSIRDYC

Bit 0: LSI ready Interrupt clear.

Allowed values:
1: Clear: Clear interrupt flag

LSERDYC

Bit 1: LSE ready Interrupt clear.

Allowed values:
1: Clear: Clear interrupt flag

HSI16RDYC

Bit 2: HSI16 ready Interrupt clear.

Allowed values:
1: Clear: Clear interrupt flag

HSERDYC

Bit 3: HSE ready Interrupt clear.

Allowed values:
1: Clear: Clear interrupt flag

PLLRDYC

Bit 4: PLL ready Interrupt clear.

Allowed values:
1: Clear: Clear interrupt flag

MSIRDYC

Bit 5: MSI ready Interrupt clear.

Allowed values:
1: Clear: Clear interrupt flag

CSSLSEC

Bit 7: LSE Clock Security System Interrupt clear.

Allowed values:
1: Clear: Clear interrupt flag

CSSHSEC

Bit 8: Clock Security System Interrupt clear.

Allowed values:
1: Clear: Clear interrupt flag

IOPRSTR

GPIO reset register

Offset: 0x1c, size: 32, reset: 0x00000000, access: read-write

6/6 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
								IOPHRST rw			IOPERST rw	IOPDRST rw	IOPCRST rw	IOPBRST rw	IOPARST rw

Toggle fields

IOPARST

Bit 0: I/O port A reset.

Allowed values:
1: Reset: Reset I/O port

IOPBRST

Bit 1: I/O port B reset.

Allowed values:
1: Reset: Reset I/O port

IOPCRST

Bit 2: I/O port A reset.

Allowed values:
1: Reset: Reset I/O port

IOPDRST

Bit 3: I/O port D reset.

Allowed values:
1: Reset: Reset I/O port

IOPERST

Bit 4: I/O port E reset.

Allowed values:
1: Reset: Reset I/O port

IOPHRST

Bit 7: I/O port H reset.

Allowed values:
1: Reset: Reset I/O port

AHBRSTR

AHB peripheral reset register

Offset: 0x20, size: 32, reset: 0x00000000, access: read-write

4/4 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
							CRYPRST rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
			CRCRST rw				MIFRST rw								DMARST rw

Toggle fields

DMARST

Bit 0: DMA reset.

Allowed values:
1: Reset: Reset the module

MIFRST

Bit 8: Memory interface reset.

Allowed values:
1: Reset: Reset the module

CRCRST

Bit 12: Test integration module reset.

Allowed values:
1: Reset: Reset the module

CRYPRST

Bit 24: Crypto module reset.

Allowed values:
1: Reset: Reset the module

APB2RSTR

APB2 peripheral reset register

Offset: 0x24, size: 32, reset: 0x00000000, access: read-write

7/7 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
									DBGRST rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
	USART1RST rw		SPI1RST rw			ADCRST rw				TIM22RST rw			TIM21RST rw		SYSCFGRST rw

Toggle fields

SYSCFGRST

Bit 0: System configuration controller reset.

Allowed values:
1: Reset: Reset the module

TIM21RST

Bit 2: TIM21 timer reset.

Allowed values:
1: Reset: Reset the module

TIM22RST

Bit 5: TIM22 timer reset.

Allowed values:
1: Reset: Reset the module

ADCRST

Bit 9: ADC interface reset.

Allowed values:
1: Reset: Reset the module

SPI1RST

Bit 12: SPI 1 reset.

Allowed values:
1: Reset: Reset the module

USART1RST

Bit 14: USART1 reset.

Allowed values:
1: Reset: Reset the module

DBGRST

Bit 22: DBG reset.

Allowed values:
1: Reset: Reset the module

APB1RSTR

APB1 peripheral reset register

Offset: 0x28, size: 32, reset: 0x00000000, access: read-write

15/16 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
LPTIM1RST rw	I2C3 rw		PWRRST rw	CRCRST rw					I2C2RST rw	I2C1RST rw	USART5RST rw	USART4RST rw	LPUART1RST rw	USART2RST rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
	SPI2RST rw			WWDGRST rw						TIM7RST rw	TIM6RST rw			TIM3RST rw	TIM2RST rw

Toggle fields

TIM2RST

Bit 0: Timer 2 reset.

Allowed values:
1: Reset: Reset the module

TIM3RST

Bit 1: Timer 3 reset.

Allowed values:
1: Reset: Reset the module

TIM6RST

Bit 4: Timer 6 reset.

Allowed values:
1: Reset: Reset the module

TIM7RST

Bit 5: Timer 7 reset.

Allowed values:
1: Reset: Reset the module

WWDGRST

Bit 11: Window watchdog reset.

Allowed values:
1: Reset: Reset the module

SPI2RST

Bit 14: SPI2 reset.

Allowed values:
1: Reset: Reset the module

USART2RST

Bit 17: USART2 reset.

Allowed values:
1: Reset: Reset the module

LPUART1RST

Bit 18: LPUART1 reset.

Allowed values:
1: Reset: Reset the module

USART4RST

Bit 19: USART4 reset.

Allowed values:
1: Reset: Reset the module

USART5RST

Bit 20: USART5 reset.

Allowed values:
1: Reset: Reset the module

I2C1RST

Bit 21: I2C1 reset.

Allowed values:
1: Reset: Reset the module

I2C2RST

Bit 22: I2C2 reset.

Allowed values:
1: Reset: Reset the module

CRCRST

Bit 27: CRC reset.

Allowed values:
1: Reset: Reset the module

PWRRST

Bit 28: Power interface reset.

Allowed values:
1: Reset: Reset the module

I2C3

Bit 30: I2C3 reset.

LPTIM1RST

Bit 31: Low power timer reset.

Allowed values:
1: Reset: Reset the module

IOPENR

GPIO clock enable register

Offset: 0x2c, size: 32, reset: 0x00000000, access: read-write

6/6 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
								IOPHEN rw			IOPEEN rw	IOPDEN rw	IOPCEN rw	IOPBEN rw	IOPAEN rw

Toggle fields

IOPAEN

Bit 0: IO port A clock enable bit.

Allowed values:
0: Disabled: Port clock disabled
1: Enabled: Port clock enabled

IOPBEN

Bit 1: IO port B clock enable bit.

Allowed values:
0: Disabled: Port clock disabled
1: Enabled: Port clock enabled

IOPCEN

Bit 2: IO port A clock enable bit.

Allowed values:
0: Disabled: Port clock disabled
1: Enabled: Port clock enabled

IOPDEN

Bit 3: I/O port D clock enable bit.

Allowed values:
0: Disabled: Port clock disabled
1: Enabled: Port clock enabled

IOPEEN

Bit 4: IO port E clock enable bit.

Allowed values:
0: Disabled: Port clock disabled
1: Enabled: Port clock enabled

IOPHEN

Bit 7: I/O port H clock enable bit.

Allowed values:
0: Disabled: Port clock disabled
1: Enabled: Port clock enabled

AHBENR

AHB peripheral clock enable register

Offset: 0x30, size: 32, reset: 0x00000100, access: read-write

4/4 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
							CRYPEN rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
			CRCEN rw				MIFEN rw								DMAEN rw

Toggle fields

DMAEN

Bit 0: DMA clock enable bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

MIFEN

Bit 8: NVM interface clock enable bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

CRCEN

Bit 12: CRC clock enable bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

CRYPEN

Bit 24: Crypto clock enable bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

APB2ENR

APB2 peripheral clock enable register

Offset: 0x34, size: 32, reset: 0x00000000, access: read-write

8/8 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
									DBGEN rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
	USART1EN rw		SPI1EN rw			ADCEN rw		FWEN rw		TIM22EN rw			TIM21EN rw		SYSCFGEN rw

Toggle fields

SYSCFGEN

Bit 0: System configuration controller clock enable bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

TIM21EN

Bit 2: TIM21 timer clock enable bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

TIM22EN

Bit 5: TIM22 timer clock enable bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

FWEN

Bit 7: Firewall clock enable bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

ADCEN

Bit 9: ADC clock enable bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

SPI1EN

Bit 12: SPI1 clock enable bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

USART1EN

Bit 14: USART1 clock enable bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

DBGEN

Bit 22: DBG clock enable bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

APB1ENR

APB1 peripheral clock enable register

Offset: 0x38, size: 32, reset: 0x00000000, access: read-write

14/14 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
LPTIM1EN rw	I2C3EN rw		PWREN rw						I2C2EN rw	I2C1EN rw	USART5EN rw	USART4EN rw	LPUART1EN rw	USART2EN rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
	SPI2EN rw			WWDGEN rw						TIM7EN rw	TIM6EN rw				TIM2EN rw

Toggle fields

TIM2EN

Bit 0: Timer2 clock enable bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

TIM6EN

Bit 4: Timer 6 clock enable bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

TIM7EN

Bit 5: Timer 7 clock enable bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

WWDGEN

Bit 11: Window watchdog clock enable bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

SPI2EN

Bit 14: SPI2 clock enable bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

USART2EN

Bit 17: UART2 clock enable bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

LPUART1EN

Bit 18: LPUART1 clock enable bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

USART4EN

Bit 19: USART4 clock enable bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

USART5EN

Bit 20: USART5 clock enable bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

I2C1EN

Bit 21: I2C1 clock enable bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

I2C2EN

Bit 22: I2C2 clock enable bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

PWREN

Bit 28: Power interface clock enable bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

I2C3EN

Bit 30: I2C3 clock enable bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

LPTIM1EN

Bit 31: Low power timer clock enable bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

IOPSMEN

GPIO clock enable in sleep mode register

Offset: 0x3c, size: 32, reset: 0x0000008F, access: read-write

6/6 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
								IOPHSMEN rw			IOPESMEN rw	IOPDSMEN rw	IOPCSMEN rw	IOPBSMEN rw	IOPASMEN rw

Toggle fields

IOPASMEN

Bit 0: Port A clock enable during Sleep mode bit.

Allowed values:
0: Disabled: Port x clock is disabled in Sleep mode
1: Enabled: Port x clock is enabled in Sleep mode (if enabled by IOPHEN)

IOPBSMEN

Bit 1: Port B clock enable during Sleep mode bit.

Allowed values:
0: Disabled: Port x clock is disabled in Sleep mode
1: Enabled: Port x clock is enabled in Sleep mode (if enabled by IOPHEN)

IOPCSMEN

Bit 2: Port C clock enable during Sleep mode bit.

Allowed values:
0: Disabled: Port x clock is disabled in Sleep mode
1: Enabled: Port x clock is enabled in Sleep mode (if enabled by IOPHEN)

IOPDSMEN

Bit 3: Port D clock enable during Sleep mode bit.

Allowed values:
0: Disabled: Port x clock is disabled in Sleep mode
1: Enabled: Port x clock is enabled in Sleep mode (if enabled by IOPHEN)

IOPESMEN

Bit 4: Port E clock enable during Sleep mode bit.

Allowed values:
0: Disabled: Port x clock is disabled in Sleep mode
1: Enabled: Port x clock is enabled in Sleep mode (if enabled by IOPHEN)

IOPHSMEN

Bit 7: Port H clock enable during Sleep mode bit.

Allowed values:
0: Disabled: Port x clock is disabled in Sleep mode
1: Enabled: Port x clock is enabled in Sleep mode (if enabled by IOPHEN)

AHBSMENR

AHB peripheral clock enable in sleep mode register

Offset: 0x40, size: 32, reset: 0x01111301, access: read-write

4/4 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
			CRCSMEN rw			SRAMSMEN rw	MIFSMEN rw								DMASMEN rw

Toggle fields

DMASMEN

Bit 0: DMA clock enable during sleep mode bit.

Allowed values:
0: Disabled: DMA clock disabled in Sleep mode
1: Enabled: DMA clock enabled in Sleep mode

MIFSMEN

Bit 8: NVM interface clock enable during sleep mode bit.

Allowed values:
0: Disabled: NVM interface clock disabled in Sleep mode
1: Enabled: NVM interface clock enabled in Sleep mode

SRAMSMEN

Bit 9: SRAM interface clock enable during sleep mode bit.

Allowed values:
0: Disabled: NVM interface clock disabled in Sleep mode
1: Enabled: NVM interface clock enabled in Sleep mode

CRCSMEN

Bit 12: CRC clock enable during sleep mode bit.

Allowed values:
0: Disabled: Test integration module clock disabled in Sleep mode
1: Enabled: Test integration module clock enabled in Sleep mode (if enabled by CRCEN)

APB2SMENR

APB2 peripheral clock enable in sleep mode register

Offset: 0x44, size: 32, reset: 0x00405225, access: read-write

7/7 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
									DBGSMEN rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
	USART1SMEN rw		SPI1SMEN rw			ADCSMEN rw				TIM22SMEN rw			TIM21SMEN rw		SYSCFGSMEN rw

Toggle fields

SYSCFGSMEN

Bit 0: System configuration controller clock enable during sleep mode bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

TIM21SMEN

Bit 2: TIM21 timer clock enable during sleep mode bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

TIM22SMEN

Bit 5: TIM22 timer clock enable during sleep mode bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

ADCSMEN

Bit 9: ADC clock enable during sleep mode bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

SPI1SMEN

Bit 12: SPI1 clock enable during sleep mode bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

USART1SMEN

Bit 14: USART1 clock enable during sleep mode bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

DBGSMEN

Bit 22: DBG clock enable during sleep mode bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

APB1SMENR

APB1 peripheral clock enable in sleep mode register

Offset: 0x48, size: 32, reset: 0xB8E64A11, access: read-write

16/16 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
LPTIM1SMEN rw	I2C3SMEN rw		PWRSMEN rw	CRSSMEN rw					I2C2SMEN rw	I2C1SMEN rw	USART5SMEN rw	USART4SMEN rw	LPUART1SMEN rw	USART2SMEN rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
	SPI2SMEN rw			WWDGSMEN rw						TIM7SMEN rw	TIM6SMEN rw			TIM3SMEN rw	TIM2SMEN rw

Toggle fields

TIM2SMEN

Bit 0: Timer2 clock enable during sleep mode bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

TIM3SMEN

Bit 1: Timer 3 clock enable during sleep mode bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

TIM6SMEN

Bit 4: Timer 6 clock enable during sleep mode bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

TIM7SMEN

Bit 5: Timer 7 clock enable during sleep mode bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

WWDGSMEN

Bit 11: Window watchdog clock enable during sleep mode bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

SPI2SMEN

Bit 14: SPI2 clock enable during sleep mode bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

USART2SMEN

Bit 17: UART2 clock enable during sleep mode bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

LPUART1SMEN

Bit 18: LPUART1 clock enable during sleep mode bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

USART4SMEN

Bit 19: USART4 clock enabe during sleep mode bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

USART5SMEN

Bit 20: USART5 clock enable during sleep mode bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

I2C1SMEN

Bit 21: I2C1 clock enable during sleep mode bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

I2C2SMEN

Bit 22: I2C2 clock enable during sleep mode bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

CRSSMEN

Bit 27: Clock recovery system clock enable during sleep mode bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

PWRSMEN

Bit 28: Power interface clock enable during sleep mode bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

I2C3SMEN

Bit 30: I2C3 clock enable during sleep mode bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

LPTIM1SMEN

Bit 31: Low power timer clock enable during sleep mode bit.

Allowed values:
0: Disabled: Clock disabled
1: Enabled: Clock enabled

CCIPR

Clock configuration register

Offset: 0x4c, size: 32, reset: 0x00000000, access: read-write

6/6 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
												LPTIM1SEL rw		I2C3SEL rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
		I2C1SEL rw		LPUART1SEL rw								USART2SEL rw		USART1SEL rw

Toggle fields

USART1SEL

Bits 0-1: USART1 clock source selection bits.

Allowed values:
0: APB: APB clock selected as peripheral clock
1: SYSTEM: System clock selected as peripheral clock
2: HSI16: HSI16 clock selected as peripheral clock
3: LSE: LSE clock selected as peripheral clock

USART2SEL

Bits 2-3: USART2 clock source selection bits.

Allowed values:
0: APB: APB clock selected as peripheral clock
1: SYSTEM: System clock selected as peripheral clock
2: HSI16: HSI16 clock selected as peripheral clock
3: LSE: LSE clock selected as peripheral clock

LPUART1SEL

Bits 10-11: LPUART1 clock source selection bits.

Allowed values:
0: APB: APB clock selected as peripheral clock
1: SYSTEM: System clock selected as peripheral clock
2: HSI16: HSI16 clock selected as peripheral clock
3: LSE: LSE clock selected as peripheral clock

I2C1SEL

Bits 12-13: I2C1 clock source selection bits.

Allowed values:
0: APB: APB clock selected as peripheral clock
1: SYSTEM: System clock selected as peripheral clock
2: HSI16: HSI16 clock selected as peripheral clock

I2C3SEL

Bits 16-17: I2C3 clock source selection bits.

Allowed values:
0: APB: APB clock selected as peripheral clock
1: SYSTEM: System clock selected as peripheral clock
2: HSI16: HSI16 clock selected as peripheral clock

LPTIM1SEL

Bits 18-19: Low Power Timer clock source selection bits.

Allowed values:
0: APB: APB clock selected as Timer clock
1: LSI: LSI clock selected as Timer clock
2: HSI16: HSI16 clock selected as Timer clock
3: LSE: LSE clock selected as Timer clock

CSR

Control and status register

Offset: 0x50, size: 32, reset: 0x0C000000, access: Unspecified

20/20 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
LPWRRSTF rw	WWDGRSTF rw	IWDGRSTF rw	SFTRSTF rw	PORRSTF rw	PINRSTF rw	OBLRSTF rw	FWRSTF rw	RMVF rw				RTCRST rw	RTCEN rw	RTCSEL rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
	CSSLSED rw	CSSLSEON rw	LSEDRV rw		LSEBYP rw	LSERDY r	LSEON rw							LSIRDY r	LSION rw

Toggle fields

LSION

Bit 0: Internal low-speed oscillator enable.

Allowed values:
0: Off: Oscillator OFF
1: On: Oscillator ON

LSIRDY

Bit 1: Internal low-speed oscillator ready bit.

Allowed values:
0: NotReady: Oscillator not ready
1: Ready: Oscillator ready

LSEON

Bit 8: External low-speed oscillator enable bit.

Allowed values:
0: Off: Oscillator OFF
1: On: Oscillator ON

LSERDY

Bit 9: External low-speed oscillator ready bit.

Allowed values:
0: NotReady: Oscillator not ready
1: Ready: Oscillator ready

LSEBYP

Bit 10: External low-speed oscillator bypass bit.

Allowed values:
0: NotBypassed: LSE oscillator not bypassed
1: Bypassed: LSE oscillator bypassed

LSEDRV

Bits 11-12: LSEDRV.

Allowed values:
0: Low: Lowest drive
1: MediumLow: Medium low drive
2: MediumHigh: Medium high drive
3: High: Highest drive

CSSLSEON

Bit 13: CSSLSEON.

Allowed values:
0: Off: Oscillator OFF
1: On: Oscillator ON

CSSLSED

Bit 14: CSS on LSE failure detection flag.

Allowed values:
0: NoFailure: No failure detected on LSE (32 kHz oscillator)
1: Failure: Failure detected on LSE (32 kHz oscillator)

RTCSEL

Bits 16-17: RTC and LCD clock source selection bits.

Allowed values:
0: NoClock: No clock
1: LSE: LSE oscillator clock used as RTC clock
2: LSI: LSI oscillator clock used as RTC clock
3: HSE: HSE oscillator clock divided by a programmable prescaler (selection through the RTCPRE[1:0] bits in the RCC clock control register (RCC_CR)) used as the RTC clock

RTCEN

Bit 18: RTC clock enable bit.

Allowed values:
0: Disabled: RTC clock disabled
1: Enabled: RTC clock enabled

RTCRST

Bit 19: RTC software reset bit.

Allowed values:
1: Reset: Resets the RTC peripheral

RMVF

Bit 23: Remove reset flag.

Allowed values:
1: Clear: Clears the reset flag

FWRSTF

Bit 24: Firewall reset flag.

Allowed values:
0: NoReset: No reset has occured
1: Reset: A reset has occured

OBLRSTF

Bit 25: OBLRSTF.

Allowed values:
0: NoReset: No reset has occured
1: Reset: A reset has occured

PINRSTF

Bit 26: PIN reset flag.

Allowed values:
0: NoReset: No reset has occured
1: Reset: A reset has occured

PORRSTF

Bit 27: POR/PDR reset flag.

Allowed values:
0: NoReset: No reset has occured
1: Reset: A reset has occured

SFTRSTF

Bit 28: Software reset flag.

Allowed values:
0: NoReset: No reset has occured
1: Reset: A reset has occured

IWDGRSTF

Bit 29: Independent watchdog reset flag.

Allowed values:
0: NoReset: No reset has occured
1: Reset: A reset has occured

WWDGRSTF

Bit 30: Window watchdog reset flag.

Allowed values:
0: NoReset: No reset has occured
1: Reset: A reset has occured

LPWRRSTF

Bit 31: Low-power reset flag.

Allowed values:
0: NoReset: No reset has occured
1: Reset: A reset has occured

RTC

0x40002800: Real-time clock

137/137 fields covered.

Toggle register map

Offset	Name	31	30	29	27	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
0x0	TR							PM	HT		HU					MNT			MNU					ST			SU
0x4	DR						YT				YU				WDU			MT	MU						DT		DU
0x8	CR						COE	OSEL		POL	COSEL	BKP	SUB1H	ADD1H	TSIE	WUTIE	ALRBIE	ALRAIE	TSE	WUTE	ALRBE	ALRAE		FMT	BYPSHAD	REFCKON	TSEDGE	WUCKSEL
0xc	ISR													RECALPF	TAMP3F	TAMP2F	TAMP1F	TSOVF	TSF	WUTF	ALRBF	ALRAF	INIT	INITF	RSF	INITS	SHPF	WUTWF	ALRBWF	ALRAWF
0x10	PRER							PREDIV_A							PREDIV_S
0x14	WUTR														WUT
0x1c	ALRM[A]R	MSK4	WDSEL	DT	DU		MSK3	PM	HT		HU				MSK2	MNT			MNU				MSK1	ST			SU
0x20	ALRM[B]R	MSK4	WDSEL	DT	DU		MSK3	PM	HT		HU				MSK2	MNT			MNU				MSK1	ST			SU
0x24	WPR																						KEY
0x28	SSR														SS
0x2c	SHIFTR	ADD1S														SUBFS
0x30	TSTR							PM	HT		HU					MNT			MNU					ST			SU
0x34	TSDR						YT				YU				WDU			MT	MU						DT		DU
0x38	TSSSR														SS
0x3c	CALR														CALP	CALW8	CALW16					CALM
0x40	TAMPCR					TAMP3MF	TAMP3NOERASE	TAMP3IE	TAMP2MF	TAMP2NOERASE	TAMP2IE	TAMP1MF	TAMP1NOERASE	TAMP1IE	TAMPPUDIS	TAMPPRCH		TAMPFLT		TAMPFREQ			TAMPTS	TAMP3TRG	TAMP3E	TAMP2TRG	TAMP2E	TAMPIE	TAMP1TRG	TAMP1E
0x44	ALRM[A]SSR				MASKSS											SS
0x48	ALRM[B]SSR				MASKSS											SS
0x4c	OR																												RTC_OUT_RMP	RTC_ALARM_TYPE
0x50	BKP[0]R	BKP													BKP
0x54	BKP[1]R	BKP													BKP
0x58	BKP[2]R	BKP													BKP
0x5c	BKP[3]R	BKP													BKP
0x60	BKP[4]R	BKP													BKP

Toggle registers

TR

RTC time register

Offset: 0x0, size: 32, reset: 0x00000000, access: read-write

7/7 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
									PM rw	HT rw		HU rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
	MNT rw			MNU rw					ST rw			SU rw

Toggle fields

SU

Bits 0-3: Second units in BCD format.

Allowed values: 0x0-0xf

ST

Bits 4-6: Second tens in BCD format.

Allowed values: 0x0-0x7

MNU

Offset: 0x8, size: 32, reset: 0x00000000, access: Unspecified

20/20 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
								COE rw	OSEL rw		POL rw	COSEL rw	BKP rw	SUB1H w	ADD1H w
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
TSIE rw	WUTIE rw	ALRBIE rw	ALRAIE rw	TSE rw	WUTE rw	ALRBE rw	ALRAE rw		FMT rw	BYPSHAD rw	REFCKON rw	TSEDGE rw	WUCKSEL rw

Toggle fields

WUCKSEL

Bits 0-2: Wakeup clock selection.

Allowed values:
0: Div16: RTC/16 clock is selected
1: Div8: RTC/8 clock is selected
2: Div4: RTC/4 clock is selected
3: Div2: RTC/2 clock is selected
4: ClockSpare: ck_spre (usually 1 Hz) clock is selected
6: ClockSpareWithOffset: ck_spre (usually 1 Hz) clock is selected and 2^16 is added to the WUT counter value

TSEDGE

Bit 3: Time-stamp event active edge.

Allowed values:
0: RisingEdge: RTC_TS input rising edge generates a time-stamp event
1: FallingEdge: RTC_TS input falling edge generates a time-stamp event

REFCKON

Bit 4: RTC_REFIN reference clock detection enable (50 or 60 Hz).

Allowed values:
0: Disabled: RTC_REFIN detection disabled
1: Enabled: RTC_REFIN detection enabled

BYPSHAD

Bit 5: Bypass the shadow registers.

Allowed values:
0: ShadowReg: Calendar values (when reading from RTC_SSR, RTC_TR, and RTC_DR) are taken from the shadow registers, which are updated once every two RTCCLK cycles
1: BypassShadowReg: Calendar values (when reading from RTC_SSR, RTC_TR, and RTC_DR) are taken directly from the calendar counters

FMT

Bit 6: Hour format.

Allowed values:
0: Twenty_Four_Hour: 24 hour/day format
1: AM_PM: AM/PM hour format

ALRAE

Bit 8: Alarm A enable.

Allowed values:
0: Disabled: Alarm A disabled
1: Enabled: Alarm A enabled

ALRBE

Bit 9: Alarm B enable.

Allowed values:
0: Disabled: Alarm B disabled
1: Enabled: Alarm B enabled

WUTE

Bit 10: Wakeup timer enable.

Allowed values:
0: Disabled: Wakeup timer disabled
1: Enabled: Wakeup timer enabled

TSE

Bit 11: timestamp enable.

Allowed values:
0: Disabled: Timestamp disabled
1: Enabled: Timestamp enabled

ALRAIE

Bit 12: Alarm A interrupt enable.

Allowed values:
0: Disabled: Alarm A interrupt disabled
1: Enabled: Alarm A interrupt enabled

ALRBIE

Bit 13: Alarm B interrupt enable.

Allowed values:
0: Disabled: Alarm B Interrupt disabled
1: Enabled: Alarm B Interrupt enabled

WUTIE

Bit 14: Wakeup timer interrupt enable.

Allowed values:
0: Disabled: Wakeup timer interrupt disabled
1: Enabled: Wakeup timer interrupt enabled

TSIE

Bit 15: Time-stamp interrupt enable.

Allowed values:
0: Disabled: Time-stamp Interrupt disabled
1: Enabled: Time-stamp Interrupt enabled

ADD1H

Bit 16: Add 1 hour (summer time change).

Allowed values:
1: Add1: Adds 1 hour to the current time. This can be used for summer time change outside initialization mode

SUB1H

Bit 17: Subtract 1 hour (winter time change).

Allowed values:
1: Sub1: Subtracts 1 hour to the current time. This can be used for winter time change outside initialization mode

BKP

Bit 18: Backup.

Allowed values:
0: DST_Not_Changed: Daylight Saving Time change has not been performed
1: DST_Changed: Daylight Saving Time change has been performed

COSEL

Bit 19: Calibration output selection.

Allowed values:
0: CalFreq_512Hz: Calibration output is 512 Hz (with default prescaler setting)
1: CalFreq_1Hz: Calibration output is 1 Hz (with default prescaler setting)

POL

Bit 20: Output polarity.

Allowed values:
0: High: The pin is high when ALRAF/ALRBF/WUTF is asserted (depending on OSEL[1:0])
1: Low: The pin is low when ALRAF/ALRBF/WUTF is asserted (depending on OSEL[1:0])

OSEL

Bits 21-22: Output selection.

Allowed values:
0: Disabled: Output disabled
1: AlarmA: Alarm A output enabled
2: AlarmB: Alarm B output enabled
3: Wakeup: Wakeup output enabled

COE

Bit 23: Calibration output enable.

Allowed values:
0: Disabled: Calibration output disabled
1: Enabled: Calibration output enabled

ISR

RTC initialization and status register

Offset: 0xc, size: 32, reset: 0x00000000, access: Unspecified

17/17 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
															RECALPF N/A
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
TAMP3F N/A	TAMP2F rw	TAMP1F rw	TSOVF rw	TSF rw	WUTF rw	ALRBF rw	ALRAF rw	INIT rw	INITF r	RSF rw	INITS r	SHPF r	WUTWF r	ALRBWF r	ALRAWF r

Toggle fields

ALRAWF

Bit 0: Alarm A write flag.

Allowed values:
0: UpdateNotAllowed: Alarm update not allowed
1: UpdateAllowed: Alarm update allowed

ALRBWF

Bit 1: Alarm B write flag.

Allowed values:
0: UpdateNotAllowed: Alarm update not allowed
1: UpdateAllowed: Alarm update allowed

WUTWF

Bit 2: Wakeup timer write flag.

Allowed values:
0: UpdateNotAllowed: Wakeup timer configuration update not allowed
1: UpdateAllowed: Wakeup timer configuration update allowed

SHPF

Bit 3: Shift operation pending.

Allowed values:
0: NoShiftPending: No shift operation is pending
1: ShiftPending: A shift operation is pending

INITS

Bit 4: Initialization status flag.

Allowed values:
0: NotInitalized: Calendar has not been initialized
1: Initalized: Calendar has been initialized

RSF

Bit 5: Registers synchronization flag.

Allowed values:
0: NotSynced: Calendar shadow registers not yet synchronized
1: Synced: Calendar shadow registers synchronized

INITF

Bit 6: Initialization flag.

Allowed values:
0: NotAllowed: Calendar registers update is not allowed
1: Allowed: Calendar registers update is allowed

INIT

Bit 7: Initialization mode.

Allowed values:
0: FreeRunningMode: Free running mode
1: InitMode: Initialization mode used to program time and date register (RTC_TR and RTC_DR), and prescaler register (RTC_PRER). Counters are stopped and start counting from the new value when INIT is reset.

ALRAF

Bit 8: Alarm A flag.

Allowed values:
1: Match: This flag is set by hardware when the time/date registers (RTC_TR and RTC_DR) match the Alarm A register (RTC_ALRMAR)

ALRBF

Bit 9: Alarm B flag.

Allowed values:
1: Match: This flag is set by hardware when the time/date registers (RTC_TR and RTC_DR) match the Alarm B register (RTC_ALRMBR)

WUTF

Bit 10: Wakeup timer flag.

Allowed values:
1: Zero: This flag is set by hardware when the wakeup auto-reload counter reaches 0

TSF

Bit 11: Time-stamp flag.

Allowed values:
1: TimestampEvent: This flag is set by hardware when a time-stamp event occurs

TSOVF

Bit 12: Time-stamp overflow flag.

Allowed values:
1: Overflow: This flag is set by hardware when a time-stamp event occurs while TSF is already set

TAMP1F

Bit 13: RTC_TAMP1 detection flag.

Allowed values:
1: Tampered: This flag is set by hardware when a tamper detection event is detected on the RTC_TAMPx input

TAMP2F

Bit 14: RTC_TAMP2 detection flag.

Allowed values:
1: Tampered: This flag is set by hardware when a tamper detection event is detected on the RTC_TAMPx input

TAMP3F

Bit 15: RTC_TAMP3 detection flag.

Allowed values:
1: Tampered: This flag is set by hardware when a tamper detection event is detected on the RTC_TAMPx input

RECALPF

Bit 16: Recalibration pending flag.

Allowed values:
1: Pending: The RECALPF status flag is automatically set to 1 when software writes to the RTC_CALR register, indicating that the RTC_CALR register is blocked. When the new calibration settings are taken into account, this bit returns to 0

PRER

RTC prescaler register

Offset: 0x10, size: 32, reset: 0x00000000, access: read-write

2/2 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
									PREDIV_A rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
PREDIV_S rw

Toggle fields

PREDIV_S

Bits 0-15: Synchronous prescaler factor.

Allowed values: 0x0-0x7fff

PREDIV_A

Bits 16-22: Asynchronous prescaler factor.

Allowed values: 0x0-0x7f

WUTR

RTC wakeup timer register

Offset: 0x14, size: 32, reset: 0x00000000, access: read-write

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
WUT rw

Toggle fields

WUT

Bits 0-15: Wakeup auto-reload value bits.

Allowed values: 0x0-0xffff

ALRM[A]R

Alarm A register

Offset: 0x1c, size: 32, reset: 0x00000000, access: read-write

14/14 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
MSK4 rw	WDSEL rw	DT rw		DU rw				MSK3 rw	PM rw	HT rw		HU rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
MSK2 rw	MNT rw			MNU rw				MSK1 rw	ST rw			SU rw

Allowed values: 0x0-0x3

WDSEL

Bit 30: Week day selection.

Allowed values:
0: DateUnits: DU[3:0] represents the date units
1: WeekDay: DU[3:0] represents the week day. DT[1:0] is don’t care.

MSK4

Bit 31: Alarm date mask.

Allowed values:
0: Mask: Alarm set if the date/day match
1: NotMask: Date/day don’t care in Alarm comparison

ALRM[B]R

Alarm B register

Offset: 0x20, size: 32, reset: 0x00000000, access: read-write

14/14 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
MSK4 rw	WDSEL rw	DT rw		DU rw				MSK3 rw	PM rw	HT rw		HU rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
MSK2 rw	MNT rw			MNU rw				MSK1 rw	ST rw			SU rw

Allowed values: 0x0-0x3

WDSEL

Bit 30: Week day selection.

Allowed values:
0: DateUnits: DU[3:0] represents the date units
1: WeekDay: DU[3:0] represents the week day. DT[1:0] is don’t care.

MSK4

Bit 31: Alarm date mask.

Allowed values:
0: Mask: Alarm set if the date/day match
1: NotMask: Date/day don’t care in Alarm comparison

WPR

write protection register

Offset: 0x24, size: 32, reset: 0x00000000, access: write-only

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
								KEY w

Toggle fields

KEY

Bits 0-7: Write protection key.

Allowed values: 0x0-0xff

SSR

RTC sub second register

Offset: 0x28, size: 32, reset: 0x00000000, access: read-only

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
SS r

Toggle fields

SS

Bits 0-15: Sub second value.

Allowed values: 0x0-0xffff

SHIFTR

RTC shift control register

Offset: 0x2c, size: 32, reset: 0x00000000, access: write-only

2/2 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
ADD1S w
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
	SUBFS w

Toggle fields

SUBFS

Bits 0-14: Subtract a fraction of a second.

Allowed values: 0x0-0x7fff

ADD1S

Bit 31: Add one second.

Allowed values:
1: Add1: Add one second to the clock/calendar

TSTR

RTC timestamp time register

Offset: 0x30, size: 32, reset: 0x00000000, access: read-write

7/7 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
									PM rw	HT rw		HU rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
	MNT rw			MNU rw					ST rw			SU rw

Toggle fields

SU

Bits 0-3: Second units in BCD format.

Allowed values: 0x0-0xf

ST

Bits 4-6: Second tens in BCD format.

Allowed values: 0x0-0x7

MNU

Offset: 0x38, size: 32, reset: 0x00000000, access: read-only

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
SS r

Toggle fields

SS

Bits 0-15: Sub second value.

Allowed values: 0x0-0xffff

CALR

RTC calibration register

Offset: 0x3c, size: 32, reset: 0x00000000, access: read-write

4/4 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
CALP rw	CALW8 rw	CALW16 rw					CALM rw

Toggle fields

CALM

Bits 0-8: Calibration minus.

Allowed values: 0x0-0x1ff

CALW16

Bit 13: Use a 16-second calibration cycle period.

Allowed values:
1: Sixteen_Second: When CALW16 is set to ‘1’, the 16-second calibration cycle period is selected.This bit must not be set to ‘1’ if CALW8=1

CALW8

Bit 14: Use an 8-second calibration cycle period.

Allowed values:
1: Eight_Second: When CALW8 is set to ‘1’, the 8-second calibration cycle period is selected

CALP

Bit 15: Increase frequency of RTC by 488.5 ppm.

Allowed values:
0: NoChange: No RTCCLK pulses are added
1: IncreaseFreq: One RTCCLK pulse is effectively inserted every 2^11 pulses (frequency increased by 488.5 ppm)

TAMPCR

RTC tamper configuration register

Offset: 0x40, size: 32, reset: 0x00000000, access: read-write

21/21 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
							TAMP3MF rw	TAMP3NOERASE rw	TAMP3IE rw	TAMP2MF rw	TAMP2NOERASE rw	TAMP2IE rw	TAMP1MF rw	TAMP1NOERASE rw	TAMP1IE rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
TAMPPUDIS rw	TAMPPRCH rw		TAMPFLT rw		TAMPFREQ rw			TAMPTS rw	TAMP3TRG rw	TAMP3E rw	TAMP2TRG rw	TAMP2E rw	TAMPIE rw	TAMP1TRG rw	TAMP1E rw

Toggle fields

TAMP1E

Bit 0: RTC_TAMP1 input detection enable.

Allowed values:
0: Disabled: RTC_TAMPx input detection disabled
1: Enabled: RTC_TAMPx input detection enabled

TAMP1TRG

Bit 1: Active level for RTC_TAMP1 input.

Allowed values:
0: RisingEdge: If TAMPFLT = 00: RTC_TAMPx input rising edge triggers a tamper detection event. If TAMPFLT ≠ 00: RTC_TAMPx input staying low triggers a tamper detection event.
1: FallingEdge: If TAMPFLT = 00: RTC_TAMPx input staying high triggers a tamper detection event. If TAMPFLT ≠ 00: RTC_TAMPx input falling edge triggers a tamper detection event

TAMPIE

Bit 2: Tamper interrupt enable.

Allowed values:
0: Disabled: Tamper interrupt disabled
1: Enabled: Tamper interrupt enabled

TAMP2E

Bit 3: RTC_TAMP2 input detection enable.

Allowed values:
0: Disabled: RTC_TAMPx input detection disabled
1: Enabled: RTC_TAMPx input detection enabled

TAMP2TRG

Bit 4: Active level for RTC_TAMP2 input.

Allowed values:
0: RisingEdge: If TAMPFLT = 00: RTC_TAMPx input rising edge triggers a tamper detection event. If TAMPFLT ≠ 00: RTC_TAMPx input staying low triggers a tamper detection event.
1: FallingEdge: If TAMPFLT = 00: RTC_TAMPx input staying high triggers a tamper detection event. If TAMPFLT ≠ 00: RTC_TAMPx input falling edge triggers a tamper detection event

TAMP3E

Bit 5: RTC_TAMP3 detection enable.

Allowed values:
0: Disabled: RTC_TAMPx input detection disabled
1: Enabled: RTC_TAMPx input detection enabled

TAMP3TRG

Bit 6: Active level for RTC_TAMP3 input.

Allowed values:
0: RisingEdge: If TAMPFLT = 00: RTC_TAMPx input rising edge triggers a tamper detection event. If TAMPFLT ≠ 00: RTC_TAMPx input staying low triggers a tamper detection event.
1: FallingEdge: If TAMPFLT = 00: RTC_TAMPx input staying high triggers a tamper detection event. If TAMPFLT ≠ 00: RTC_TAMPx input falling edge triggers a tamper detection event

TAMPTS

Bit 7: Activate timestamp on tamper detection event.

Allowed values:
0: NoSave: Tamper detection event does not cause a timestamp to be saved
1: Save: Save timestamp on tamper detection event

TAMPFREQ

Bits 8-10: Tamper sampling frequency.

Allowed values:
0: Div32768: RTCCLK / 32768 (1 Hz when RTCCLK = 32768 Hz)
1: Div16384: RTCCLK / 16384 (2 Hz when RTCCLK = 32768 Hz)
2: Div8192: RTCCLK / 8192 (4 Hz when RTCCLK = 32768 Hz)
3: Div4096: RTCCLK / 4096 (8 Hz when RTCCLK = 32768 Hz)
4: Div2048: RTCCLK / 2048 (16 Hz when RTCCLK = 32768 Hz)
5: Div1024: RTCCLK / 1024 (32 Hz when RTCCLK = 32768 Hz)
6: Div512: RTCCLK / 512 (64 Hz when RTCCLK = 32768 Hz)
7: Div256: RTCCLK / 256 (128 Hz when RTCCLK = 32768 Hz)

TAMPFLT

Bits 11-12: RTC_TAMPx filter count.

Allowed values:
0: Immediate: Tamper event is activated on edge of RTC_TAMPx input transitions to the active level (no internal pull-up on RTC_TAMPx input)
1: Samples2: Tamper event is activated after 2 consecutive samples at the active level
2: Samples4: Tamper event is activated after 4 consecutive samples at the active level
3: Samples8: Tamper event is activated after 8 consecutive samples at the active level

TAMPPRCH

Bits 13-14: RTC_TAMPx precharge duration.

Allowed values:
0: Cycles1: 1 RTCCLK cycle
1: Cycles2: 2 RTCCLK cycles
2: Cycles4: 4 RTCCLK cycles
3: Cycles8: 8 RTCCLK cycles

TAMPPUDIS

Bit 15: RTC_TAMPx pull-up disable.

Allowed values:
0: Enabled: Precharge RTC_TAMPx pins before sampling (enable internal pull-up)
1: Disabled: Disable precharge of RTC_TAMPx pins

TAMP1IE

Bit 16: Tamper 1 interrupt enable.

Allowed values:
0: Disabled: Tamper x interrupt is disabled if TAMPIE = 0
1: Enabled: Tamper x interrupt enabled

TAMP1NOERASE

Bit 17: Tamper 1 no erase.

Allowed values:
0: Erase: Tamper x event erases the backup registers
1: NoErase: Tamper x event does not erase the backup registers

TAMP1MF

Bit 18: Tamper 1 mask flag.

Allowed values:
0: NotMasked: Tamper x event generates a trigger event and TAMPxF must be cleared by software to allow next tamper event detection
1: Masked: Tamper x event generates a trigger event. TAMPxF is masked and internally cleared by hardware. The backup registers are not erased.

TAMP2IE

Bit 19: Tamper 2 interrupt enable.

Allowed values:
0: Disabled: Tamper x interrupt is disabled if TAMPIE = 0
1: Enabled: Tamper x interrupt enabled

TAMP2NOERASE

Bit 20: Tamper 2 no erase.

Allowed values:
0: Erase: Tamper x event erases the backup registers
1: NoErase: Tamper x event does not erase the backup registers

TAMP2MF

Bit 21: Tamper 2 mask flag.

Allowed values:
0: NotMasked: Tamper x event generates a trigger event and TAMPxF must be cleared by software to allow next tamper event detection
1: Masked: Tamper x event generates a trigger event. TAMPxF is masked and internally cleared by hardware. The backup registers are not erased.

TAMP3IE

Bit 22: Tamper 3 interrupt enable.

Allowed values:
0: Disabled: Tamper x interrupt is disabled if TAMPIE = 0
1: Enabled: Tamper x interrupt enabled

TAMP3NOERASE

Bit 23: Tamper 3 no erase.

Allowed values:
0: Erase: Tamper x event erases the backup registers
1: NoErase: Tamper x event does not erase the backup registers

TAMP3MF

Bit 24: Tamper 3 mask flag.

Allowed values:
0: NotMasked: Tamper x event generates a trigger event and TAMPxF must be cleared by software to allow next tamper event detection
1: Masked: Tamper x event generates a trigger event. TAMPxF is masked and internally cleared by hardware. The backup registers are not erased.

ALRM[A]SSR

Alarm A sub-second register

Offset: 0x44, size: 32, reset: 0x00000000, access: read-write

2/2 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
				MASKSS rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
	SS rw

Toggle fields

SS

Bits 0-14: Sub seconds value.

Allowed values: 0x0-0x7fff

MASKSS

Bits 24-27: Mask the most-significant bits starting at this bit.

Allowed values: 0x0-0xf

ALRM[B]SSR

Alarm B sub-second register

Offset: 0x48, size: 32, reset: 0x00000000, access: read-write

2/2 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
				MASKSS rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
	SS rw

Toggle fields

SS

Bits 0-14: Sub seconds value.

Allowed values: 0x0-0x7fff

MASKSS

Bits 24-27: Mask the most-significant bits starting at this bit.

Allowed values: 0x0-0xf

OR

option register

Offset: 0x4c, size: 32, reset: 0x00000000, access: read-write

2/2 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
														RTC_OUT_RMP rw	RTC_ALARM_TYPE rw

Toggle fields

RTC_ALARM_TYPE

Offset	Name	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
0x0	CR1	BIDIMODE	BIDIOE	CRCEN	CRCNEXT	DFF	RXONLY	SSM	SSI	LSBFIRST	SPE	BR			MSTR	CPOL	CPHA
0x4	CR2									TXEIE	RXNEIE	ERRIE	FRF		SSOE	TXDMAEN	RXDMAEN
0x8	SR								FRE	BSY	OVR	MODF	CRCERR	UDR	CHSIDE	TXE	RXNE
0xc	DR	DR
0x10	CRCPR	CRCPOLY
0x14	RXCRCR	RxCRC
0x18	TXCRCR	TxCRC
0x1c	I2SCFGR					I2SMOD	I2SE	I2SCFG		PCMSYNC		I2SSTD		CKPOL	DATLEN		CHLEN
0x20	I2SPR							MCKOE	ODD	I2SDIV

Toggle registers

CR1

control register 1

Offset: 0x0, size: 32, reset: 0x00000000, access: read-write

14/14 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
BIDIMODE rw	BIDIOE rw	CRCEN rw	CRCNEXT rw	DFF rw	RXONLY rw	SSM rw	SSI rw	LSBFIRST rw	SPE rw	BR rw			MSTR rw	CPOL rw	CPHA rw

Toggle fields

CPHA

Bit 0: Clock phase.

Allowed values:
0: FirstEdge: The first clock transition is the first data capture edge
1: SecondEdge: The second clock transition is the first data capture edge

CPOL

Bit 1: Clock polarity.

Allowed values:
0: IdleLow: CK to 0 when idle
1: IdleHigh: CK to 1 when idle

MSTR

Bit 2: Master selection.

Allowed values:
0: Slave: Slave configuration
1: Master: Master configuration

BR

Bits 3-5: Baud rate control.

Allowed values:
0: Div2: f_PCLK / 2
1: Div4: f_PCLK / 4
2: Div8: f_PCLK / 8
3: Div16: f_PCLK / 16
4: Div32: f_PCLK / 32
5: Div64: f_PCLK / 64
6: Div128: f_PCLK / 128
7: Div256: f_PCLK / 256

SPE

Bit 6: SPI enable.

Allowed values:
0: Disabled: Peripheral disabled
1: Enabled: Peripheral enabled

LSBFIRST

Bit 7: Frame format.

Allowed values:
0: MSBFirst: Data is transmitted/received with the MSB first
1: LSBFirst: Data is transmitted/received with the LSB first

SSI

Bit 8: Internal slave select.

Allowed values:
0: SlaveSelected: 0 is forced onto the NSS pin and the I/O value of the NSS pin is ignored
1: SlaveNotSelected: 1 is forced onto the NSS pin and the I/O value of the NSS pin is ignored

SSM

Bit 9: Software slave management.

Allowed values:
0: Disabled: Software slave management disabled
1: Enabled: Software slave management enabled

RXONLY

Bit 10: Receive only.

Allowed values:
0: FullDuplex: Full duplex (Transmit and receive)
1: OutputDisabled: Output disabled (Receive-only mode)

DFF

Bit 11: Data frame format.

Allowed values:
0: EightBit: 8-bit data frame format is selected for transmission/reception
1: SixteenBit: 16-bit data frame format is selected for transmission/reception

CRCNEXT

Bit 12: CRC transfer next.

Allowed values:
0: TxBuffer: Next transmit value is from Tx buffer
1: CRC: Next transmit value is from Tx CRC register

CRCEN

Bit 13: Hardware CRC calculation enable.

Allowed values:
0: Disabled: CRC calculation disabled
1: Enabled: CRC calculation enabled

BIDIOE

Bit 14: Output enable in bidirectional mode.

Allowed values:
0: OutputDisabled: Output disabled (receive-only mode)
1: OutputEnabled: Output enabled (transmit-only mode)

BIDIMODE

Bit 15: Bidirectional data mode enable.

Allowed values:
0: Unidirectional: 2-line unidirectional data mode selected
1: Bidirectional: 1-line bidirectional data mode selected

CR2

control register 2

Offset: 0x4, size: 32, reset: 0x00000000, access: read-write

6/7 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
								TXEIE rw	RXNEIE rw	ERRIE rw	FRF rw		SSOE rw	TXDMAEN rw	RXDMAEN rw

Toggle fields

RXDMAEN

Bit 0: Rx buffer DMA enable.

Allowed values:
0: Disabled: Rx buffer DMA disabled
1: Enabled: Rx buffer DMA enabled

TXDMAEN

Bit 1: Tx buffer DMA enable.

Allowed values:
0: Disabled: Tx buffer DMA disabled
1: Enabled: Tx buffer DMA enabled

SSOE

Bit 2: SS output enable.

Allowed values:
0: Disabled: SS output is disabled in master mode
1: Enabled: SS output is enabled in master mode

FRF

Bit 4: Frame format.

ERRIE

Bit 5: Error interrupt enable.

Allowed values:
0: Masked: Error interrupt masked
1: NotMasked: Error interrupt not masked

RXNEIE

Bit 6: RX buffer not empty interrupt enable.

Allowed values:
0: Masked: RXE interrupt masked
1: NotMasked: RXE interrupt not masked

TXEIE

Bit 7: Tx buffer empty interrupt enable.

Allowed values:
0: Masked: TXE interrupt masked
1: NotMasked: TXE interrupt not masked

SR

status register

Offset: 0x8, size: 32, reset: 0x00000002, access: Unspecified

9/9 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
							FRE r	BSY r	OVR r	MODF r	CRCERR rw	UDR r	CHSIDE r	TXE r	RXNE r

Toggle fields

RXNE

Bit 0: Receive buffer not empty.

Allowed values:
0: Empty: Rx buffer empty
1: NotEmpty: Rx buffer not empty

TXE

Bit 1: Transmit buffer empty.

Allowed values:
0: NotEmpty: Tx buffer not empty
1: Empty: Tx buffer empty

CHSIDE

Bit 2: Channel side.

UDR

Bit 3: Underrun flag.

CRCERR

Bit 4: CRC error flag.

Allowed values:
0: Match: CRC value received matches the SPIx_RXCRCR value
1: NoMatch: CRC value received does not match the SPIx_RXCRCR value

MODF

Bit 5: Mode fault.

Allowed values:
0: NoFault: No mode fault occurred
1: Fault: Mode fault occurred

OVR

Bit 6: Overrun flag.

Allowed values:
0: NoOverrun: No overrun occurred
1: Overrun: Overrun occurred

BSY

Bit 7: Busy flag.

Allowed values:
0: NotBusy: SPI not busy
1: Busy: SPI busy

FRE

Bit 8: TI frame format error.

DR

data register

Offset: 0xc, size: 32, reset: 0x00000000, access: read-write

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
DR rw

Toggle fields

DR

Bits 0-15: Data register.

Allowed values: 0x0-0xffff

CRCPR

CRC polynomial register

Offset: 0x10, size: 32, reset: 0x00000007, access: read-write

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
CRCPOLY rw

Toggle fields

CRCPOLY

Bits 0-15: CRC polynomial register.

Allowed values: 0x0-0xffff

RXCRCR

RX CRC register

Offset: 0x14, size: 32, reset: 0x00000000, access: read-only

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
RxCRC r

Toggle fields

RxCRC

Bits 0-15: Rx CRC register.

Allowed values: 0x0-0xffff

TXCRCR

TX CRC register

Offset: 0x18, size: 32, reset: 0x00000000, access: read-only

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
TxCRC r

Toggle fields

TxCRC

Bits 0-15: Tx CRC register.

Allowed values: 0x0-0xffff

I2SCFGR

I2S configuration register

Offset: 0x1c, size: 32, reset: 0x00000000, access: read-write

0/8 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
				I2SMOD rw	I2SE rw	I2SCFG rw		PCMSYNC rw		I2SSTD rw		CKPOL rw	DATLEN rw		CHLEN rw

Toggle fields

CHLEN

Bit 0: Channel length (number of bits per audio channel).

DATLEN

Bits 1-2: Data length to be transferred.

CKPOL

Bit 3: Steady state clock polarity.

I2SSTD

Bits 4-5: I2S standard selection.

PCMSYNC

Bit 7: PCM frame synchronization.

I2SCFG

Bits 8-9: I2S configuration mode.

I2SE

Bit 10: I2S Enable.

I2SMOD

Bit 11: I2S mode selection.

I2SPR

I2S prescaler register

Offset: 0x20, size: 32, reset: 0x00000010, access: read-write

0/3 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
						MCKOE rw	ODD rw	I2SDIV rw

Toggle fields

I2SDIV

Bits 0-7: I2S Linear prescaler.

ODD

Bit 8: Odd factor for the prescaler.

MCKOE

Bit 9: Master clock output enable.

SYSCFG

0x40010000: System configuration controller register

26/37 fields covered.

Toggle register map

Offset	Name	31	30	29	28	27	26	15	13	12	11	10	9	8	7	5	3	1	0
0x0	CFGR1												BOOT_MODE					MEM_MODE
0x4	CFGR2								I2C2_FMP	I2C1_FMP	I2C_PB9_FMP	I2C_PB8_FMP	I2C_PB7_FMP	I2C_PB6_FMP					FWDIS
0x8	EXTICR1							EXTI3			EXTI2				EXTI1		EXTI0
0xc	EXTICR2							EXTI7			EXTI6				EXTI5		EXTI4
0x10	EXTICR3							EXTI11			EXTI10				EXTI9		EXTI8
0x14	EXTICR4							EXTI15			EXTI14				EXTI13		EXTI12
0x20	CFGR3	REF_LOCK	VREFINT_RDYF	VREFINT_COMP_RDYF	VREFINT_ADC_RDYF	SENSOR_ADC_RDYF	REF_RC48MHz_RDYF		ENREF_RC48MHz	ENBUF_VREFINT_COMP			ENBUF_SENSOR_ADC	ENBUF_BGAP_ADC		SEL_VREF_OUT			EN_BGAP

Toggle registers

CFGR1

SYSCFG configuration register 1

Offset: 0x0, size: 32, reset: 0x00000000, access: Unspecified

2/2 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
						BOOT_MODE r								MEM_MODE rw

Toggle fields

MEM_MODE

Bits 0-1: Memory mapping selection bits.

Allowed values:
0: MainFlash: Main Flash memory mapped at 0x0000_0000
1: SystemFlash: System Flash memory mapped at 0x0000_0000
3: SRAM: Embedded SRAM mapped at 0x0000_0000

BOOT_MODE

Bits 8-9: Boot mode selected by the boot pins status bits.

Allowed values:
0: MainFlash: Main Flash memory boot mode
1: SystemFlash: System Flash memory boot mode
3: SRAM: Embedded SRAM boot mode

CFGR2

SYSCFG configuration register 2

Offset: 0x4, size: 32, reset: 0x00000000, access: read-write

0/7 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
		I2C2_FMP rw	I2C1_FMP rw	I2C_PB9_FMP rw	I2C_PB8_FMP rw	I2C_PB7_FMP rw	I2C_PB6_FMP rw								FWDIS rw

Toggle fields

FWDIS

Bit 0: Firewall disable bit.

I2C_PB6_FMP

Bit 8: Fm+ drive capability on PB6 enable bit.

I2C_PB7_FMP

Bit 9: Fm+ drive capability on PB7 enable bit.

I2C_PB8_FMP

Bit 10: Fm+ drive capability on PB8 enable bit.

I2C_PB9_FMP

Bit 11: Fm+ drive capability on PB9 enable bit.

I2C1_FMP

Bit 12: I2C1 Fm+ drive capability enable bit.

I2C2_FMP

Bit 13: I2C2 Fm+ drive capability enable bit.

EXTICR1

external interrupt configuration register 1

Offset: 0x8, size: 32, reset: 0x00000000, access: read-write

4/4 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
EXTI3 rw				EXTI2 rw				EXTI1 rw				EXTI0 rw

Toggle fields

EXTI0

Bits 0-3: EXTI x configuration (x = 0 to 3).

Allowed values:
0: PA0: Select PA0 as the source input for the EXTI0 external interrupt
1: PB0: Select PB0 as the source input for the EXTI0 external interrupt
2: PC0: Select PC0 as the source input for the EXTI0 external interrupt
3: PD0: Select PD0 as the source input for the EXTI0 external interrupt
4: PE0: Select PE0 as the source input for the EXTI0 external interrupt
5: PH0: Select PH0 as the source input for the EXTI0 external interrupt

EXTI1

Bits 4-7: EXTI x configuration (x = 0 to 3).

Allowed values:
0: PA1: Select PA1 as the source input for the EXTI1 external interrupt
1: PB1: Select PB1 as the source input for the EXTI1 external interrupt
2: PC1: Select PC1 as the source input for the EXTI1 external interrupt
3: PD1: Select PD1 as the source input for the EXTI1 external interrupt
4: PE1: Select PE1 as the source input for the EXTI1 external interrupt
5: PH1: Select PH1 as the source input for the EXTI1 external interrupt

EXTI2

Bits 8-11: EXTI x configuration (x = 0 to 3).

Allowed values:
0: PA2: Select PA2 as the source input for the EXTI2 external interrupt
1: PB2: Select PB2 as the source input for the EXTI2 external interrupt
2: PC2: Select PC2 as the source input for the EXTI2 external interrupt
3: PD2: Select PD2 as the source input for the EXTI2 external interrupt
4: PE2: Select PE2 as the source input for the EXTI2 external interrupt

EXTI3

Bits 12-15: EXTI x configuration (x = 0 to 3).

Allowed values:
0: PA3: Select PA3 as the source input for the EXTI3 external interrupt
1: PB3: Select PB3 as the source input for the EXTI3 external interrupt
2: PC3: Select PC3 as the source input for the EXTI3 external interrupt
3: PD3: Select PD3 as the source input for the EXTI3 external interrupt
4: PE3: Select PE3 as the source input for the EXTI3 external interrupt

EXTICR2

external interrupt configuration register 2

Offset: 0xc, size: 32, reset: 0x00000000, access: read-write

4/4 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
EXTI7 rw				EXTI6 rw				EXTI5 rw				EXTI4 rw

Toggle fields

EXTI4

Bits 0-3: EXTI x configuration (x = 4 to 7).

Allowed values:
0: PA4: Select PA4 as the source input for the EXTI4 external interrupt
1: PB4: Select PB4 as the source input for the EXTI4 external interrupt
2: PC4: Select PC4 as the source input for the EXTI4 external interrupt
3: PD4: Select PD4 as the source input for the EXTI4 external interrupt
4: PE4: Select PE4 as the source input for the EXTI4 external interrupt

EXTI5

Bits 4-7: EXTI x configuration (x = 4 to 7).

Allowed values:
0: PA5: Select PA5 as the source input for the EXTI5 external interrupt
1: PB5: Select PB5 as the source input for the EXTI5 external interrupt
2: PC5: Select PC5 as the source input for the EXTI5 external interrupt
3: PD5: Select PD5 as the source input for the EXTI5 external interrupt
4: PE5: Select PE5 as the source input for the EXTI5 external interrupt

EXTI6

Bits 8-11: EXTI x configuration (x = 4 to 7).

Allowed values:
0: PA6: Select PA6 as the source input for the EXTI6 external interrupt
1: PB6: Select PB6 as the source input for the EXTI6 external interrupt
2: PC6: Select PC6 as the source input for the EXTI6 external interrupt
3: PD6: Select PD6 as the source input for the EXTI6 external interrupt
4: PE6: Select PE6 as the source input for the EXTI6 external interrupt

EXTI7

Bits 12-15: EXTI x configuration (x = 4 to 7).

Allowed values:
0: PA7: Select PA7 as the source input for the EXTI7 external interrupt
1: PB7: Select PB7 as the source input for the EXTI7 external interrupt
2: PC7: Select PC7 as the source input for the EXTI7 external interrupt
3: PD7: Select PD7 as the source input for the EXTI7 external interrupt
4: PE7: Select PE7 as the source input for the EXTI7 external interrupt

EXTICR3

external interrupt configuration register 3

Offset: 0x10, size: 32, reset: 0x00000000, access: read-write

4/4 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
EXTI11 rw				EXTI10 rw				EXTI9 rw				EXTI8 rw

Toggle fields

EXTI8

Bits 0-3: EXTI x configuration (x = 8 to 11).

Allowed values:
0: PA8: Select PA8 as the source input for the EXTI8 external interrupt
1: PB8: Select PB8 as the source input for the EXTI8 external interrupt
2: PC8: Select PC8 as the source input for the EXTI8 external interrupt
3: PD8: Select PD8 as the source input for the EXTI8 external interrupt
4: PE8: Select PE8 as the source input for the EXTI8 external interrupt

EXTI9

Bits 4-7: EXTI x configuration (x = 8 to 11).

Allowed values:
0: PA9: Select PA9 as the source input for the EXTI9 external interrupt
1: PB9: Select PB9 as the source input for the EXTI9 external interrupt
2: PC9: Select PC9 as the source input for the EXTI9 external interrupt
3: PD9: Select PD9 as the source input for the EXTI9 external interrupt
4: PE9: Select PE9 as the source input for the EXTI9 external interrupt
5: PH9: Select PH9 as the source input for the EXTI9 external interrupt

EXTI10

Bits 8-11: EXTI10.

Allowed values:
0: PA10: Select PA10 as the source input for the EXTI10 external interrupt
1: PB10: Select PB10 as the source input for the EXTI10 external interrupt
2: PC10: Select PC10 as the source input for the EXTI10 external interrupt
3: PD10: Select PD10 as the source input for the EXTI10 external interrupt
4: PE10: Select PE10 as the source input for the EXTI10 external interrupt
5: PH10: Select PH10 as the source input for the EXTI10 external interrupt

EXTI11

Bits 12-15: EXTI x configuration (x = 8 to 11).

Allowed values:
0: PA11: Select PA11 as the source input for the EXTI11 external interrupt
1: PB11: Select PB11 as the source input for the EXTI11 external interrupt
2: PC11: Select PC11 as the source input for the EXTI11 external interrupt
3: PD11: Select PD11 as the source input for the EXTI11 external interrupt
4: PE11: Select PE11 as the source input for the EXTI11 external interrupt
5: PH11: Select PH11 as the source input for the EXTI11 external interrupt

EXTICR4

external interrupt configuration register 4

Offset: 0x14, size: 32, reset: 0x00000000, access: read-write

4/4 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
EXTI15 rw				EXTI14 rw				EXTI13 rw				EXTI12 rw

Toggle fields

EXTI12

Bits 0-3: EXTI12.

Allowed values:
0: PA12: Select PA12 as the source input for the EXTI12 external interrupt
1: PB12: Select PB12 as the source input for the EXTI12 external interrupt
2: PC12: Select PC12 as the source input for the EXTI12 external interrupt
3: PD12: Select PD12 as the source input for the EXTI12 external interrupt
4: PE12: Select PE12 as the source input for the EXTI12 external interrupt

EXTI13

Bits 4-7: EXTI13.

Allowed values:
0: PA13: Select PA13 as the source input for the EXTI13 external interrupt
1: PB13: Select PB13 as the source input for the EXTI13 external interrupt
2: PC13: Select PC13 as the source input for the EXTI13 external interrupt
3: PD13: Select PD13 as the source input for the EXTI13 external interrupt
4: PE13: Select PE13 as the source input for the EXTI13 external interrupt

EXTI14

Bits 8-11: EXTI14.

Allowed values:
0: PA14: Select PA14 as the source input for the EXTI14 external interrupt
1: PB14: Select PB14 as the source input for the EXTI14 external interrupt
2: PC14: Select PC14 as the source input for the EXTI14 external interrupt
3: PD14: Select PD14 as the source input for the EXTI14 external interrupt
4: PE14: Select PE14 as the source input for the EXTI14 external interrupt

EXTI15

Bits 12-15: EXTI x configuration (x = 12 to 15).

Allowed values:
0: PA15: Select PA15 as the source input for the EXTI15 external interrupt
1: PB15: Select PB15 as the source input for the EXTI15 external interrupt
2: PC15: Select PC15 as the source input for the EXTI15 external interrupt
3: PD15: Select PD15 as the source input for the EXTI15 external interrupt
4: PE15: Select PE15 as the source input for the EXTI15 external interrupt

CFGR3

SYSCFG configuration register 3

Offset: 0x20, size: 32, reset: 0x00000000, access: Unspecified

8/12 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
REF_LOCK w	VREFINT_RDYF r	VREFINT_COMP_RDYF r	VREFINT_ADC_RDYF r	SENSOR_ADC_RDYF r	REF_RC48MHz_RDYF r
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
		ENREF_RC48MHz rw	ENBUF_VREFINT_COMP rw			ENBUF_SENSOR_ADC rw	ENBUF_BGAP_ADC rw			SEL_VREF_OUT rw					EN_BGAP rw

Toggle fields

EN_BGAP

Bit 0: Vref Enable bit.

SEL_VREF_OUT

Bits 4-5: BGAP_ADC connection bit.

Allowed values:
0: NoConnection: no pad connected
1: PB0: PB0 connected
2: PB1: PB1 connected
3: Both: PB0 and PB1 connected

ENBUF_BGAP_ADC

Bit 8: VREFINT reference for ADC enable bit.

ENBUF_SENSOR_ADC

Bit 9: Sensor reference for ADC enable bit.

Allowed values:
0: Disabled: Disables the buffer used to generate VREFINT reference for the temperature sensor
1: Enabled: Enables the buffer used to generate VREFINT reference for the temperature sensor

ENBUF_VREFINT_COMP

Bit 12: VREFINT reference for comparator 2 enable bit.

ENREF_RC48MHz

Bit 13: VREFINT reference for 48 MHz RC oscillator enable bit.

REF_RC48MHz_RDYF

Bit 26: VREFINT for 48 MHz RC oscillator ready flag.

SENSOR_ADC_RDYF

Bit 27: Sensor for ADC ready flag.

VREFINT_ADC_RDYF

Bit 28: VREFINT for ADC ready flag.

VREFINT_COMP_RDYF

Bit 29: VREFINT for comparator ready flag.

VREFINT_RDYF

Bit 30: VREFINT ready flag.

Allowed values:
0: NotReady: VREFINT OFF
1: Ready: VREFINT ready

REF_LOCK

Bit 31: REF_CTRL lock bit.

Allowed values:
0: ReadWrite: SYSCFG_CFGR3[31:0] bits are read/write
1: ReadOnly: SYSCFG_CFGR3[31:0] bits are read-only

TIM2

0x40000000: General-purpose-timers

94/102 fields covered.

Toggle register map

Offset	Name	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
0x0	CR1							CKD		ARPE	CMS		DIR	OPM	URS	UDIS	CEN
0x4	CR2									TI1S	MMS			CCDS
0x8	SMCR	ETP	ECE	ETPS		ETF				MSM	TS				SMS
0xc	DIER		TDE		CC[4]DE	CC[3]DE	CC[2]DE	CC[1]DE	UDE		TIE		CC[4]IE	CC[3]IE	CC[2]IE	CC[1]IE	UIE
0x10	SR				CC[4]OF	CC[3]OF	CC[2]OF	CC[1]OF			TIF		CC[4]IF	CC[3]IF	CC[2]IF	CC[1]IF	UIF
0x14	EGR										TG		CC[4]G	CC[3]G	CC[2]G	CC[1]G	UG
0x18	CCMR1_Input	IC[2]F				IC[2]PSC		CC[2]S		IC[1]F				IC[1]PSC		CC[1]S
0x18	CCMR1_Output	OC[2]CE	OC[2]M			OC[2]PE	OC[2]FE	CC[2]S		OC[1]CE	OC[1]M			OC[1]PE	OC[1]FE	CC[1]S
0x1c	CCMR2_Input	IC[4]F				IC[4]PSC		CC[4]S		IC[3]F				IC[3]PSC		CC[3]S
0x1c	CCMR2_Output	OC[4]CE	OC[4]M			OC[4]PE	OC[4]FE	CC[4]S		OC[3]CE	OC[3]M			OC[3]PE	OC[3]FE	CC[3]S
0x20	CCER	CC[4]NP		CC[4]P	CC[4]E	CC[3]NP		CC[3]P	CC[3]E	CC[2]NP		CC[2]P	CC[2]E	CC[1]NP		CC[1]P	CC[1]E
0x24 (16-bit)	CNT	CNT
0x28	PSC	PSC
0x2c (16-bit)	ARR	ARR
0x34 (16-bit)	CCR[1]	CCR
0x38 (16-bit)	CCR[2]	CCR
0x3c (16-bit)	CCR[3]	CCR
0x40 (16-bit)	CCR[4]	CCR
0x48	DCR				DBL								DBA
0x4c	DMAR	DMAB
0x50	OR												TI4_RMP		ETR_RMP

Toggle registers

CR1

control register 1

Offset: 0x0, size: 32, reset: 0x00000000, access: read-write

8/8 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
						CKD rw		ARPE rw	CMS rw		DIR rw	OPM rw	URS rw	UDIS rw	CEN rw

Toggle fields

CEN

Bit 0: Counter enable.

Allowed values:
0: Disabled: Counter disabled
1: Enabled: Counter enabled

UDIS

Bit 1: Update disable.

Allowed values:
0: Enabled: Update event enabled
1: Disabled: Update event disabled

URS

Bit 2: Update request source.

Allowed values:
0: AnyEvent: Any of counter overflow/underflow, setting UG, or update through slave mode, generates an update interrupt or DMA request
1: CounterOnly: Only counter overflow/underflow generates an update interrupt or DMA request

OPM

Bit 3: One-pulse mode.

Allowed values:
0: Disabled: Counter is not stopped at update event
1: Enabled: Counter stops counting at the next update event (clearing the CEN bit)

DIR

Bit 4: Direction.

Allowed values:
0: Up: Counter used as upcounter
1: Down: Counter used as downcounter

CMS

Bits 5-6: Center-aligned mode selection.

Allowed values:
0: EdgeAligned: The counter counts up or down depending on the direction bit
1: CenterAligned1: The counter counts up and down alternatively. Output compare interrupt flags are set only when the counter is counting down.
2: CenterAligned2: The counter counts up and down alternatively. Output compare interrupt flags are set only when the counter is counting up.
3: CenterAligned3: The counter counts up and down alternatively. Output compare interrupt flags are set both when the counter is counting up or down.

ARPE

Bit 7: Auto-reload preload enable.

Allowed values:
0: Disabled: TIMx_APRR register is not buffered
1: Enabled: TIMx_APRR register is buffered

CKD

Bits 8-9: Clock division.

Allowed values:
0: Div1: t_DTS = t_CK_INT
1: Div2: t_DTS = 2 × t_CK_INT
2: Div4: t_DTS = 4 × t_CK_INT

CR2

control register 2

Offset: 0x4, size: 32, reset: 0x00000000, access: read-write

3/3 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
								TI1S rw	MMS rw			CCDS rw

Toggle fields

CCDS

Bit 3: Capture/compare DMA selection.

Allowed values:
0: OnCompare: CCx DMA request sent when CCx event occurs
1: OnUpdate: CCx DMA request sent when update event occurs

MMS

Bits 4-6: Master mode selection.

Allowed values:
0: Reset: The UG bit from the TIMx_EGR register is used as trigger output
1: Enable: The counter enable signal, CNT_EN, is used as trigger output
2: Update: The update event is selected as trigger output
3: ComparePulse: The trigger output send a positive pulse when the CC1IF flag it to be set, as soon as a capture or a compare match occurred
4: CompareOC1: OC1REF signal is used as trigger output
5: CompareOC2: OC2REF signal is used as trigger output
6: CompareOC3: OC3REF signal is used as trigger output
7: CompareOC4: OC4REF signal is used as trigger output

TI1S

Bit 7: TI1 selection.

Allowed values:
0: Normal: The TIMx_CH1 pin is connected to TI1 input
1: XOR: The TIMx_CH1, CH2, CH3 pins are connected to TI1 input

SMCR

slave mode control register

Offset: 0x8, size: 32, reset: 0x00000000, access: read-write

7/7 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
ETP rw	ECE rw	ETPS rw		ETF rw				MSM rw	TS rw				SMS rw

Toggle fields

SMS

Bits 0-2: Slave mode selection.

Allowed values:
0: Disabled: Slave mode disabled - if CEN = ‘1 then the prescaler is clocked directly by the internal clock.
1: Encoder_Mode_1: Encoder mode 1 - Counter counts up/down on TI2FP1 edge depending on TI1FP2 level.
2: Encoder_Mode_2: Encoder mode 2 - Counter counts up/down on TI1FP2 edge depending on TI2FP1 level.
3: Encoder_Mode_3: Encoder mode 3 - Counter counts up/down on both TI1FP1 and TI2FP2 edges depending on the level of the other input.
4: Reset_Mode: Reset Mode - Rising edge of the selected trigger input (TRGI) reinitializes the counter and generates an update of the registers.
5: Gated_Mode: Gated Mode - The counter clock is enabled when the trigger input (TRGI) is high. The counter stops (but is not reset) as soon as the trigger becomes low. Both start and stop of the counter are controlled.
6: Trigger_Mode: Trigger Mode - The counter starts at a rising edge of the trigger TRGI (but it is not reset). Only the start of the counter is controlled.
7: Ext_Clock_Mode: External Clock Mode 1 - Rising edges of the selected trigger (TRGI) clock the counter.

TS

Bits 4-6: Trigger selection.

Allowed values:
0: ITR0: Internal Trigger 0 (ITR0)
1: ITR1: Internal Trigger 1 (ITR1)
2: ITR2: Internal Trigger 2 (ITR2)
4: TI1F_ED: TI1 Edge Detector (TI1F_ED)
5: TI1FP1: Filtered Timer Input 1 (TI1FP1)
6: TI2FP2: Filtered Timer Input 2 (TI2FP2)
7: ETRF: External Trigger input (ETRF)

MSM

Bit 7: Master/Slave mode.

Allowed values:
0: NoSync: No action
1: Sync: The effect of an event on the trigger input (TRGI) is delayed to allow a perfect synchronization between the current timer and its slaves (through TRGO). It is useful if we want to synchronize several timers on a single external event.

ETF

Bits 8-11: External trigger filter.

Allowed values:
0: NoFilter: No filter, sampling is done at fDTS
1: FCK_INT_N2: fSAMPLING=fCK_INT, N=2
2: FCK_INT_N4: fSAMPLING=fCK_INT, N=4
3: FCK_INT_N8: fSAMPLING=fCK_INT, N=8
4: FDTS_Div2_N6: fSAMPLING=fDTS/2, N=6
5: FDTS_Div2_N8: fSAMPLING=fDTS/2, N=8
6: FDTS_Div4_N6: fSAMPLING=fDTS/4, N=6
7: FDTS_Div4_N8: fSAMPLING=fDTS/4, N=8
8: FDTS_Div8_N6: fSAMPLING=fDTS/8, N=6
9: FDTS_Div8_N8: fSAMPLING=fDTS/8, N=8
10: FDTS_Div16_N5: fSAMPLING=fDTS/16, N=5
11: FDTS_Div16_N6: fSAMPLING=fDTS/16, N=6
12: FDTS_Div16_N8: fSAMPLING=fDTS/16, N=8
13: FDTS_Div32_N5: fSAMPLING=fDTS/32, N=5
14: FDTS_Div32_N6: fSAMPLING=fDTS/32, N=6
15: FDTS_Div32_N8: fSAMPLING=fDTS/32, N=8

ETPS

Bits 12-13: External trigger prescaler.

Allowed values:
0: Div1: Prescaler OFF
1: Div2: ETRP frequency divided by 2
2: Div4: ETRP frequency divided by 4
3: Div8: ETRP frequency divided by 8

ECE

Bit 14: External clock enable.

Allowed values:
0: Disabled: External clock mode 2 disabled
1: Enabled: External clock mode 2 enabled. The counter is clocked by any active edge on the ETRF signal.

ETP

Bit 15: External trigger polarity.

Allowed values:
0: NotInverted: ETR is noninverted, active at high level or rising edge
1: Inverted: ETR is inverted, active at low level or falling edge

DIER

DMA/Interrupt enable register

Offset: 0xc, size: 32, reset: 0x00000000, access: read-write

12/12 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
	TDE rw		CC[4]DE rw	CC[3]DE rw	CC[2]DE rw	CC[1]DE rw	UDE rw		TIE rw		CC[4]IE rw	CC[3]IE rw	CC[2]IE rw	CC[1]IE rw	UIE rw

Toggle fields

UIE

Bit 0: Update interrupt enable.

Allowed values:
0: Disabled: Update interrupt disabled
1: Enabled: Update interrupt enabled

CC[1]IE

Bit 1: Capture/Compare 1 interrupt enable.

Allowed values:
0: Disabled: CCx interrupt disabled
1: Enabled: CCx interrupt enabled

CC[2]IE

Bit 2: Capture/Compare 2 interrupt enable.

Allowed values:
0: Disabled: CCx interrupt disabled
1: Enabled: CCx interrupt enabled

CC[3]IE

Bit 3: Capture/Compare 3 interrupt enable.

Allowed values:
0: Disabled: CCx interrupt disabled
1: Enabled: CCx interrupt enabled

CC[4]IE

Bit 4: Capture/Compare 4 interrupt enable.

Allowed values:
0: Disabled: CCx interrupt disabled
1: Enabled: CCx interrupt enabled

TIE

Bit 6: Trigger interrupt enable.

Allowed values:
0: Disabled: Trigger interrupt disabled
1: Enabled: Trigger interrupt enabled

UDE

Bit 8: Update DMA request enable.

Allowed values:
0: Disabled: Update DMA request disabled
1: Enabled: Update DMA request enabled

CC[1]DE

Bit 9: Capture/Compare 1 DMA request enable.

Allowed values:
0: Disabled: CCx DMA request disabled
1: Enabled: CCx DMA request enabled

CC[2]DE

Bit 10: Capture/Compare 2 DMA request enable.

Allowed values:
0: Disabled: CCx DMA request disabled
1: Enabled: CCx DMA request enabled

CC[3]DE

Bit 11: Capture/Compare 3 DMA request enable.

Allowed values:
0: Disabled: CCx DMA request disabled
1: Enabled: CCx DMA request enabled

CC[4]DE

Bit 12: Capture/Compare 4 DMA request enable.

Allowed values:
0: Disabled: CCx DMA request disabled
1: Enabled: CCx DMA request enabled

TDE

Bit 14: Trigger DMA request enable.

Allowed values:
0: Disabled: Trigger DMA request disabled
1: Enabled: Trigger DMA request enabled

SR

status register

Offset: 0x10, size: 32, reset: 0x00000000, access: read-write

10/10 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
			CC[4]OF rw	CC[3]OF rw	CC[2]OF rw	CC[1]OF rw			TIF rw		CC[4]IF rw	CC[3]IF rw	CC[2]IF rw	CC[1]IF rw	UIF rw

Toggle fields

UIF

Bit 0: Update interrupt flag.

Allowed values:
0: NoUpdateOccurred: No update occurred
1: UpdatePending: Update interrupt pending

CC[1]IF

Bit 1: Capture/compare 1 interrupt flag.

Allowed values:
1: Match: If CC1 is an output: The content of the counter TIMx_CNT matches the content of the TIMx_CCR1 register. If CC1 is an input: The counter value has been captured in TIMx_CCR1 register.

CC[2]IF

Bit 2: Capture/compare 2 interrupt flag.

Allowed values:
1: Match: If CC1 is an output: The content of the counter TIMx_CNT matches the content of the TIMx_CCR1 register. If CC1 is an input: The counter value has been captured in TIMx_CCR1 register.

CC[3]IF

Bit 3: Capture/compare 3 interrupt flag.

Allowed values:
1: Match: If CC1 is an output: The content of the counter TIMx_CNT matches the content of the TIMx_CCR1 register. If CC1 is an input: The counter value has been captured in TIMx_CCR1 register.

CC[4]IF

Bit 4: Capture/compare 4 interrupt flag.

Allowed values:
1: Match: If CC1 is an output: The content of the counter TIMx_CNT matches the content of the TIMx_CCR1 register. If CC1 is an input: The counter value has been captured in TIMx_CCR1 register.

TIF

Bit 6: Trigger interrupt flag.

Allowed values:
0: NoTrigger: No trigger event occurred
1: Trigger: Trigger interrupt pending

CC[1]OF

Bit 9: Capture/Compare 1 overcapture flag.

Allowed values:
1: Overcapture: The counter value has been captured in TIMx_CCRx register while CCxIF flag was already set

CC[2]OF

Bit 10: Capture/Compare 2 overcapture flag.

Allowed values:
1: Overcapture: The counter value has been captured in TIMx_CCRx register while CCxIF flag was already set

CC[3]OF

Bit 11: Capture/Compare 3 overcapture flag.

Allowed values:
1: Overcapture: The counter value has been captured in TIMx_CCRx register while CCxIF flag was already set

CC[4]OF

Bit 12: Capture/Compare 4 overcapture flag.

Allowed values:
1: Overcapture: The counter value has been captured in TIMx_CCRx register while CCxIF flag was already set

EGR

event generation register

Offset: 0x14, size: 32, reset: 0x00000000, access: write-only

6/6 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
									TG w		CC[4]G w	CC[3]G w	CC[2]G w	CC[1]G w	UG w

Toggle fields

UG

Bit 0: Update generation.

Allowed values:
1: Update: Re-initializes the timer counter and generates an update of the registers.

CC[1]G

Bit 1: Capture/compare 1 generation.

Allowed values:
1: Trigger: If CC1 is an output: CC1IF flag is set, Corresponding interrupt or DMA request is sent if enabled. If CC1 is an input: The current value of the counter is captured in TIMx_CCR1 register.

CC[2]G

Bit 2: Capture/compare 2 generation.

Allowed values:
1: Trigger: If CC1 is an output: CC1IF flag is set, Corresponding interrupt or DMA request is sent if enabled. If CC1 is an input: The current value of the counter is captured in TIMx_CCR1 register.

CC[3]G

Bit 3: Capture/compare 3 generation.

Allowed values:
1: Trigger: If CC1 is an output: CC1IF flag is set, Corresponding interrupt or DMA request is sent if enabled. If CC1 is an input: The current value of the counter is captured in TIMx_CCR1 register.

CC[4]G

Bit 4: Capture/compare 4 generation.

Allowed values:
1: Trigger: If CC1 is an output: CC1IF flag is set, Corresponding interrupt or DMA request is sent if enabled. If CC1 is an input: The current value of the counter is captured in TIMx_CCR1 register.

TG

Bit 6: Trigger generation.

Allowed values:
1: Trigger: The TIF flag is set in TIMx_SR register. Related interrupt or DMA transfer can occur if enabled.

CCMR1_Input

capture/compare mode register 1 (input mode)

Offset: 0x18, size: 32, reset: 0x00000000, access: read-write

6/6 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
IC[2]F rw				IC[2]PSC rw		CC[2]S rw		IC[1]F rw				IC[1]PSC rw		CC[1]S rw

Toggle fields

CC[1]S

Bits 0-1: Capture/Compare 1 selection.

Allowed values:
1: TI1: CC1 channel is configured as input, IC1 is mapped on TI1
2: TI2: CC1 channel is configured as input, IC1 is mapped on TI2
3: TRC: CC1 channel is configured as input, IC1 is mapped on TRC

IC[1]PSC

Bits 2-3: Input capture 1 prescaler.

Allowed values:
0: NoPrescaler: no prescaler, capture is done each time an edge is detected on the capture input
1: Two_Events: Capture is done once every 2 events
2: Four_Events: Capture is done once every 4 events
3: Eight_Events: Capture is done once every 8 events

IC[1]F

Bits 4-7: Input capture 1 filter.

Allowed values:
0: NoFilter: No filter, sampling is done at fDTS
1: FCK_INT_N2: fSAMPLING=fCK_INT, N=2
2: FCK_INT_N4: fSAMPLING=fCK_INT, N=4
3: FCK_INT_N8: fSAMPLING=fCK_INT, N=8
4: FDTS_Div2_N6: fSAMPLING=fDTS/2, N=6
5: FDTS_Div2_N8: fSAMPLING=fDTS/2, N=8
6: FDTS_Div4_N6: fSAMPLING=fDTS/4, N=6
7: FDTS_Div4_N8: fSAMPLING=fDTS/4, N=8
8: FDTS_Div8_N6: fSAMPLING=fDTS/8, N=6
9: FDTS_Div8_N8: fSAMPLING=fDTS/8, N=8
10: FDTS_Div16_N5: fSAMPLING=fDTS/16, N=5
11: FDTS_Div16_N6: fSAMPLING=fDTS/16, N=6
12: FDTS_Div16_N8: fSAMPLING=fDTS/16, N=8
13: FDTS_Div32_N5: fSAMPLING=fDTS/32, N=5
14: FDTS_Div32_N6: fSAMPLING=fDTS/32, N=6
15: FDTS_Div32_N8: fSAMPLING=fDTS/32, N=8

CC[2]S

Bits 8-9: Capture/Compare 2 selection.

Allowed values:
1: TI1: CC1 channel is configured as input, IC1 is mapped on TI1
2: TI2: CC1 channel is configured as input, IC1 is mapped on TI2
3: TRC: CC1 channel is configured as input, IC1 is mapped on TRC

IC[2]PSC

Bits 10-11: Input capture 2 prescaler.

Allowed values:
0: NoPrescaler: no prescaler, capture is done each time an edge is detected on the capture input
1: Two_Events: Capture is done once every 2 events
2: Four_Events: Capture is done once every 4 events
3: Eight_Events: Capture is done once every 8 events

IC[2]F

Bits 12-15: Input capture 2 filter.

Allowed values:
0: NoFilter: No filter, sampling is done at fDTS
1: FCK_INT_N2: fSAMPLING=fCK_INT, N=2
2: FCK_INT_N4: fSAMPLING=fCK_INT, N=4
3: FCK_INT_N8: fSAMPLING=fCK_INT, N=8
4: FDTS_Div2_N6: fSAMPLING=fDTS/2, N=6
5: FDTS_Div2_N8: fSAMPLING=fDTS/2, N=8
6: FDTS_Div4_N6: fSAMPLING=fDTS/4, N=6
7: FDTS_Div4_N8: fSAMPLING=fDTS/4, N=8
8: FDTS_Div8_N6: fSAMPLING=fDTS/8, N=6
9: FDTS_Div8_N8: fSAMPLING=fDTS/8, N=8
10: FDTS_Div16_N5: fSAMPLING=fDTS/16, N=5
11: FDTS_Div16_N6: fSAMPLING=fDTS/16, N=6
12: FDTS_Div16_N8: fSAMPLING=fDTS/16, N=8
13: FDTS_Div32_N5: fSAMPLING=fDTS/32, N=5
14: FDTS_Div32_N6: fSAMPLING=fDTS/32, N=6
15: FDTS_Div32_N8: fSAMPLING=fDTS/32, N=8

CCMR1_Output

capture/compare mode register 1 (output mode)

Offset: 0x18, size: 32, reset: 0x00000000, access: read-write

6/10 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
OC[2]CE rw	OC[2]M rw			OC[2]PE rw	OC[2]FE rw	CC[2]S rw		OC[1]CE rw	OC[1]M rw			OC[1]PE rw	OC[1]FE rw	CC[1]S rw

Toggle fields

CC[1]S

Bits 0-1: Capture/Compare 1 selection.

Allowed values:
0: Output: CC1 channel is configured as output

OC[1]FE

Bit 2: Output compare 1 fast enable.

OC[1]PE

Bit 3: Output compare 1 preload enable.

Allowed values:
0: Disabled: Preload register on CCR1 disabled. New values written to CCR1 are taken into account immediately
1: Enabled: Preload register on CCR1 enabled. Preload value is loaded into active register on each update event

OC[1]M

Bits 4-6: Output compare 1 mode.

Allowed values:
0: Frozen: The comparison between the output compare register TIMx_CCRy and the counter TIMx_CNT has no effect on the outputs
1: ActiveOnMatch: Set channel to active level on match. OCyREF signal is forced high when the counter matches the capture/compare register
2: InactiveOnMatch: Set channel to inactive level on match. OCyREF signal is forced low when the counter matches the capture/compare register
3: Toggle: OCyREF toggles when TIMx_CNT=TIMx_CCRy
4: ForceInactive: OCyREF is forced low
5: ForceActive: OCyREF is forced high
6: PwmMode1: In upcounting, channel is active as long as TIMx_CNT<TIMx_CCRy else inactive. In downcounting, channel is inactive as long as TIMx_CNT>TIMx_CCRy else active
7: PwmMode2: Inversely to PwmMode1

OC[1]CE

Bit 7: Output compare 1 clear enable.

CC[2]S

Bits 8-9: Capture/Compare 2 selection.

Allowed values:
0: Output: CC1 channel is configured as output

OC[2]FE

Bit 10: Output compare 2 fast enable.

OC[2]PE

Bit 11: Output compare 2 preload enable.

Allowed values:
0: Disabled: Preload register on CCR1 disabled. New values written to CCR1 are taken into account immediately
1: Enabled: Preload register on CCR1 enabled. Preload value is loaded into active register on each update event

OC[2]M

Bits 12-14: Output compare 2 mode.

Allowed values:
0: Frozen: The comparison between the output compare register TIMx_CCRy and the counter TIMx_CNT has no effect on the outputs
1: ActiveOnMatch: Set channel to active level on match. OCyREF signal is forced high when the counter matches the capture/compare register
2: InactiveOnMatch: Set channel to inactive level on match. OCyREF signal is forced low when the counter matches the capture/compare register
3: Toggle: OCyREF toggles when TIMx_CNT=TIMx_CCRy
4: ForceInactive: OCyREF is forced low
5: ForceActive: OCyREF is forced high
6: PwmMode1: In upcounting, channel is active as long as TIMx_CNT<TIMx_CCRy else inactive. In downcounting, channel is inactive as long as TIMx_CNT>TIMx_CCRy else active
7: PwmMode2: Inversely to PwmMode1

OC[2]CE

Bit 15: Output compare 2 clear enable.

CCMR2_Input

capture/compare mode register 2 (input mode)

Offset: 0x1c, size: 32, reset: 0x00000000, access: read-write

6/6 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
IC[4]F rw				IC[4]PSC rw		CC[4]S rw		IC[3]F rw				IC[3]PSC rw		CC[3]S rw

Toggle fields

CC[3]S

Bits 0-1: Capture/Compare 3 selection.

Allowed values:
1: TI3: CC3 channel is configured as input, IC3 is mapped on TI3
2: TI4: CC3 channel is configured as input, IC3 is mapped on TI4
3: TRC: CC3 channel is configured as input, IC3 is mapped on TRC

IC[3]PSC

Bits 2-3: Input capture 3 prescaler.

Allowed values: 0x0-0x3

IC[3]F

Bits 4-7: Input capture 3 filter.

Allowed values: 0x0-0xf

CC[4]S

Bits 8-9: Capture/Compare 4 selection.

Allowed values:
1: TI3: CC3 channel is configured as input, IC3 is mapped on TI3
2: TI4: CC3 channel is configured as input, IC3 is mapped on TI4
3: TRC: CC3 channel is configured as input, IC3 is mapped on TRC

IC[4]PSC

Bits 10-11: Input capture 4 prescaler.

Allowed values: 0x0-0x3

IC[4]F

Bits 12-15: Input capture 4 filter.

Allowed values: 0x0-0xf

CCMR2_Output

capture/compare mode register 2 (output mode)

Offset: 0x1c, size: 32, reset: 0x00000000, access: read-write

6/10 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
OC[4]CE rw	OC[4]M rw			OC[4]PE rw	OC[4]FE rw	CC[4]S rw		OC[3]CE rw	OC[3]M rw			OC[3]PE rw	OC[3]FE rw	CC[3]S rw

Toggle fields

CC[3]S

Bits 0-1: Capture/Compare 3 selection.

Allowed values:
0: Output: CC3 channel is configured as output

OC[3]FE

Bit 2: Output compare 3 fast enable.

OC[3]PE

Bit 3: Output compare 3 preload enable.

Allowed values:
0: Disabled: Preload register on CCR3 disabled. New values written to CCR3 are taken into account immediately
1: Enabled: Preload register on CCR3 enabled. Preload value is loaded into active register on each update event

OC[3]M

Bits 4-6: Output compare 3 mode.

Allowed values:
0: Frozen: The comparison between the output compare register TIMx_CCRy and the counter TIMx_CNT has no effect on the outputs
1: ActiveOnMatch: Set channel to active level on match. OCyREF signal is forced high when the counter matches the capture/compare register
2: InactiveOnMatch: Set channel to inactive level on match. OCyREF signal is forced low when the counter matches the capture/compare register
3: Toggle: OCyREF toggles when TIMx_CNT=TIMx_CCRy
4: ForceInactive: OCyREF is forced low
5: ForceActive: OCyREF is forced high
6: PwmMode1: In upcounting, channel is active as long as TIMx_CNT<TIMx_CCRy else inactive. In downcounting, channel is inactive as long as TIMx_CNT>TIMx_CCRy else active
7: PwmMode2: Inversely to PwmMode1

OC[3]CE

Bit 7: Output compare 3 clear enable.

CC[4]S

Bits 8-9: Capture/Compare 4 selection.

Allowed values:
0: Output: CC3 channel is configured as output

OC[4]FE

Bit 10: Output compare 4 fast enable.

OC[4]PE

Bit 11: Output compare 4 preload enable.

Allowed values:
0: Disabled: Preload register on CCR3 disabled. New values written to CCR3 are taken into account immediately
1: Enabled: Preload register on CCR3 enabled. Preload value is loaded into active register on each update event

OC[4]M

Bits 12-14: Output compare 4 mode.

Allowed values:
0: Frozen: The comparison between the output compare register TIMx_CCRy and the counter TIMx_CNT has no effect on the outputs
1: ActiveOnMatch: Set channel to active level on match. OCyREF signal is forced high when the counter matches the capture/compare register
2: InactiveOnMatch: Set channel to inactive level on match. OCyREF signal is forced low when the counter matches the capture/compare register
3: Toggle: OCyREF toggles when TIMx_CNT=TIMx_CCRy
4: ForceInactive: OCyREF is forced low
5: ForceActive: OCyREF is forced high
6: PwmMode1: In upcounting, channel is active as long as TIMx_CNT<TIMx_CCRy else inactive. In downcounting, channel is inactive as long as TIMx_CNT>TIMx_CCRy else active
7: PwmMode2: Inversely to PwmMode1

OC[4]CE

Bit 15: Output compare 4 clear enable.

CCER

capture/compare enable register

Offset: 0x20, size: 32, reset: 0x00000000, access: read-write

12/12 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
CC[4]NP rw		CC[4]P rw	CC[4]E rw	CC[3]NP rw		CC[3]P rw	CC[3]E rw	CC[2]NP rw		CC[2]P rw	CC[2]E rw	CC[1]NP rw		CC[1]P rw	CC[1]E rw

Toggle fields

CC[1]E

Bit 0: Capture/Compare 1 output enable.

Allowed values:
0: Disabled: Capture disabled
1: Enabled: Capture enabled

CC[1]P

Bit 1: Capture/Compare 1 output Polarity.

Allowed values:
0: RisingEdge: Noninverted/rising edge
1: FallingEdge: Inverted/falling edge

CC[1]NP

Bit 3: Capture/Compare 1 output Polarity.

Allowed values:
0: Negative: Negative polarity
1: Positive: Positive polarity

CC[2]E

Bit 4: Capture/Compare 2 output enable.

Allowed values:
0: Disabled: Capture disabled
1: Enabled: Capture enabled

CC[2]P

Bit 5: Capture/Compare 2 output Polarity.

Allowed values:
0: RisingEdge: Noninverted/rising edge
1: FallingEdge: Inverted/falling edge

CC[2]NP

Bit 7: Capture/Compare 2 output Polarity.

Allowed values:
0: Negative: Negative polarity
1: Positive: Positive polarity

CC[3]E

Bit 8: Capture/Compare 3 output enable.

Allowed values:
0: Disabled: Capture disabled
1: Enabled: Capture enabled

CC[3]P

Bit 9: Capture/Compare 3 output Polarity.

Allowed values:
0: RisingEdge: Noninverted/rising edge
1: FallingEdge: Inverted/falling edge

CC[3]NP

Bit 11: Capture/Compare 3 output Polarity.

Allowed values:
0: Negative: Negative polarity
1: Positive: Positive polarity

CC[4]E

Bit 12: Capture/Compare 4 output enable.

Allowed values:
0: Disabled: Capture disabled
1: Enabled: Capture enabled

CC[4]P

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
			DBL rw								DBA rw

Toggle fields

DBA

Bits 0-4: DMA base address.

Allowed values: 0x0-0x1f

DBL

Bits 8-12: DMA burst length.

Allowed values: 0x0-0x12

DMAR

DMA address for full transfer

Offset: 0x4c, size: 32, reset: 0x00000000, access: read-write

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
DMAB rw

Toggle fields

DMAB

Bits 0-15: DMA register for burst accesses.

Allowed values: 0x0-0xffff

OR

TIM2 option register

Offset: 0x50, size: 32, reset: 0x00000000, access: read-write

2/2 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
											TI4_RMP rw		ETR_RMP rw

Toggle fields

ETR_RMP

Bits 0-2: Timer2 ETR remap.

Allowed values:
3: HSI: TIM2 ETR input is connected to HSI16 when HSI16OUTEN bit is set
5: LSE: TIM2 ETR input is connected to LSE
6: COMP2_OUT: TIM2 ETR input is connected to COMP2_OUT
7: COMP1_OUT: TIM2 ETR input is connected to COMP1_OUT

TI4_RMP

Bits 3-4: Internal trigger.

Allowed values:
1: COMP2_OUT: TIM2 TI4 input connected to COMP2_OUT
2: COMP1_OUT: TIM2 TI4 input connected to COMP1_OUT

TIM21

0x40010800: General-purpose-timers

56/58 fields covered.

Toggle register map

Offset	Name	15	14	13	11	10	9	7	6	5	4	3	2	1	0
0x0	CR1						CKD	ARPE	CMS		DIR	OPM	URS	UDIS	CEN
0x4	CR2								MMS
0x8	SMCR	ETP	ECE	ETPS	ETF			MSM	TS				SMS
0xc	DIER								TIE				CC[2]IE	CC[1]IE	UIE
0x10	SR					CC[2]OF	CC[1]OF		TIF				CC[2]IF	CC[1]IF	UIF
0x14	EGR								TG				CC[2]G	CC[1]G	UG
0x18	CCMR1_Input	IC[2]F			IC[2]PSC		CC[2]S	IC[1]F				IC[1]PSC		CC[1]S
0x18	CCMR1_Output		OC[2]M		OC[2]PE	OC[2]FE	CC[2]S		OC[1]M			OC[1]PE	OC[1]FE	CC[1]S
0x20	CCER							CC[2]NP		CC[2]P	CC[2]E	CC[1]NP		CC[1]P	CC[1]E
0x24 (16-bit)	CNT	CNT
0x28	PSC	PSC
0x2c (16-bit)	ARR	ARR
0x34	CCR[1]	CCR
0x38	CCR[2]	CCR
0x50	OR									TI2_RMP	TI1_RMP			ETR_RMP

Toggle registers

CR1

control register 1

Offset: 0x0, size: 32, reset: 0x00000000, access: read-write

8/8 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
						CKD rw		ARPE rw	CMS rw		DIR rw	OPM rw	URS rw	UDIS rw	CEN rw

Toggle fields

CEN

Bit 0: Counter enable.

Allowed values:
0: Disabled: Counter disabled
1: Enabled: Counter enabled

UDIS

Bit 1: Update disable.

Allowed values:
0: Enabled: Update event enabled
1: Disabled: Update event disabled

URS

Bit 2: Update request source.

Allowed values:
0: AnyEvent: Any of counter overflow/underflow, setting UG, or update through slave mode, generates an update interrupt or DMA request
1: CounterOnly: Only counter overflow/underflow generates an update interrupt or DMA request

OPM

Bit 3: One-pulse mode.

Allowed values:
0: Disabled: Counter is not stopped at update event
1: Enabled: Counter stops counting at the next update event (clearing the CEN bit)

DIR

Bit 4: Direction.

Allowed values:
0: Up: Counter used as upcounter
1: Down: Counter used as downcounter

CMS

Bits 5-6: Center-aligned mode selection.

Allowed values:
0: EdgeAligned: The counter counts up or down depending on the direction bit
1: CenterAligned1: The counter counts up and down alternatively. Output compare interrupt flags are set only when the counter is counting down.
2: CenterAligned2: The counter counts up and down alternatively. Output compare interrupt flags are set only when the counter is counting up.
3: CenterAligned3: The counter counts up and down alternatively. Output compare interrupt flags are set both when the counter is counting up or down.

ARPE

Bit 7: Auto-reload preload enable.

Allowed values:
0: Disabled: TIMx_APRR register is not buffered
1: Enabled: TIMx_APRR register is buffered

CKD

Bits 8-9: Clock division.

Allowed values:
0: Div1: t_DTS = t_CK_INT
1: Div2: t_DTS = 2 × t_CK_INT
2: Div4: t_DTS = 4 × t_CK_INT

CR2

control register 2

Offset: 0x4, size: 32, reset: 0x00000000, access: read-write

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
									MMS rw

Toggle fields

MMS

Bits 4-6: Master mode selection.

Allowed values:
0: Reset: Reset - the UG bit from the TIMx_EGR register is used as trigger output (TRGO)
1: Enable: Enable - the Counter enable signal, CNT_EN, is used as trigger output (TRGO)
2: Update: Update - The update event is selected as trigger output (TRGO)
3: ComparePulse: Compare Pulse - The trigger output send a positive pulse when the CC1IF flag is to be set (even if it was already high), as soon as a capture or a compare match occurred
4: OC1REF: OC1REF signal is used as trigger output (TRGO)
5: OC2REF: OC2REF signal is used as trigger output (TRGO)

SMCR

slave mode control register

Offset: 0x8, size: 32, reset: 0x00000000, access: read-write

7/7 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
ETP rw	ECE rw	ETPS rw		ETF rw				MSM rw	TS rw				SMS rw

Toggle fields

SMS

Bits 0-2: Slave mode selection.

Allowed values:
0: Disabled: Slave mode disabled - if CEN = ‘1 then the prescaler is clocked directly by the internal clock.
1: Encoder_Mode_1: Encoder mode 1 - Counter counts up/down on TI2FP1 edge depending on TI1FP2 level.
2: Encoder_Mode_2: Encoder mode 2 - Counter counts up/down on TI1FP2 edge depending on TI2FP1 level.
3: Encoder_Mode_3: Encoder mode 3 - Counter counts up/down on both TI1FP1 and TI2FP2 edges depending on the level of the other input.
4: Reset_Mode: Reset Mode - Rising edge of the selected trigger input (TRGI) reinitializes the counter and generates an update of the registers.
5: Gated_Mode: Gated Mode - The counter clock is enabled when the trigger input (TRGI) is high. The counter stops (but is not reset) as soon as the trigger becomes low. Both start and stop of the counter are controlled.
6: Trigger_Mode: Trigger Mode - The counter starts at a rising edge of the trigger TRGI (but it is not reset). Only the start of the counter is controlled.
7: Ext_Clock_Mode: External Clock Mode 1 - Rising edges of the selected trigger (TRGI) clock the counter.

TS

Bits 4-6: Trigger selection.

Allowed values:
0: ITR0: Internal Trigger 0 (ITR0)
1: ITR1: Internal Trigger 1 (ITR1)
2: ITR2: Internal Trigger 2 (ITR2)
4: TI1F_ED: TI1 Edge Detector (TI1F_ED)
5: TI1FP1: Filtered Timer Input 1 (TI1FP1)
6: TI2FP2: Filtered Timer Input 2 (TI2FP2)
7: ETRF: External Trigger input (ETRF)

MSM

Bit 7: Master/Slave mode.

Allowed values:
0: NoSync: No action
1: Sync: The effect of an event on the trigger input (TRGI) is delayed to allow a perfect synchronization between the current timer and its slaves (through TRGO). It is useful if we want to synchronize several timers on a single external event.

ETF

Bits 8-11: External trigger filter.

Allowed values:
0: NoFilter: No filter, sampling is done at fDTS
1: FCK_INT_N2: fSAMPLING=fCK_INT, N=2
2: FCK_INT_N4: fSAMPLING=fCK_INT, N=4
3: FCK_INT_N8: fSAMPLING=fCK_INT, N=8
4: FDTS_Div2_N6: fSAMPLING=fDTS/2, N=6
5: FDTS_Div2_N8: fSAMPLING=fDTS/2, N=8
6: FDTS_Div4_N6: fSAMPLING=fDTS/4, N=6
7: FDTS_Div4_N8: fSAMPLING=fDTS/4, N=8
8: FDTS_Div8_N6: fSAMPLING=fDTS/8, N=6
9: FDTS_Div8_N8: fSAMPLING=fDTS/8, N=8
10: FDTS_Div16_N5: fSAMPLING=fDTS/16, N=5
11: FDTS_Div16_N6: fSAMPLING=fDTS/16, N=6
12: FDTS_Div16_N8: fSAMPLING=fDTS/16, N=8
13: FDTS_Div32_N5: fSAMPLING=fDTS/32, N=5
14: FDTS_Div32_N6: fSAMPLING=fDTS/32, N=6
15: FDTS_Div32_N8: fSAMPLING=fDTS/32, N=8

ETPS

Bits 12-13: External trigger prescaler.

Allowed values:
0: Div1: Prescaler OFF
1: Div2: ETRP frequency divided by 2
2: Div4: ETRP frequency divided by 4
3: Div8: ETRP frequency divided by 8

ECE

Bit 14: External clock enable.

Allowed values:
0: Disabled: External clock mode 2 disabled
1: Enabled: External clock mode 2 enabled

ETP

Bit 15: External trigger polarity.

Allowed values:
0: RisingEdge: ETR is non-inverted, active at high level or rising edge
1: FallingEdge: ETR is inverted, active at low level or falling edge

DIER

DMA/Interrupt enable register

Offset: 0xc, size: 32, reset: 0x00000000, access: read-write

4/4 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
									TIE rw				CC[2]IE rw	CC[1]IE rw	UIE rw

Toggle fields

UIE

Bit 0: Update interrupt enable.

Allowed values:
0: Disabled: Update interrupt disabled
1: Enabled: Update interrupt enabled

CC[1]IE

Bit 1: Capture/Compare 1 interrupt enable.

Allowed values:
0: Disabled: CCx interrupt disabled
1: Enabled: CCx interrupt enabled

CC[2]IE

Bit 2: Capture/Compare 2 interrupt enable.

Allowed values:
0: Disabled: CCx interrupt disabled
1: Enabled: CCx interrupt enabled

TIE

Bit 6: Trigger interrupt enable.

Allowed values:
0: Disabled: Trigger interrupt disabled
1: Enabled: Trigger interrupt enabled

SR

status register

Offset: 0x10, size: 32, reset: 0x00000000, access: read-write

6/6 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
					CC[2]OF rw	CC[1]OF rw			TIF rw				CC[2]IF rw	CC[1]IF rw	UIF rw

Toggle fields

UIF

Bit 0: Update interrupt flag.

Allowed values:
0: NoUpdateOccurred: No update occurred
1: UpdatePending: Update interrupt pending

CC[1]IF

Bit 1: Capture/compare 1 interrupt flag.

Allowed values:
1: Match: If CC1 is an output: The content of the counter TIMx_CNT matches the content of the TIMx_CCR1 register. If CC1 is an input: The counter value has been captured in TIMx_CCR1 register.

CC[2]IF

Bit 2: Capture/compare 2 interrupt flag.

Allowed values:
1: Match: If CC1 is an output: The content of the counter TIMx_CNT matches the content of the TIMx_CCR1 register. If CC1 is an input: The counter value has been captured in TIMx_CCR1 register.

TIF

Bit 6: Trigger interrupt flag.

Allowed values:
0: NoTrigger: No trigger event occurred
1: Trigger: Trigger interrupt pending

CC[1]OF

Bit 9: Capture/Compare 1 overcapture flag.

Allowed values:
1: Overcapture: The counter value has been captured in TIMx_CCRx register while CCxIF flag was already set

CC[2]OF

Bit 10: Capture/Compare 2 overcapture flag.

Allowed values:
1: Overcapture: The counter value has been captured in TIMx_CCRx register while CCxIF flag was already set

EGR

event generation register

Offset: 0x14, size: 32, reset: 0x00000000, access: write-only

4/4 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
									TG w				CC[2]G w	CC[1]G w	UG w

Toggle fields

UG

Bit 0: Update generation.

Allowed values:
1: Update: Re-initializes the timer counter and generates an update of the registers.

CC[1]G

Bit 1: Capture/compare 1 generation.

Allowed values:
1: Trigger: If CCx is an output: CCxIF flag is set, Corresponding interrupt or DMA request is sent if enabled. If CCx is an input: The current value of the counter is captured in TIMx_CCR1 register.

CC[2]G

Bit 2: Capture/compare 2 generation.

Allowed values:
1: Trigger: If CCx is an output: CCxIF flag is set, Corresponding interrupt or DMA request is sent if enabled. If CCx is an input: The current value of the counter is captured in TIMx_CCR1 register.

TG

Bit 6: Trigger generation.

Allowed values:
1: Trigger: The TIF flag is set in TIMx_SR register. Related interrupt or DMA transfer can occur if enabled.

CCMR1_Input

capture/compare mode register 1 (input mode)

Offset: 0x18, size: 32, reset: 0x00000000, access: read-write

6/6 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
IC[2]F rw				IC[2]PSC rw		CC[2]S rw		IC[1]F rw				IC[1]PSC rw		CC[1]S rw

Toggle fields

CC[1]S

Bits 0-1: Capture/Compare 1 selection.

Allowed values:
0: Output: CCx channel is configured as output
1: TI1: CCx channel is configured as input, ICx is mapped on TI1
2: TI2: CCx channel is configured as input, ICx is mapped on TI2
3: TRC: CCx channel is configured as input, ICx is mapped on TRC

IC[1]PSC

Bits 2-3: Input capture 1 prescaler.

Allowed values: 0x0-0x3

IC[1]F

Bits 4-7: Input capture 1 filter.

Allowed values:
0: NoFilter: No filter, sampling is done at fDTS
1: FCK_INT_N2: fSAMPLING=fCK_INT, N=2
2: FCK_INT_N4: fSAMPLING=fCK_INT, N=4
3: FCK_INT_N8: fSAMPLING=fCK_INT, N=8
4: FDTS_Div2_N6: fSAMPLING=fDTS/2, N=6
5: FDTS_Div2_N8: fSAMPLING=fDTS/2, N=8
6: FDTS_Div4_N6: fSAMPLING=fDTS/4, N=6
7: FDTS_Div4_N8: fSAMPLING=fDTS/4, N=8
8: FDTS_Div8_N6: fSAMPLING=fDTS/8, N=6
9: FDTS_Div8_N8: fSAMPLING=fDTS/8, N=8
10: FDTS_Div16_N5: fSAMPLING=fDTS/16, N=5
11: FDTS_Div16_N6: fSAMPLING=fDTS/16, N=6
12: FDTS_Div16_N8: fSAMPLING=fDTS/16, N=8
13: FDTS_Div32_N5: fSAMPLING=fDTS/32, N=5
14: FDTS_Div32_N6: fSAMPLING=fDTS/32, N=6
15: FDTS_Div32_N8: fSAMPLING=fDTS/32, N=8

CC[2]S

Bits 8-9: Capture/Compare 2 selection.

Allowed values:
0: Output: CCx channel is configured as output
1: TI1: CCx channel is configured as input, ICx is mapped on TI1
2: TI2: CCx channel is configured as input, ICx is mapped on TI2
3: TRC: CCx channel is configured as input, ICx is mapped on TRC

IC[2]PSC

Bits 10-11: Input capture 2 prescaler.

Allowed values: 0x0-0x3

IC[2]F

Bits 12-15: Input capture 2 filter.

Allowed values:
0: NoFilter: No filter, sampling is done at fDTS
1: FCK_INT_N2: fSAMPLING=fCK_INT, N=2
2: FCK_INT_N4: fSAMPLING=fCK_INT, N=4
3: FCK_INT_N8: fSAMPLING=fCK_INT, N=8
4: FDTS_Div2_N6: fSAMPLING=fDTS/2, N=6
5: FDTS_Div2_N8: fSAMPLING=fDTS/2, N=8
6: FDTS_Div4_N6: fSAMPLING=fDTS/4, N=6
7: FDTS_Div4_N8: fSAMPLING=fDTS/4, N=8
8: FDTS_Div8_N6: fSAMPLING=fDTS/8, N=6
9: FDTS_Div8_N8: fSAMPLING=fDTS/8, N=8
10: FDTS_Div16_N5: fSAMPLING=fDTS/16, N=5
11: FDTS_Div16_N6: fSAMPLING=fDTS/16, N=6
12: FDTS_Div16_N8: fSAMPLING=fDTS/16, N=8
13: FDTS_Div32_N5: fSAMPLING=fDTS/32, N=5
14: FDTS_Div32_N6: fSAMPLING=fDTS/32, N=6
15: FDTS_Div32_N8: fSAMPLING=fDTS/32, N=8

CCMR1_Output

capture/compare mode register (output mode)

Offset: 0x18, size: 32, reset: 0x00000000, access: read-write

6/8 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
	OC[2]M rw			OC[2]PE rw	OC[2]FE rw	CC[2]S rw			OC[1]M rw			OC[1]PE rw	OC[1]FE rw	CC[1]S rw

Toggle fields

CC[1]S

Bits 0-1: Capture/Compare 1 selection.

Allowed values:
0: Output: CCx channel is configured as output

OC[1]FE

Bit 2: Output compare 1 fast enable.

OC[1]PE

Bit 3: Output compare 1 preload enable.

Allowed values:
0: Disabled: Preload register on CCRx disabled. New values written to CCRx are taken into account immediately
1: Enabled: Preload register on CCRx enabled. Preload value is loaded into active register on each update event

OC[1]M

Bits 4-6: Output compare 1 mode.

Allowed values:
0: Frozen: The comparison between the output compare register TIMx_CCRy and the counter TIMx_CNT has no effect on the outputs
1: ActiveOnMatch: Set channel to active level on match. OCyREF signal is forced high when the counter matches the capture/compare register
2: InactiveOnMatch: Set channel to inactive level on match. OCyREF signal is forced low when the counter matches the capture/compare register
3: Toggle: OCyREF toggles when TIMx_CNT=TIMx_CCRy
4: ForceInactive: OCyREF is forced low
5: ForceActive: OCyREF is forced high
6: PwmMode1: In upcounting, channel is active as long as TIMx_CNT<TIMx_CCRy else inactive. In downcounting, channel is inactive as long as TIMx_CNT>TIMx_CCRy else active
7: PwmMode2: Inversely to PwmMode1

CC[2]S

Bits 8-9: Capture/Compare 2 selection.

Allowed values:
0: Output: CCx channel is configured as output

OC[2]FE

Bit 10: Output compare 2 fast enable.

OC[2]PE

Bit 11: Output compare 2 preload enable.

Allowed values:
0: Disabled: Preload register on CCRx disabled. New values written to CCRx are taken into account immediately
1: Enabled: Preload register on CCRx enabled. Preload value is loaded into active register on each update event

OC[2]M

Bits 12-14: Output compare 2 mode.

Allowed values:
0: Frozen: The comparison between the output compare register TIMx_CCRy and the counter TIMx_CNT has no effect on the outputs
1: ActiveOnMatch: Set channel to active level on match. OCyREF signal is forced high when the counter matches the capture/compare register
2: InactiveOnMatch: Set channel to inactive level on match. OCyREF signal is forced low when the counter matches the capture/compare register
3: Toggle: OCyREF toggles when TIMx_CNT=TIMx_CCRy
4: ForceInactive: OCyREF is forced low
5: ForceActive: OCyREF is forced high
6: PwmMode1: In upcounting, channel is active as long as TIMx_CNT<TIMx_CCRy else inactive. In downcounting, channel is inactive as long as TIMx_CNT>TIMx_CCRy else active
7: PwmMode2: Inversely to PwmMode1

CCER

capture/compare enable register

Offset: 0x20, size: 32, reset: 0x00000000, access: read-write

6/6 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
								CC[2]NP rw		CC[2]P rw	CC[2]E rw	CC[1]NP rw		CC[1]P rw	CC[1]E rw

Toggle fields

CC[1]E

Bit 0: Capture/Compare 1 output enable.

Allowed values:
0: Disabled: Capture disabled
1: Enabled: Capture enabled

CC[1]P

Bit 1: Capture/Compare 1 output Polarity.

Allowed values:
0: RisingEdge: Noninverted/rising edge
1: FallingEdge: Inverted/falling edge

CC[1]NP

Bit 3: Capture/Compare 1 output Polarity.

Allowed values:
0: Negative: Negative polarity
1: Positive: Positive polarity

CC[2]E

Bit 4: Capture/Compare 2 output enable.

Allowed values:
0: Disabled: Capture disabled
1: Enabled: Capture enabled

CC[2]P

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
										TI2_RMP rw	TI1_RMP rw			ETR_RMP rw

Toggle fields

ETR_RMP

Bits 0-1: Timer21 ETR remap.

Allowed values:
0: GPIO: TIM2x ETR input connected to GPIO
1: COMP2_OUT: TIM2x ETR input connected to COMP2_OUT
2: COMP1_OUT: TIM2x ETR input connected to COMP1_OUT
3: LSE: TIM2x ETR input connected to LSE clock

TI1_RMP

Bits 2-4: Timer21 TI1.

Allowed values:
0: GPIO: TIM2x TI1 input connected to GPIO
1: COMP2_OUT: TIM2x TI1 input connected to COMP2_OUT
2: COMP1_OUT: TIM2x TI1 input connected to COMP1_OUT

TI2_RMP

Bit 5: Timer21 TI2.

Allowed values:
0: GPIO: TIM2x TI2 input connected to GPIO
1: COMP2_OUT: TIM2x TI2 input connected to COMP2_OUT

TIM22

0x40011400: General-purpose-timers

55/57 fields covered.

Toggle register map

Offset	Name	15	14	13	11	10	9	7	6	5	4	3	2	1	0
0x0	CR1						CKD	ARPE	CMS		DIR	OPM	URS	UDIS	CEN
0x4	CR2								MMS
0x8	SMCR	ETP	ECE	ETPS	ETF			MSM	TS				SMS
0xc	DIER								TIE				CC[2]IE	CC[1]IE	UIE
0x10	SR					CC[2]OF	CC[1]OF		TIF				CC[2]IF	CC[1]IF	UIF
0x14	EGR								TG				CC[2]G	CC[1]G	UG
0x18	CCMR1_Input	IC[2]F			IC[2]PSC		CC[2]S	IC[1]F				IC[1]PSC		CC[1]S
0x18	CCMR1_Output		OC[2]M		OC[2]PE	OC[2]FE	CC[2]S		OC[1]M			OC[1]PE	OC[1]FE	CC[1]S
0x20	CCER							CC[2]NP		CC[2]P	CC[2]E	CC[1]NP		CC[1]P	CC[1]E
0x24 (16-bit)	CNT	CNT
0x28	PSC	PSC
0x2c (16-bit)	ARR	ARR
0x34	CCR[1]	CCR
0x38	CCR[2]	CCR
0x50	OR											TI1_RMP		ETR_RMP

Toggle registers

CR1

control register 1

Offset: 0x0, size: 32, reset: 0x00000000, access: read-write

8/8 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
						CKD rw		ARPE rw	CMS rw		DIR rw	OPM rw	URS rw	UDIS rw	CEN rw

Toggle fields

CEN

Bit 0: Counter enable.

Allowed values:
0: Disabled: Counter disabled
1: Enabled: Counter enabled

UDIS

Bit 1: Update disable.

Allowed values:
0: Enabled: Update event enabled
1: Disabled: Update event disabled

URS

Bit 2: Update request source.

Allowed values:
0: AnyEvent: Any of counter overflow/underflow, setting UG, or update through slave mode, generates an update interrupt or DMA request
1: CounterOnly: Only counter overflow/underflow generates an update interrupt or DMA request

OPM

Bit 3: One-pulse mode.

Allowed values:
0: Disabled: Counter is not stopped at update event
1: Enabled: Counter stops counting at the next update event (clearing the CEN bit)

DIR

Bit 4: Direction.

Allowed values:
0: Up: Counter used as upcounter
1: Down: Counter used as downcounter

CMS

Bits 5-6: Center-aligned mode selection.

Allowed values:
0: EdgeAligned: The counter counts up or down depending on the direction bit
1: CenterAligned1: The counter counts up and down alternatively. Output compare interrupt flags are set only when the counter is counting down.
2: CenterAligned2: The counter counts up and down alternatively. Output compare interrupt flags are set only when the counter is counting up.
3: CenterAligned3: The counter counts up and down alternatively. Output compare interrupt flags are set both when the counter is counting up or down.

ARPE

Bit 7: Auto-reload preload enable.

Allowed values:
0: Disabled: TIMx_APRR register is not buffered
1: Enabled: TIMx_APRR register is buffered

CKD

Bits 8-9: Clock division.

Allowed values:
0: Div1: t_DTS = t_CK_INT
1: Div2: t_DTS = 2 × t_CK_INT
2: Div4: t_DTS = 4 × t_CK_INT

CR2

control register 2

Offset: 0x4, size: 32, reset: 0x00000000, access: read-write

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
									MMS rw

Toggle fields

MMS

Bits 4-6: Master mode selection.

Allowed values:
0: Reset: Reset - the UG bit from the TIMx_EGR register is used as trigger output (TRGO)
1: Enable: Enable - the Counter enable signal, CNT_EN, is used as trigger output (TRGO)
2: Update: Update - The update event is selected as trigger output (TRGO)
3: ComparePulse: Compare Pulse - The trigger output send a positive pulse when the CC1IF flag is to be set (even if it was already high), as soon as a capture or a compare match occurred
4: OC1REF: OC1REF signal is used as trigger output (TRGO)
5: OC2REF: OC2REF signal is used as trigger output (TRGO)

SMCR

slave mode control register

Offset: 0x8, size: 32, reset: 0x00000000, access: read-write

7/7 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
ETP rw	ECE rw	ETPS rw		ETF rw				MSM rw	TS rw				SMS rw

Toggle fields

SMS

Bits 0-2: Slave mode selection.

Allowed values:
0: Disabled: Slave mode disabled - if CEN = ‘1 then the prescaler is clocked directly by the internal clock.
1: Encoder_Mode_1: Encoder mode 1 - Counter counts up/down on TI2FP1 edge depending on TI1FP2 level.
2: Encoder_Mode_2: Encoder mode 2 - Counter counts up/down on TI1FP2 edge depending on TI2FP1 level.
3: Encoder_Mode_3: Encoder mode 3 - Counter counts up/down on both TI1FP1 and TI2FP2 edges depending on the level of the other input.
4: Reset_Mode: Reset Mode - Rising edge of the selected trigger input (TRGI) reinitializes the counter and generates an update of the registers.
5: Gated_Mode: Gated Mode - The counter clock is enabled when the trigger input (TRGI) is high. The counter stops (but is not reset) as soon as the trigger becomes low. Both start and stop of the counter are controlled.
6: Trigger_Mode: Trigger Mode - The counter starts at a rising edge of the trigger TRGI (but it is not reset). Only the start of the counter is controlled.
7: Ext_Clock_Mode: External Clock Mode 1 - Rising edges of the selected trigger (TRGI) clock the counter.

TS

Bits 4-6: Trigger selection.

Allowed values:
0: ITR0: Internal Trigger 0 (ITR0)
1: ITR1: Internal Trigger 1 (ITR1)
2: ITR2: Internal Trigger 2 (ITR2)
4: TI1F_ED: TI1 Edge Detector (TI1F_ED)
5: TI1FP1: Filtered Timer Input 1 (TI1FP1)
6: TI2FP2: Filtered Timer Input 2 (TI2FP2)
7: ETRF: External Trigger input (ETRF)

MSM

Bit 7: Master/Slave mode.

Allowed values:
0: NoSync: No action
1: Sync: The effect of an event on the trigger input (TRGI) is delayed to allow a perfect synchronization between the current timer and its slaves (through TRGO). It is useful if we want to synchronize several timers on a single external event.

ETF

Bits 8-11: External trigger filter.

Allowed values:
0: NoFilter: No filter, sampling is done at fDTS
1: FCK_INT_N2: fSAMPLING=fCK_INT, N=2
2: FCK_INT_N4: fSAMPLING=fCK_INT, N=4
3: FCK_INT_N8: fSAMPLING=fCK_INT, N=8
4: FDTS_Div2_N6: fSAMPLING=fDTS/2, N=6
5: FDTS_Div2_N8: fSAMPLING=fDTS/2, N=8
6: FDTS_Div4_N6: fSAMPLING=fDTS/4, N=6
7: FDTS_Div4_N8: fSAMPLING=fDTS/4, N=8
8: FDTS_Div8_N6: fSAMPLING=fDTS/8, N=6
9: FDTS_Div8_N8: fSAMPLING=fDTS/8, N=8
10: FDTS_Div16_N5: fSAMPLING=fDTS/16, N=5
11: FDTS_Div16_N6: fSAMPLING=fDTS/16, N=6
12: FDTS_Div16_N8: fSAMPLING=fDTS/16, N=8
13: FDTS_Div32_N5: fSAMPLING=fDTS/32, N=5
14: FDTS_Div32_N6: fSAMPLING=fDTS/32, N=6
15: FDTS_Div32_N8: fSAMPLING=fDTS/32, N=8

ETPS

Bits 12-13: External trigger prescaler.

Allowed values:
0: Div1: Prescaler OFF
1: Div2: ETRP frequency divided by 2
2: Div4: ETRP frequency divided by 4
3: Div8: ETRP frequency divided by 8

ECE

Bit 14: External clock enable.

Allowed values:
0: Disabled: External clock mode 2 disabled
1: Enabled: External clock mode 2 enabled

ETP

Bit 15: External trigger polarity.

Allowed values:
0: RisingEdge: ETR is non-inverted, active at high level or rising edge
1: FallingEdge: ETR is inverted, active at low level or falling edge

DIER

DMA/Interrupt enable register

Offset: 0xc, size: 32, reset: 0x00000000, access: read-write

4/4 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
									TIE rw				CC[2]IE rw	CC[1]IE rw	UIE rw

Toggle fields

UIE

Bit 0: Update interrupt enable.

Allowed values:
0: Disabled: Update interrupt disabled
1: Enabled: Update interrupt enabled

CC[1]IE

Bit 1: Capture/Compare 1 interrupt enable.

Allowed values:
0: Disabled: CCx interrupt disabled
1: Enabled: CCx interrupt enabled

CC[2]IE

Bit 2: Capture/Compare 2 interrupt enable.

Allowed values:
0: Disabled: CCx interrupt disabled
1: Enabled: CCx interrupt enabled

TIE

Bit 6: Trigger interrupt enable.

Allowed values:
0: Disabled: Trigger interrupt disabled
1: Enabled: Trigger interrupt enabled

SR

status register

Offset: 0x10, size: 32, reset: 0x00000000, access: read-write

6/6 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
					CC[2]OF rw	CC[1]OF rw			TIF rw				CC[2]IF rw	CC[1]IF rw	UIF rw

Toggle fields

UIF

Bit 0: Update interrupt flag.

Allowed values:
0: NoUpdateOccurred: No update occurred
1: UpdatePending: Update interrupt pending

CC[1]IF

Bit 1: Capture/compare 1 interrupt flag.

Allowed values:
1: Match: If CC1 is an output: The content of the counter TIMx_CNT matches the content of the TIMx_CCR1 register. If CC1 is an input: The counter value has been captured in TIMx_CCR1 register.

CC[2]IF

Bit 2: Capture/compare 2 interrupt flag.

Allowed values:
1: Match: If CC1 is an output: The content of the counter TIMx_CNT matches the content of the TIMx_CCR1 register. If CC1 is an input: The counter value has been captured in TIMx_CCR1 register.

TIF

Bit 6: Trigger interrupt flag.

Allowed values:
0: NoTrigger: No trigger event occurred
1: Trigger: Trigger interrupt pending

CC[1]OF

Bit 9: Capture/Compare 1 overcapture flag.

Allowed values:
1: Overcapture: The counter value has been captured in TIMx_CCRx register while CCxIF flag was already set

CC[2]OF

Bit 10: Capture/Compare 2 overcapture flag.

Allowed values:
1: Overcapture: The counter value has been captured in TIMx_CCRx register while CCxIF flag was already set

EGR

event generation register

Offset: 0x14, size: 32, reset: 0x00000000, access: write-only

4/4 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
									TG w				CC[2]G w	CC[1]G w	UG w

Toggle fields

UG

Bit 0: Update generation.

Allowed values:
1: Update: Re-initializes the timer counter and generates an update of the registers.

CC[1]G

Bit 1: Capture/compare 1 generation.

Allowed values:
1: Trigger: If CCx is an output: CCxIF flag is set, Corresponding interrupt or DMA request is sent if enabled. If CCx is an input: The current value of the counter is captured in TIMx_CCR1 register.

CC[2]G

Bit 2: Capture/compare 2 generation.

Allowed values:
1: Trigger: If CCx is an output: CCxIF flag is set, Corresponding interrupt or DMA request is sent if enabled. If CCx is an input: The current value of the counter is captured in TIMx_CCR1 register.

TG

Bit 6: Trigger generation.

Allowed values:
1: Trigger: The TIF flag is set in TIMx_SR register. Related interrupt or DMA transfer can occur if enabled.

CCMR1_Input

capture/compare mode register 1 (input mode)

Offset: 0x18, size: 32, reset: 0x00000000, access: read-write

6/6 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
IC[2]F rw				IC[2]PSC rw		CC[2]S rw		IC[1]F rw				IC[1]PSC rw		CC[1]S rw

Toggle fields

CC[1]S

Bits 0-1: Capture/Compare 1 selection.

Allowed values:
0: Output: CCx channel is configured as output
1: TI1: CCx channel is configured as input, ICx is mapped on TI1
2: TI2: CCx channel is configured as input, ICx is mapped on TI2
3: TRC: CCx channel is configured as input, ICx is mapped on TRC

IC[1]PSC

Bits 2-3: Input capture 1 prescaler.

Allowed values: 0x0-0x3

IC[1]F

Bits 4-7: Input capture 1 filter.

Allowed values:
0: NoFilter: No filter, sampling is done at fDTS
1: FCK_INT_N2: fSAMPLING=fCK_INT, N=2
2: FCK_INT_N4: fSAMPLING=fCK_INT, N=4
3: FCK_INT_N8: fSAMPLING=fCK_INT, N=8
4: FDTS_Div2_N6: fSAMPLING=fDTS/2, N=6
5: FDTS_Div2_N8: fSAMPLING=fDTS/2, N=8
6: FDTS_Div4_N6: fSAMPLING=fDTS/4, N=6
7: FDTS_Div4_N8: fSAMPLING=fDTS/4, N=8
8: FDTS_Div8_N6: fSAMPLING=fDTS/8, N=6
9: FDTS_Div8_N8: fSAMPLING=fDTS/8, N=8
10: FDTS_Div16_N5: fSAMPLING=fDTS/16, N=5
11: FDTS_Div16_N6: fSAMPLING=fDTS/16, N=6
12: FDTS_Div16_N8: fSAMPLING=fDTS/16, N=8
13: FDTS_Div32_N5: fSAMPLING=fDTS/32, N=5
14: FDTS_Div32_N6: fSAMPLING=fDTS/32, N=6
15: FDTS_Div32_N8: fSAMPLING=fDTS/32, N=8

CC[2]S

Bits 8-9: Capture/Compare 2 selection.

Allowed values:
0: Output: CCx channel is configured as output
1: TI1: CCx channel is configured as input, ICx is mapped on TI1
2: TI2: CCx channel is configured as input, ICx is mapped on TI2
3: TRC: CCx channel is configured as input, ICx is mapped on TRC

IC[2]PSC

Bits 10-11: Input capture 2 prescaler.

Allowed values: 0x0-0x3

IC[2]F

Bits 12-15: Input capture 2 filter.

Allowed values:
0: NoFilter: No filter, sampling is done at fDTS
1: FCK_INT_N2: fSAMPLING=fCK_INT, N=2
2: FCK_INT_N4: fSAMPLING=fCK_INT, N=4
3: FCK_INT_N8: fSAMPLING=fCK_INT, N=8
4: FDTS_Div2_N6: fSAMPLING=fDTS/2, N=6
5: FDTS_Div2_N8: fSAMPLING=fDTS/2, N=8
6: FDTS_Div4_N6: fSAMPLING=fDTS/4, N=6
7: FDTS_Div4_N8: fSAMPLING=fDTS/4, N=8
8: FDTS_Div8_N6: fSAMPLING=fDTS/8, N=6
9: FDTS_Div8_N8: fSAMPLING=fDTS/8, N=8
10: FDTS_Div16_N5: fSAMPLING=fDTS/16, N=5
11: FDTS_Div16_N6: fSAMPLING=fDTS/16, N=6
12: FDTS_Div16_N8: fSAMPLING=fDTS/16, N=8
13: FDTS_Div32_N5: fSAMPLING=fDTS/32, N=5
14: FDTS_Div32_N6: fSAMPLING=fDTS/32, N=6
15: FDTS_Div32_N8: fSAMPLING=fDTS/32, N=8

CCMR1_Output

capture/compare mode register (output mode)

Offset: 0x18, size: 32, reset: 0x00000000, access: read-write

6/8 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
	OC[2]M rw			OC[2]PE rw	OC[2]FE rw	CC[2]S rw			OC[1]M rw			OC[1]PE rw	OC[1]FE rw	CC[1]S rw

Toggle fields

CC[1]S

Bits 0-1: Capture/Compare 1 selection.

Allowed values:
0: Output: CCx channel is configured as output

OC[1]FE

Bit 2: Output compare 1 fast enable.

OC[1]PE

Bit 3: Output compare 1 preload enable.

Allowed values:
0: Disabled: Preload register on CCRx disabled. New values written to CCRx are taken into account immediately
1: Enabled: Preload register on CCRx enabled. Preload value is loaded into active register on each update event

OC[1]M

Bits 4-6: Output compare 1 mode.

Allowed values:
0: Frozen: The comparison between the output compare register TIMx_CCRy and the counter TIMx_CNT has no effect on the outputs
1: ActiveOnMatch: Set channel to active level on match. OCyREF signal is forced high when the counter matches the capture/compare register
2: InactiveOnMatch: Set channel to inactive level on match. OCyREF signal is forced low when the counter matches the capture/compare register
3: Toggle: OCyREF toggles when TIMx_CNT=TIMx_CCRy
4: ForceInactive: OCyREF is forced low
5: ForceActive: OCyREF is forced high
6: PwmMode1: In upcounting, channel is active as long as TIMx_CNT<TIMx_CCRy else inactive. In downcounting, channel is inactive as long as TIMx_CNT>TIMx_CCRy else active
7: PwmMode2: Inversely to PwmMode1

CC[2]S

Bits 8-9: Capture/Compare 2 selection.

Allowed values:
0: Output: CCx channel is configured as output

OC[2]FE

Bit 10: Output compare 2 fast enable.

OC[2]PE

Bit 11: Output compare 2 preload enable.

Allowed values:
0: Disabled: Preload register on CCRx disabled. New values written to CCRx are taken into account immediately
1: Enabled: Preload register on CCRx enabled. Preload value is loaded into active register on each update event

OC[2]M

Bits 12-14: Output compare 2 mode.

Allowed values:
0: Frozen: The comparison between the output compare register TIMx_CCRy and the counter TIMx_CNT has no effect on the outputs
1: ActiveOnMatch: Set channel to active level on match. OCyREF signal is forced high when the counter matches the capture/compare register
2: InactiveOnMatch: Set channel to inactive level on match. OCyREF signal is forced low when the counter matches the capture/compare register
3: Toggle: OCyREF toggles when TIMx_CNT=TIMx_CCRy
4: ForceInactive: OCyREF is forced low
5: ForceActive: OCyREF is forced high
6: PwmMode1: In upcounting, channel is active as long as TIMx_CNT<TIMx_CCRy else inactive. In downcounting, channel is inactive as long as TIMx_CNT>TIMx_CCRy else active
7: PwmMode2: Inversely to PwmMode1

CCER

capture/compare enable register

Offset: 0x20, size: 32, reset: 0x00000000, access: read-write

6/6 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
								CC[2]NP rw		CC[2]P rw	CC[2]E rw	CC[1]NP rw		CC[1]P rw	CC[1]E rw

Toggle fields

CC[1]E

Bit 0: Capture/Compare 1 output enable.

Allowed values:
0: Disabled: Capture disabled
1: Enabled: Capture enabled

CC[1]P

Bit 1: Capture/Compare 1 output Polarity.

Allowed values:
0: RisingEdge: Noninverted/rising edge
1: FallingEdge: Inverted/falling edge

CC[1]NP

Bit 3: Capture/Compare 1 output Polarity.

Allowed values:
0: Negative: Negative polarity
1: Positive: Positive polarity

CC[2]E

Bit 4: Capture/Compare 2 output enable.

Allowed values:
0: Disabled: Capture disabled
1: Enabled: Capture enabled

CC[2]P

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
												TI1_RMP rw		ETR_RMP rw

Toggle fields

ETR_RMP

Bits 0-1: Timer22 ETR remap.

Allowed values:
0: GPIO: TIM2x ETR input connected to GPIO
1: COMP2_OUT: TIM2x ETR input connected to COMP2_OUT
2: COMP1_OUT: TIM2x ETR input connected to COMP1_OUT
3: LSE: TIM2x ETR input connected to LSE clock

TI1_RMP

Bits 2-3: Timer22 TI1.

Allowed values:
0: GPIO: TIM2x TI1 input connected to GPIO
1: COMP2_OUT: TIM2x TI1 input connected to COMP2_OUT
2: COMP1_OUT: TIM2x TI1 input connected to COMP1_OUT

USART2

0x40004400: Universal synchronous asynchronous receiver transmitter

104/104 fields covered.

Toggle register map

Offset	Name	31	28	27	26	25	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
0x0	CR1		M1	EOBIE	RTOIE	DEAT				DEDT					OVER8	CMIE	MME	M0	WAKE	PCE	PS	PEIE	TXEIE	TCIE	RXNEIE	IDLEIE	TE	RE	UESM	UE
0x4	CR2	ADD					RTOEN	ABRMOD		ABREN	MSBFIRST	DATAINV	TXINV	RXINV	SWAP	LINEN	STOP		CLKEN	CPOL	CPHA	LBCL		LBDIE	LBDL	ADDM7
0x8	CR3							WUFIE	WUS		SCARCNT				DEP	DEM	DDRE	OVRDIS	ONEBIT	CTSIE	CTSE	RTSE	DMAT	DMAR	SCEN	NACK	HDSEL	IRLP	IREN	EIE
0xc	BRR														BRR
0x10	GTPR														GT								PSC
0x14	RTOR	BLEN					RTO								RTO
0x18	RQR																									TXFRQ	RXFRQ	MMRQ	SBKRQ	ABRRQ
0x1c	ISR							REACK	TEACK	WUF	RWU	SBKF	CMF	BUSY	ABRF	ABRE		EOBF	RTOF	CTS	CTSIF	LBDF	TXE	TC	RXNE	IDLE	ORE	NF	FE	PE
0x20	ICR									WUCF			CMCF					EOBCF	RTOCF		CTSCF	LBDCF		TCCF		IDLECF	ORECF	NCF	FECF	PECF
0x24	RDR																					RDR
0x28	TDR																					TDR

Toggle registers

CR1

Control register 1

Offset: 0x0, size: 32, reset: 0x00000000, access: read-write

21/21 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
			M1 rw	EOBIE rw	RTOIE rw	DEAT rw					DEDT rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
OVER8 rw	CMIE rw	MME rw	M0 rw	WAKE rw	PCE rw	PS rw	PEIE rw	TXEIE rw	TCIE rw	RXNEIE rw	IDLEIE rw	TE rw	RE rw	UESM rw	UE rw

Toggle fields

UE

Bit 0: USART enable.

Allowed values:
0: Disabled: UART is disabled
1: Enabled: UART is enabled

UESM

Bit 1: USART enable in Stop mode.

Allowed values:
0: Disabled: USART not able to wake up the MCU from Stop mode
1: Enabled: USART able to wake up the MCU from Stop mode

RE

Bit 2: Receiver enable.

Allowed values:
0: Disabled: Receiver is disabled
1: Enabled: Receiver is enabled

TE

Bit 3: Transmitter enable.

Allowed values:
0: Disabled: Transmitter is disabled
1: Enabled: Transmitter is enabled

IDLEIE

Bit 4: IDLE interrupt enable.

Allowed values:
0: Disabled: Interrupt is disabled
1: Enabled: Interrupt is generated whenever IDLE=1 in the ISR register

RXNEIE

Bit 5: RXNE interrupt enable.

Allowed values:
0: Disabled: Interrupt is disabled
1: Enabled: Interrupt is generated whenever ORE=1 or RXNE=1 in the ISR register

TCIE

Bit 6: Transmission complete interrupt enable.

Allowed values:
0: Disabled: Interrupt is disabled
1: Enabled: Interrupt is generated whenever TC=1 in the ISR register

TXEIE

Bit 7: interrupt enable.

Allowed values:
0: Disabled: Interrupt is disabled
1: Enabled: Interrupt is generated whenever TXE=1 in the ISR register

PEIE

Bit 8: PE interrupt enable.

Allowed values:
0: Disabled: Interrupt is disabled
1: Enabled: Interrupt is generated whenever PE=1 in the ISR register

PS

Bit 9: Parity selection.

Allowed values:
0: Even: Even parity
1: Odd: Odd parity

PCE

Bit 10: Parity control enable.

Allowed values:
0: Disabled: Parity control disabled
1: Enabled: Parity control enabled

WAKE

Bit 11: Receiver wakeup method.

Allowed values:
0: Idle: Idle line
1: Address: Address mask

M0

Bit 12: Word length.

Allowed values:
0: Bit8: 1 start bit, 8 data bits, n stop bits
1: Bit9: 1 start bit, 9 data bits, n stop bits

MME

Bit 13: Mute mode enable.

Allowed values:
0: Disabled: Receiver in active mode permanently
1: Enabled: Receiver can switch between mute mode and active mode

CMIE

Bit 14: Character match interrupt enable.

Allowed values:
0: Disabled: Interrupt is disabled
1: Enabled: Interrupt is generated when the CMF bit is set in the ISR register

OVER8

Bit 15: Oversampling mode.

Allowed values:
0: Oversampling16: Oversampling by 16
1: Oversampling8: Oversampling by 8

DEDT

Bits 16-20: Driver Enable de-assertion time.

Allowed values: 0x0-0x1f

DEAT

Bits 21-25: Driver Enable assertion time.

Allowed values: 0x0-0x1f

RTOIE

Bit 26: Receiver timeout interrupt enable.

Allowed values:
0: Disabled: Interrupt is inhibited
1: Enabled: An USART interrupt is generated when the RTOF bit is set in the ISR register

EOBIE

Bit 27: End of Block interrupt enable.

Allowed values:
0: Disabled: Interrupt is inhibited
1: Enabled: A USART interrupt is generated when the EOBF flag is set in the ISR register

M1

Bit 28: Word length.

Allowed values:
0: M0: Use M0 to set the data bits
1: Bit7: 1 start bit, 7 data bits, n stop bits

CR2

Control register 2

Offset: 0x4, size: 32, reset: 0x00000000, access: read-write

18/18 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
ADD rw								RTOEN rw	ABRMOD rw		ABREN rw	MSBFIRST rw	DATAINV rw	TXINV rw	RXINV rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
SWAP rw	LINEN rw	STOP rw		CLKEN rw	CPOL rw	CPHA rw	LBCL rw		LBDIE rw	LBDL rw	ADDM7 rw

Toggle fields

ADDM7

Bit 4: 7-bit Address Detection/4-bit Address Detection.

Allowed values:
0: Bit4: 4-bit address detection
1: Bit7: 7-bit address detection

LBDL

Bit 5: LIN break detection length.

Allowed values:
0: Bit10: 10-bit break detection
1: Bit11: 11-bit break detection

LBDIE

Bit 6: LIN break detection interrupt enable.

Allowed values:
0: Disabled: Interrupt is inhibited
1: Enabled: An interrupt is generated whenever LBDF=1 in the ISR register

LBCL

Bit 8: Last bit clock pulse.

Allowed values:
0: NotOutput: The clock pulse of the last data bit is not output to the CK pin
1: Output: The clock pulse of the last data bit is output to the CK pin

CPHA

Bit 9: Clock phase.

Allowed values:
0: First: The first clock transition is the first data capture edge
1: Second: The second clock transition is the first data capture edge

CPOL

Bit 10: Clock polarity.

Allowed values:
0: Low: Steady low value on CK pin outside transmission window
1: High: Steady high value on CK pin outside transmission window

CLKEN

Bit 11: Clock enable.

Allowed values:
0: Disabled: CK pin disabled
1: Enabled: CK pin enabled

STOP

Bits 12-13: STOP bits.

Allowed values:
0: Stop1: 1 stop bit
1: Stop0p5: 0.5 stop bit
2: Stop2: 2 stop bit
3: Stop1p5: 1.5 stop bit

LINEN

Bit 14: LIN mode enable.

Allowed values:
0: Disabled: LIN mode disabled
1: Enabled: LIN mode enabled

SWAP

Bit 15: Swap TX/RX pins.

Allowed values:
0: Standard: TX/RX pins are used as defined in standard pinout
1: Swapped: The TX and RX pins functions are swapped

RXINV

Bit 16: RX pin active level inversion.

Allowed values:
0: Standard: RX pin signal works using the standard logic levels
1: Inverted: RX pin signal values are inverted

TXINV

Bit 17: TX pin active level inversion.

Allowed values:
0: Standard: TX pin signal works using the standard logic levels
1: Inverted: TX pin signal values are inverted

DATAINV

Bit 18: Binary data inversion.

Allowed values:
0: Positive: Logical data from the data register are send/received in positive/direct logic
1: Negative: Logical data from the data register are send/received in negative/inverse logic

MSBFIRST

Bit 19: Most significant bit first.

Allowed values:
0: LSB: data is transmitted/received with data bit 0 first, following the start bit
1: MSB: data is transmitted/received with MSB (bit 7/8/9) first, following the start bit

ABREN

Bit 20: Auto baud rate enable.

Allowed values:
0: Disabled: Auto baud rate detection is disabled
1: Enabled: Auto baud rate detection is enabled

ABRMOD

Bits 21-22: Auto baud rate mode.

Allowed values:
0: Start: Measurement of the start bit is used to detect the baud rate
1: Edge: Falling edge to falling edge measurement
2: Frame7F: 0x7F frame detection
3: Frame55: 0x55 frame detection

RTOEN

Bit 23: Receiver timeout enable.

Allowed values:
0: Disabled: Receiver timeout feature disabled
1: Enabled: Receiver timeout feature enabled

ADD

Bits 24-31: Address of the USART node.

Allowed values: 0x0-0xff

CR3

Control register 3

Offset: 0x8, size: 32, reset: 0x00000000, access: read-write

19/19 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
									WUFIE rw	WUS rw		SCARCNT rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
DEP rw	DEM rw	DDRE rw	OVRDIS rw	ONEBIT rw	CTSIE rw	CTSE rw	RTSE rw	DMAT rw	DMAR rw	SCEN rw	NACK rw	HDSEL rw	IRLP rw	IREN rw	EIE rw

Toggle fields

EIE

Bit 0: Error interrupt enable.

Allowed values:
0: Disabled: Interrupt is inhibited
1: Enabled: An interrupt is generated when FE=1 or ORE=1 or NF=1 in the ISR register

IREN

Bit 1: Ir mode enable.

Allowed values:
0: Disabled: IrDA disabled
1: Enabled: IrDA enabled

IRLP

Bit 2: Ir low-power.

Allowed values:
0: Normal: Normal mode
1: LowPower: Low-power mode

HDSEL

Bit 3: Half-duplex selection.

Allowed values:
0: NotSelected: Half duplex mode is not selected
1: Selected: Half duplex mode is selected

NACK

Bit 4: Smartcard NACK enable.

Allowed values:
0: Disabled: NACK transmission in case of parity error is disabled
1: Enabled: NACK transmission during parity error is enabled

SCEN

Bit 5: Smartcard mode enable.

Allowed values:
0: Disabled: Smartcard Mode disabled
1: Enabled: Smartcard Mode enabled

DMAR

Bit 6: DMA enable receiver.

Allowed values:
0: Disabled: DMA mode is disabled for reception
1: Enabled: DMA mode is enabled for reception

DMAT

Bit 7: DMA enable transmitter.

Allowed values:
0: Disabled: DMA mode is disabled for transmission
1: Enabled: DMA mode is enabled for transmission

RTSE

Bit 8: RTS enable.

Allowed values:
0: Disabled: RTS hardware flow control disabled
1: Enabled: RTS output enabled, data is only requested when there is space in the receive buffer

CTSE

Bit 9: CTS enable.

Allowed values:
0: Disabled: CTS hardware flow control disabled
1: Enabled: CTS mode enabled, data is only transmitted when the CTS input is asserted

CTSIE

Bit 10: CTS interrupt enable.

Allowed values:
0: Disabled: Interrupt is inhibited
1: Enabled: An interrupt is generated whenever CTSIF=1 in the ISR register

ONEBIT

Bit 11: One sample bit method enable.

Allowed values:
0: Sample3: Three sample bit method
1: Sample1: One sample bit method

OVRDIS

Bit 12: Overrun Disable.

Allowed values:
0: Enabled: Overrun Error Flag, ORE, is set when received data is not read before receiving new data
1: Disabled: Overrun functionality is disabled. If new data is received while the RXNE flag is still set the ORE flag is not set and the new received data overwrites the previous content of the RDR register

DDRE

Bit 13: DMA Disable on Reception Error.

Allowed values:
0: NotDisabled: DMA is not disabled in case of reception error
1: Disabled: DMA is disabled following a reception error

DEM

Bit 14: Driver enable mode.

Allowed values:
0: Disabled: DE function is disabled
1: Enabled: The DE signal is output on the RTS pin

DEP

Bit 15: Driver enable polarity selection.

Allowed values:
0: High: DE signal is active high
1: Low: DE signal is active low

SCARCNT

Bits 17-19: Smartcard auto-retry count.

Allowed values: 0x0-0x7

WUS

Bits 20-21: Wakeup from Stop mode interrupt flag selection.

Allowed values:
0: Address: WUF active on address match
2: Start: WuF active on Start bit detection
3: RXNE: WUF active on RXNE

WUFIE

Bit 22: Wakeup from Stop mode interrupt enable.

Allowed values:
0: Disabled: Interrupt is inhibited
1: Enabled: An USART interrupt is generated whenever WUF=1 in the ISR register

BRR

Baud rate register

Offset: 0xc, size: 32, reset: 0x00000000, access: read-write

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
BRR rw

Toggle fields

BRR

Bits 0-15: DIV_Mantissa.

Allowed values: 0x0-0xffff

GTPR

Guard time and prescaler register

Offset: 0x10, size: 32, reset: 0x00000000, access: read-write

2/2 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
GT rw								PSC rw

Toggle fields

PSC

Bits 0-7: Prescaler value.

Allowed values: 0x0-0xff

GT

Bits 8-15: Guard time value.

Allowed values: 0x0-0xff

RTOR

Receiver timeout register

Offset: 0x14, size: 32, reset: 0x00000000, access: read-write

2/2 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
BLEN rw								RTO rw
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
RTO rw

Toggle fields

RTO

Bits 0-23: Receiver timeout value.

Allowed values: 0x0-0xffffff

BLEN

Bits 24-31: Block Length.

Allowed values: 0x0-0xff

RQR

Request register

Offset: 0x18, size: 32, reset: 0x00000000, access: write-only

5/5 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
											TXFRQ w	RXFRQ w	MMRQ w	SBKRQ w	ABRRQ w

Toggle fields

ABRRQ

Bit 0: Auto baud rate request.

Allowed values:
1: Request: resets the ABRF flag in the USART_ISR and request an automatic baud rate measurement on the next received data frame

SBKRQ

Bit 1: Send break request.

Allowed values:
1: Break: sets the SBKF flag and request to send a BREAK on the line, as soon as the transmit machine is available

MMRQ

Bit 2: Mute mode request.

Allowed values:
1: Mute: Puts the USART in mute mode and sets the RWU flag

RXFRQ

Bit 3: Receive data flush request.

Allowed values:
1: Discard: clears the RXNE flag. This allows to discard the received data without reading it, and avoid an overrun condition

TXFRQ

Bit 4: Transmit data flush request.

Allowed values:
1: Discard: Set the TXE flags. This allows to discard the transmit data

ISR

Interrupt & status register

Offset: 0x1c, size: 32, reset: 0x000000C0, access: read-only

22/22 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
									REACK r	TEACK r	WUF r	RWU r	SBKF r	CMF r	BUSY r
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
ABRF r	ABRE r		EOBF r	RTOF r	CTS r	CTSIF r	LBDF r	TXE r	TC r	RXNE r	IDLE r	ORE r	NF r	FE r	PE r

Toggle fields

PE

Bit 0: PE.

FE

Bit 1: FE.

NF

Bit 2: NF.

ORE

Bit 3: ORE.

IDLE

Bit 4: IDLE.

RXNE

Bit 5: RXNE.

TC

Bit 6: TC.

TXE

Bit 7: TXE.

LBDF

Bit 8: LBDF.

CTSIF

Bit 9: CTSIF.

CTS

Bit 10: CTS.

RTOF

Bit 11: RTOF.

EOBF

Bit 12: EOBF.

ABRE

Bit 14: ABRE.

ABRF

Bit 15: ABRF.

BUSY

Bit 16: BUSY.

CMF

Bit 17: CMF.

SBKF

Bit 18: SBKF.

RWU

Bit 19: RWU.

WUF

Bit 20: WUF.

TEACK

Bit 21: TEACK.

REACK

Bit 22: REACK.

ICR

Interrupt flag clear register

Offset: 0x20, size: 32, reset: 0x00000000, access: write-only

12/12 fields covered.

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16
											WUCF w			CMCF w
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
			EOBCF w	RTOCF w		CTSCF w	LBDCF w		TCCF w		IDLECF w	ORECF w	NCF w	FECF w	PECF w

Toggle fields

PECF

Bit 0: Parity error clear flag.

Allowed values:
1: Clear: Clears the PE flag in the ISR register

FECF

Bit 1: Framing error clear flag.

Allowed values:
1: Clear: Clears the FE flag in the ISR register

NCF

Bit 2: Noise detected clear flag.

Allowed values:
1: Clear: Clears the NF flag in the ISR register

ORECF

Bit 3: Overrun error clear flag.

Allowed values:
1: Clear: Clears the ORE flag in the ISR register

IDLECF

Bit 4: Idle line detected clear flag.

Allowed values:
1: Clear: Clears the IDLE flag in the ISR register

TCCF

Bit 6: Transmission complete clear flag.

Allowed values:
1: Clear: Clears the TC flag in the ISR register

LBDCF

Bit 8: LIN break detection clear flag.

Allowed values:
1: Clear: Clears the LBDF flag in the ISR register

CTSCF

Bit 9: CTS clear flag.

Allowed values:
1: Clear: Clears the CTSIF flag in the ISR register

RTOCF

Bit 11: Receiver timeout clear flag.

Allowed values:
1: Clear: Clears the RTOF flag in the ISR register

EOBCF

Bit 12: End of block clear flag.

Allowed values:
1: Clear: Clears the EOBF flag in the ISR register

CMCF

Bit 17: Character match clear flag.

Allowed values:
1: Clear: Clears the CMF flag in the ISR register

WUCF

Bit 20: Wakeup from Stop mode clear flag.

Allowed values:
1: Clear: Clears the WUF flag in the ISR register

RDR

Receive data register

Offset: 0x24, size: 32, reset: 0x00000000, access: read-only

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
							RDR r

Toggle fields

RDR

Bits 0-8: Receive data value.

Allowed values: 0x0-0x1ff

TDR

Transmit data register

Offset: 0x28, size: 32, reset: 0x00000000, access: read-write

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
							TDR rw

Toggle fields

TDR

Bits 0-8: Transmit data value.

Allowed values: 0x0-0x1ff

WWDG

0x40002c00: System window watchdog

6/6 fields covered.

Toggle register map

Offset	Name	9	8	7	6	0
0x0	CR			WDGA	T
0x4	CFR	EWI	WDGTB		W
0x8	SR					EWIF

Toggle registers

CR

Control register

Offset: 0x0, size: 32, reset: 0x0000007F, access: read-write

2/2 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
								WDGA rw	T rw

Toggle fields

T

Bits 0-6: 7-bit counter (MSB to LSB).

Allowed values: 0x0-0x7f

WDGA

Bit 7: Activation bit.

Allowed values:
0: Disabled: Watchdog disabled
1: Enabled: Watchdog enabled

CFR

Configuration register

Offset: 0x4, size: 32, reset: 0x0000007F, access: read-write

3/3 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
						EWI rw	WDGTB rw		W rw

Toggle fields

W

Bits 0-6: 7-bit window value.

Allowed values: 0x0-0x7f

WDGTB

Bits 7-8: Timer base.

Allowed values:
0: Div1: Counter clock (PCLK1 div 4096) div 1
1: Div2: Counter clock (PCLK1 div 4096) div 2
2: Div4: Counter clock (PCLK1 div 4096) div 4
3: Div8: Counter clock (PCLK1 div 4096) div 8

EWI

Bit 9: Early wakeup interrupt.

Allowed values:
1: Enable: interrupt occurs whenever the counter reaches the value 0x40

SR

Status register

Offset: 0x8, size: 32, reset: 0x00000000, access: read-write

1/1 fields covered.

15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
															EWIF rw

Toggle fields

EWIF

Bit 0: Early wakeup interrupt flag.

Allowed values:
0: Finished: The EWI Interrupt Service Routine has been serviced
1: Pending: The EWI Interrupt Service Routine has been triggered