Fields In GPIOG_AFRL (0x48001800, 0x0020)

Field	Offset	Width	STM32F301	STM32F302	STM32F303	STM32F373	STM32F3x4
AFRL0	0	4	✘	✔	✔	✘	✘
AFRL1	4	4	✘	✔	✔	✘	✘
AFRL2	8	4	✘	✔	✔	✘	✘
AFRL3	12	4	✘	✔	✔	✘	✘
AFRL4	16	4	✘	✔	✔	✘	✘
AFRL5	20	4	✘	✔	✔	✘	✘
AFRL6	24	4	✘	✔	✔	✘	✘
AFRL7	28	4	✘	✔	✔	✘	✘