Fields In AC_CACR (0xE000EF90, 0x000C)

Field	Offset	Width	STM32F0x8	STM32F103	STM32F107	STM32F217	STM32F303	STM32F3x4	STM32F469	STM32F7x9
SIWT	0	1	✘	✘	✘	✘	✘	✘	✘	✔
ECCEN	1	1	✘	✘	✘	✘	✘	✘	✘	✔
FORCEWT	2	1	✘	✘	✘	✘	✘	✘	✘	✔