Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32n6/STM32N645/VENC/VENC_SWREG31#0x0
VENC encoder control register 13
H.264 checkpoint 7 -8 (all format mode)
https://github.com/modm-io/cmsis-svd-stm32