Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32h7/STM32H742/JPEG/CFR#0x0
JPEG clear flag register
Clear End of Conversion Flag Writing 1 clears the End of Conversion Flag of the JPEG Status Register.
Clear Header Parsing Done Flag Writing 1 clears the Header Parsing Done Flag of the JPEG Status Register.
https://github.com/modm-io/cmsis-svd-stm32