Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/STMicroelectronics/STM32L562/FLASH/SECWM1R2#0x0
Flash secure watermak1 register 2
PCROP1_PSTRT
PCROP1EN
HDP1_PEND
HDP1EN
https://github.com/cmsis-svd/cmsis-svd-data