Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32f3/STM32F301/SYSCFG_COMP_OPAMP/SYSCFG_CFGR2#0x0
configuration register 2
Cortex-M0 LOCKUP bit enable bit
SRAM parity lock bit
PVD lock enable bit
Bypass address bit 29 in parity calculation
SRAM parity flag
https://github.com/modm-io/cmsis-svd-stm32