Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/STMicroelectronics/STM32U599/GTZC2_TZSC/TZSC_CR#0x0
TZSC control register
lock the configuration of GTZC1_TZSC_SECCFGRx and GTZC1_TZSC_PRIVCFGRx registers until next reset
https://github.com/cmsis-svd/cmsis-svd-data