Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32u5/STM32U535/GTZC1_TZSC/TZSC_MPCWM2BR#0x0
TZSC memory 2 sub-region B watermark register
Start of sub-region A
Length of sub-region A
https://github.com/modm-io/cmsis-svd-stm32