Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32n6/STM32N645/BSEC/BSEC_HDPLSR#0x0
BSEC HDPL
current HDPL
81 (B_0x51): Level 1
111 (B_0x6F): Level 3
138 (B_0x8A): Level 2
180 (B_0xB4): Level 0
https://github.com/modm-io/cmsis-svd-stm32