Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32n6/STM32N645/CACHEAXI/CACHEAXI_RMMONR#0x0
CACHEAXI read-miss monitor register
cache read-miss monitor counter
https://github.com/modm-io/cmsis-svd-stm32