Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32n6/STM32N645/DCMIPP/DCMIPP_P1ST1SR#0x0
DCMIPP Pipe1 statistics 1 status register
Accumulation result, divided by 256.
https://github.com/modm-io/cmsis-svd-stm32