Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/STMicroelectronics/STM32F7x8/PF/CLIDR#0x0
Cache Level ID register
CL1
CL2
CL3
CL4
CL5
CL6
CL7
LoUIS
LoC
LoU
https://github.com/cmsis-svd/cmsis-svd-data