Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Microchip Technology/ATSAME51J19A/MPU/CTRL#0x0
MPU Control Register
MPU Enable
Enable Hard Fault and NMI handlers
Enables privileged software access to default memory map
https://github.com/cmsis-svd/cmsis-svd-data