Enables the MPU and, when the MPU is enabled, controls whether the default memory map is enabled as a background region for privileged accesses, and whether the MPU is enabled for HardFaults, NMIs, and exception handlers when FAULTMASK is set to 1
ENABLE | Enables the MPU |
HFNMIENA | Controls whether handlers executing with priority less than 0 access memory with the MPU enabled or disabled. This applies to HardFaults, NMIs, and exception handlers when FAULTMASK is set to 1 |
PRIVDEFENA | Controls whether the default memory map is enabled for privileged software |