### MPU_CTRL

Bit Field | Read/Write | Field Name | Description
--- | --- | --- | ---
2 | RW | PRIVDEFENA | Privileged default enable
1 | RW | HFNMIENA | Hard fault and NMI enable
0 | RW | ENABLE | Enable the MPU

Bit Field | Field Name | Value Symbol | Value Description | Hex Value
--- | --- | --- | --- | ---
2 | PRIVDEFENA | DEFAULT_MEM_MAP_DISABLED | Disables use of the default memory map. Any memory access to a location that is not covered by any enabled region causes a fault | 0x0*
|  | DEFAULT_MEM_MAP_ENABLED | Enables use of the default memory map as a background region for privileged software accesses | 0x1
1 | HFNMIENA | MPU_DISABLED_FOR_HF_NMI | MPU is disabled during HardFault and NMI handlers, regardless of the value of the ENABLE bit | 0x0*
|  | MPU_ENABLED_FOR_HF_NMI | The MPU is enabled during HardFault and NMI handlers | 0x1
0 | ENABLE | MPU_DISABLED | MPU is disabled | 0x0*
|  | MPU_ENABLED | MPU is enabled | 0x1