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