MpuP_RegionAttrs Struct Reference

Detailed Description

Attribute's to apply for a MPU region.

Note

Refer to ARMv7-R or ARMv7-M architecture manual for more details

C, B, S, TEX[0:2] bits together control if a region should be fully cached or non-cached or marked as device memory

Data Fields
uint8_t	isEnable
uint8_t	isCacheable
uint8_t	isBufferable
uint8_t	isSharable
uint8_t	isExecuteNever
uint8_t	tex
uint8_t	accessPerm
uint8_t	subregionDisableMask

Field Documentation

isEnable

uint8_t MpuP_RegionAttrs::isEnable

1: enable this region, 0: disable this region

isCacheable

uint8_t MpuP_RegionAttrs::isCacheable

1: set C bit, 0: clear C bit

isBufferable

uint8_t MpuP_RegionAttrs::isBufferable

1: set B bit, 0: clear B bit

isSharable

uint8_t MpuP_RegionAttrs::isSharable

1: set S bit, 0: clear S bit

isExecuteNever

uint8_t MpuP_RegionAttrs::isExecuteNever

1: set XN bit, 0: clear XN bit

tex

uint8_t MpuP_RegionAttrs::tex

set TEX[0:2] bits

accessPerm

uint8_t MpuP_RegionAttrs::accessPerm

set AP[0:2] bits, see MpuP_AccessPerm

subregionDisableMask

uint8_t MpuP_RegionAttrs::subregionDisableMask

subregion disable mask, bitN = 1 means disable that subregion