Security Attribution Unit

Address

Register Name

Register Write

Register Read

Default

Description

0xE000EDD0

SAU_CTRL

(1) ALLNS

(1) ALLNS

0x0

All non-secure

(0) ENABLE

(0) ENABLE

0x0

Enable the SAU

0xE000EDD4

SAU_TYPE

-

(7:0) NBR_OF_REGION

0x4

Number of region implemented by the SAU

0xE000EDD8

SAU_RNR

(7:0) SEL_REGION

(7:0) SEL_REGION

0x0

Selects the region currently accessed by SAU_RBAR and SAU_RLAR

0xE000EDDC

SAU_RBAR

(31:5) BASE_ADDRESS

(31:5) BASE_ADDRESS

0x0

Base address

0xE000EDE0

SAU_RLAR

(31:5) LIMIT_ADDRESS

(31:5) LIMIT_ADDRESS

0x0

Limit address

0xE000EDE4

SAU_SFSR

-

(7) LSERR

0x0

Lazy state error flag

-

(6) SFARVALID

0x0

Secure fault address valid

-

(5) LSPERR

0x0

Lazy state preservation error flag

-

(4) INVTRAN

0x0

Invalid transition flag

-

(3) AUVIOL

0x0

Attribution unit violation flag

-

(2) INVER

0x0

Invalid exception return flag

-

(1) INVIS

0x0

Invalid integrity signature flag

-

(0) INVEP

0x0

Invalid entry point

0xE000EDE8

SAU_SFAR

-

(31:0) ADDRESS

0x0

Address