RAMREGION[n].PERM

nRF5340 Product Specification

Address offset: 0x700 + (n × 0x4)

Access permissions for RAM region n

Bit number 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
ID E D C B A
Reset 0x00000017 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 1
ID R/W Field Value ID Value Description
A

RW

EXECUTE

Configure instruction fetch permissions from RAM region n

Enable

1

Allow instruction fetches from RAM region n

Disable

0

Block instruction fetches from RAM region n

B

RW

WRITE

Configure write permission for RAM region n

Enable

1

Allow write operation to RAM region n

Disable

0

Block write operation to RAM region n

C

RW

READ

Configure read permissions for RAM region n

Enable

1

Allow read operation from RAM region n

Disable

0

Block read operation from RAM region n

D

RW

SECATTR

Security attribute for RAM region n

Non_Secure

0

RAM region n security attribute is non-secure

Secure

1

RAM region n security attribute is secure

E

RW

LOCK

Unlocked

0

This register can be updated

Locked

1

The content of this register can't be changed until the next reset