REGION[n].CONFIG

nRF54LM20A | nRF54LM20B Datasheet

Address offset: 0x554 + (n × 0x8)

Region configuration

The register fields READ, WRITE and EXECUTE can can be written to 0, even when the LOCK field is set to Enabled.

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 G G G G G G G F E D C B A
Reset 0x00000000 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 0 0 0 0 0
ID R/W Field Value ID Value Description
A

RW

READ

Read access

NotAllowed

0

Read access to override region [n] is not allowed

Allowed

1

Read access to override region [n] is allowed

B

RW

WRITE

Write access

NotAllowed

0

Write access to override region [n] is not allowed

Allowed

1

Write access to override region [n] is allowed

C

RW

EXECUTE

Execute access

NotAllowed

0

Execute access to override region [n] is not allowed

Allowed

1

Execute access to override region [n] is allowed

D

RW

SECURE

Secure access

NonSecure

0

Both Secure and non-Secure access to override region [n] is allowed

Secure

1

Only secure access to override region [n] is allowed

E

RW

WRITEONCE

Write-once

Disabled

0

Write-once disabled

Enabled

1

Write-once enabled

F

RW
W1S

LOCK

Enable lock

Disabled

0

Lock disabled for region [n]

Enabled

1

Lock enabled for region [n]

G

RW

SIZE

Size in KBytes of region [n]