The REGULATORS module provides an interface to certain configuration settings of on-chip voltage regulators.

Registers

Instances

Instance Base address TrustZone Split access Description
Map Att DMA

REGULATORS : S
REGULATORS : NS

0x50004000
0x40004000

 US NS NA No

Regulator configuration

Register overview

Register Offset TZ Description
SYSTEMOFF 0x500

System OFF register
EXTPOFCON 0x514

External power failure warning configuration
DCDCEN 0x578

Enable a step-down DC/DC voltage regulator.

SYSTEMOFF

Address offset: 0x500

System OFF register

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 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

W

SYSTEMOFF

Enable System OFF mode

Enable

1

Enable System OFF mode

EXTPOFCON

Address offset: 0x514

External power failure warning configuration

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 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

POF

Enable or disable external power failure warning

Disabled

0

Disable

Enabled

1

Enable

DCDCEN

Address offset: 0x578

Enable a step-down DC/DC voltage regulator.

Note: DCDCEN must be set to 1 (enabled) before the LTE modem is started.
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 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

DCDCEN

Enable DC/DC buck regulator

Disabled

0

DC/DC buck regulator is disabled

Enabled

1

DC/DC buck regulator is enabled