NRF9160-SICA-R7 datasheet(77/400 Pages) NORDIC

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Power and clock management

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

A A

Reset 0x00000001

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 1

R/W

Field

Value ID

Value

Description

SRC

Clock source

RFU

Reserved for future use

LFRC

32.768 kHz RC oscillator

LFXO

32.768 kHz crystal oscillator

5.3.2.1.22 LFCLKSRC

Address offset: 0x518

Clock source for the LFCLK. LFCLKSTART task starts starts a clock source selected with this 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

A A

Reset 0x00000001

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 1

R/W

Field

Value ID

Value

Description

SRC

Clock source

RFU

Reserved for future use (equals selecting LFRC)

LFRC

32.768 kHz RC oscillator

LFXO

32.768 kHz crystal oscillator

5.3.3 REGULATORS — Voltage regulators control

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

regulators.

5.3.3.1 Registers

Base address Peripheral

Instance

Secure mapping

DMA security

Description

Configuration

0x50004000

0x40004000

REGULATORS

REGULATORS :

Regulator configuration

Table 25: Instances

Offset

Security Description

SYSTEMOFF

0x500

System OFF register

DCDCEN

0x578

Enable DC/DC mode of the main voltage regulator.

Table 26: Register overview

5.3.3.1.1 SYSTEMOFF

Address offset: 0x500

System OFF register

4418_1315 v2.0

NRF9160-SICA-R7 Datasheet(PDF) 77 Page - Nordic Semiconductor

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