NRF9160-SICA-R7 datasheet(190/400 Pages) NORDIC

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Peripherals

0x000

PCLK16M

LFCLK

PRESC

COUNTER

X+1

First tick

START

>= ~15 µs

X+2

X+3

0 or more PCLK16M cycles before

Figure 63: Timing diagram - JITTER_START-

0x000

PCLK16M

LFCLK

PRESC

COUNTER

First tick

START

LFCLK startup time

X+1

X+2

Figure 64: Timing diagram - JITTER_START+

The following tables summarize jitter introduced for tasks and events. Any 32.768 kHz clock jitter will

come in addition to these numbers.

Task

Delay

CLEAR, START, STOP, TRIGOVRFLOW

+15 to 46 μs

Table 63: RTC jitter magnitudes on tasks

Operation/Function

Jitter

START to COUNTER increment

± 15 μs

COMPARE to COMPARE 12

± 62.5 ns

Table 64: RTC jitter magnitudes on events

6.11.9 Registers

Base address Peripheral

Instance

Secure mapping

DMA security

Description

Configuration

0x50014000

0x40014000

RTC

RTC0 : S

RTC0 : NS

Real time counter 0

0x50015000

0x40015000

RTC

RTC1 : S

RTC1 : NS

Real time counter 1

Table 65: Instances

12 Assumes RTC runs continuously between these events.

4418_1315 v2.0

190

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