DA9021 datasheet(76/142 Pages) DIALOG

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DA9021/22

System PMIC with high efficiency USB power manager

Datasheet

Revision 2.5

17-Feb-2017

CFR0011-120-00 Rev 5

76 of 142

15.1 GPIO control

Table 59: GPIO0 to 1

address

Bit

Type

Label

Default

Description

R21

GPIO_0-1

1:0

R/W

GPIO0_PIN

PIN assigned to

00: ADCIN4

01: GPI

10: GPO (Open drain)

11: GPO (Push-pull)

R/W

GPIO0_TYPE

0: GPI: active low

GPO: supplied from VDD_IO/internal

pull-up in open-drain mode

1: GPI: active high

GPO: supplied from VDD_IO/external

pull-up in open-drain mode

R/W

GPIO0_ MODE

0: GPI/ADCIN4: debouncing off

GPO: Sets output to low level

1: GPI/ADCIN4: debouncing on and

generate wakeup

GPO: Sets output to high level

5:4

R/W

GPIO1_PIN

PIN assigned to

00: ADCIN5/1.2 V comparator

01: GPI (LDO4 hardware control)

10: GPO (open drain)

11: GPO (push-pull)

R/W

GPIO1_TYPE

0: GPI: active low

GPO: supplied from VDD_IO/internal

pull-up in open-drain mode

1: GPI: active high

GPO: supplied from VDD_IO/external

pull-up in open-drain mode

R/W

GPIO1_ MODE

0: GPI/ADCIN5: debouncing off, Set

LDO4_EN when GPI transfers to active

state (reset when GPI gets to passive

state)

GPO: Sets output to low level

1: GPI: debouncing on, no LDO4_EN

control

ADCIN5: debouncing on and generate

wakeup

GPO: Sets output to high level

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