DA9062 datasheet(40/101 Pages) RENESAS

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DA9062

PMIC for Applications Requiring up to 8.5 A

Datasheet

Revision 3.8

15-Feb-2022

CFR0011-120-00

40 of 99

Table 24: GPIO Functions

GPIO<X>_

Function

GPIO<X>_

MODE

GPIO<X>_

TYPE

GPIO<X>_

WKUP_MODE

GPIO<X>_

WEN

Alternate

function

No effect

GPI

0: Debounce off

1: Debounce on

0: Active low

1: Active high

0: Edge-sensitive

wakeup

1: Level-sensitive

wakeup

0: Wakeup

disabled

1: Wakeup enabled

GPO

Open-drain

0: Output low

1: Output high

No effect

GPO

Push-pull

0: Output low

1: Output high

No effect

8.3.1

GPI Functionality

When configured as a GPI, the polarity of the input can be selected with GPIO<x>_TYPE. A

debouncing filter can be applied on the input signals with a configurable debouncing time (register

DEBOUNCING). An event is generated at the active edge of the input. The active edge is determined

by the signal polarity configured in GPIO<x>_TYPE. The event can be further configured to generate

a wakeup via GPIO<x>_WKUP_MODE and GPIO<x>_WEN. An internal pull-down can be activated

for the inputs in GPIO<x>_PUPD.

A level sensitive wakeup event can also be configured for each GPI via GPIO<x>_WKUP_MODE

and GPIO<x>_WEN. The functionality of the level-sensitive wakeup is described in Table 29.

8.3.1.1

Regulator Control

GPIO1, GPIO2, and GPIO3 can be used for controlling DA9062 regulators. When configured as

GPIs, they can be used to enable regulators or select between their two output voltage settings.

As seen in Figure 18, the regulator control is branched after the GPIO<x>_TYPE register allowing

active edge delegation for the regulator control. Finally, the functionality for the GPI is selected with

the regulator controls BUCK<x>_GPI, LDO<x>_GPI, VBUCK<x>_GPI, and VLDO<x>_GPI.

One GPI can be used to control the same function on multiple regulators simultaneously. When a

regulator is controlled by a GPI, the same function (on/off or voltage selection) can no longer be

controlled by the power supply sequencer. The regulator still responds normally to register writes to

the control bit.

Enable/Disable Control

A GPI is used for enabling/disabling regulators when it is selected in one of the BUCK<x>_GPI or

LDO<x>_GPI controls. A passive to active transition sets the regulator enable bit (BUCK<x>_EN,

LDO<x>_EN), and an active to passive transition clears it.

Output Voltage Control

A GPI is used for the output voltage selection when it is selected in one of the VBUCK<x>_GPI or

VLDO<x>_GPI controls. A passive to active transition sets the voltage selection bit

(VBUCK<x>_SEL, VLDO<x>_SEL), and an active to passive edge clears it.

8.3.1.2

Sequencer WAIT_STEP

GPIO3 can be used for the WAIT_STEP functionality. The power sequencer can be programmed to

wait for either a rising or falling edge of the WAIT_STEP input, see Section 8.9.5. The active edge is

selected from GPIO<x>_TYPE.

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