DA6021 datasheet(65/225 Pages) RENESAS

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DA6021

HIGHLY INTEGRATED POWER MANAGEMENT IC FOR

INTEL® ATOM™ Z3000 PROCESSOR

Company Confidential

Data Sheet

Version 3.A - Final

31-Jan-14

65 of 224

www.dialog-semiconductor.com

PMIC Resets

10.4

The following table summarizes the reset sources for DA6021

Reset Source

Reset trigger

Reset Type/Sequence

SoC Request

PLTRST_B

Warm Reset

External Button

PWRBTN_B held longer than

time defined in FCOT[3:9]

Forced Cold Off, shutdown all voltage regulators and

return to SOC_G3 state (not waiting for any SLP_S*_B

signals from SOC

Catastrophic and

Critical Event

THERMTRIP_B

Shutdown all voltage regulators, return to SOC_G3 state

(not waiting for any SLP_S*_B signals from SOC)

PMICTEMP

System Temperature

Battery Temperature

VSYSUVP

VSYSOVP

Main Battery Removal

(BATRM, if BATRMDEN set)

BCU VCRIT ( if enabled)

Wake Event from

Cold off

Battery Insertion

Cold boot

USB Charger insertion

AC/DC Adapter insertion

PWRBTN_B pressed

Table 26 : PMIC Reset Sources

Wake Events

10.5

There are several events that can wake the system from SOC_G3 or G3 state. These are:



Battery Insertion



USB Charger Insertion



AC/DC Adapter Insertion



Power Button

All of these events can cause a System Boot if it is in SOC_G3, but booting is depending on the battery voltage.

The first 3 wake events, battery insertion, USB or AC/DC adapter insertion can cause a boot depending on the

SRCWAKECFG register as defined below:

SRCWAKECFG

Address

0xDB

Page 1

Read/Write

0x00

MSB

LSB

R/W

reserved

ADWAKEEN USBWAKEEN BATWAKEEN

BATWAKEEN

No wake up if battery insertion is detected

Wake up if battery insertion detected and further boot criteria met

USBWAKEEN

No wake up if USB charger insertion is detected

Wake up if USB charger insertion detected and further boot criteria met

ADWAKEEN

No wake up if ACDC adapter insertion is detected

Wake up if ACDC adapter insertion detected and further boot criteria

met

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