DA6021 datasheet(132/225 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

132 of 224

www.dialog-semiconductor.com

Power Source Detection Events

14.6

The events generated from the Power Source Detection Logic and driven into the event interface are:



Battery Insertion Event.



Battery Removal Event.



USB Insertion Event.



USB Removal Event.



DCIN Insertion Event.



DCIN Removal Event.



VSYS Valid Event

All power source detection events will generate an Interrupt towards the SoC



Battery wake-up



AC/DC wake-up



USB wake-up

Wake-Up Logic

14.7

In order to make decision about the wakeup, SYSCO takes status information regarding power supply source

and the power button and event generated from these. Following table shows the wakeup decision.

Events

Condition to be Fulfilled

Comments

Battery Insertion



BATWAKEEN = 1



BATLOW_B = 1

Regardless of other power supplies

status.

AC Adapter

Insertion



ADPWAKEEN = 1



BATLOW_B = 1



DCBOOT = 0

Dependency on battery status



ADPWAKEEN = 1



BATLOW_B = 1



DCBOOT = 1

No dependency on battery status

USB Insertion



USBWAKEEN = 1



BATLOW_B = 1



Battery Present.

Wakeup is not allowed if we are

running only on USB.

Battery

Becomes Valid



BATLOW_B = 1



ADPWAKEEN = 1

Battery present. AC/DC insertion

event (DCBOOT = 0). The wakeup is

only delayed till battery is charged

enough (VBAT > BATLOW)..



BATLOW_B = 1



USBWAKEEN = 1

Battery present. USB insertion event.

The wakeup is only delayed till

battery is charged enough.

Power Button



BATLOW_B = 1

System running on battery



PWRBTNWAKE.USBWAKE = 01



PWRBTNWAKE.USBWAKE = 10

Battery present and charging from

USB. Battery not charged enough.

01 = DCP charging wakeup

11 = SDP (500mA) charging wakeup

With 100mA USB source there is not

boot possible.



PWRBTNWAKE.ACDCWAKE = 1



DCBOOT = 0

Battery present and charging from

AC/DC. Battery still not charged

enough.



DCBOOT = 1



BSTRMDETRN = 0

Wakeup immediately

Table 98: System Wake-Up Condition

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