DA6021 datasheet(33/225 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

33 of 224

www.dialog-semiconductor.com

Event Trigger

Conditions (all

mandatory)

Next state

Note

Input power Source removal and

Main Battery Removal/Depletion

VSYS < VMIN

VBATBKUP>VMIN

DA6021 loses states, except

RTC powered registers

Restart with default values

except RTC powered registers

VSYS < VMIN

VBATBKUP<VMIN

DA6021 loses states, RTC

powered registers loses states

Re-start with default values

See event and conditions in Cold off Triggers

SOC_G3

See “Cold Off Triggers”

Power Button Held

Power Button held

time < PBCONFIG

.FCOT[3:0]

S0iX

DA6021 passes PWRBTN_B

information to SoC. SoC

toggles SLP_S0iX_B = 0 to

enter S0iX

Warm Reset

PLTRST_B=0

SOC_S0

Resets I2C and SVID

SLP_S0iX_B

SLP_S0iX_B=0

Or SLP_S3_B=0

Or SLP_S$_B =0

SOC_S0iX

Enter S0iX state

Table 8:SOC S0 State Transition

SOC S0iX State

9.3.2

The SOC supports three possible standby states: S0IX, S3, and S4. Each of these states represents a different

level of SOC standby, with S0IX being the “shallowest” (highest power) and S4 being the “deepest” (lowest

power). Each of these three sub-states has its own entry task list, required because of the different states of

power rails in each.

The entering and exiting of the SOC S0IX state is controlled by a signal which is delivered to DA6021 by the

SOC via a dedicated physical pin SLP_S0IX_B.



Rails that are on:

They are shown in the power sequencing diagrams

VRs shall be placed in PFM/power save mode

Internal PMIC rails



Interfaces available:

SVID is ON in S0IX

I2C is ON in S0IX



Input source comparators and interrupts active.



All registers powered, with states retained.



Thermal monitoring and VR current measurements are disabled by default. If enabled, the measurements

are taken at standby frequency.

The events causing a transition out of the ‘SOC S0IX’ state are shown in the table below.

Event Trigger

Conditions (all

mandatory)

Next state

Note

Input power Source removal and

Main Battery Removal/Depletion

VSYS < VMIN

VBATBKUP>VMIN

DA6021 loses states, except

RTC powered registers

Restart with default values

except RTC powered registers

VSYS < VMIN

VBATBKUP<VMIN

DA6021 loses states, RTC

powered registers loses states

Re-start with default values

See event and conditions in Cold off Triggers

SOC_G3

See “Cold Off Triggers”

Power Button Held

Power Button held

time < PBCONFIG

S0iX

DA6021 passes PWRBTN_B

information to SoC. SoC

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