DA6021 datasheet(73/225 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

73 of 224

www.dialog-semiconductor.com

SVID Command Set

11.5.4

VCC & VNN implement a subset of the full VR12/IMVP7 SVID protocol

Command

Master

payload

content

Slave

payload

content

Description

01h

SetVID-fast

(Individual

address & all

call address)

VID code

Applicable for VCC & VNN. Set the new VID target, VR

Jumps to new VID target with controlled (up or down)

slew rate programmed by the VR. When VR receives

VID moving up command it will exit all low power states

to the normal state to ensure the fastest slew to the

new voltage. VR sets VR_settled bit and issues alert

when VR has reached new VID target.

02h

SetVID-slow

(Individual

address & all

call address)

VID code

Applicable for VCC & VNN. Set the VID target, VR

Jumps to new VID target with controlled slew rate (up

or down) programmed by the VR. When VR receives

VID moving up command it will exit all low power states

to the normal state. VR sets VR_settled and issues

alert when VR has reached new VID target.

03h

SetVID-decay

(Individual

address & all

call address)

VID code

Applicable for VCC & VNN. Sets the VID target, VR

jumps to new VID target, but does not control

the slew rate, the output voltage decays at a rate

proportional to the load current. SetVID_decay is

only used in VID down direction and implies VR

goes to PS2 state. VR sets VR_settled but Alert line is

not asserted for SetVID-decay

04h

SetPS

Byte

indicating

power

status of

voltage

rail

Only applicable for VCC. SoC sets the power state of

the VR according to core P-state and C-state so

that VCC VR controller can be configured to improve

efficiency, especially at light load

05h

SetRegADR

(Individual

address only.

NAK all call

address)

Address of

the index

in the data

table

Sets the address pointer in the data register table.

Typically the next command SetRegDAT is the payload

that gets loaded into this address. However for multiple

writes to the same address, only one SetRegADR is

needed.

06h.

SetRegDAT

(Individual

address only.

NAK all call

address)

New data

contents

Writes the contents to the data register that was

previously identified by the address pointer with

SetRegADR

07h

GetReg

(Individual

address only.

NAK all call

address)

Define

which

Specified

contents

Slave returns the contents of the specified register as

the payload;

The majority of the VR monitoring data is accessed

through the GetReg command.

Table 34: SVID Supported Commands

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