RT8876A Datasheet, PDF (13/50 Pages) Richtek Technology Corporation – Dual Channel PWM Controller with 3/2/1 Phase for CORE VR and Single Phase for AXG VR

RT8876A
Code
00h
01h
02h
03h
04h
05h
06h
07h
08h
-
1Fh
Commands
Not Supported
Table 2. Serial VID Command
Master Payload
Slave Payload
Contents
Contents
N/A
N/A
SetVID_Fast
VID code
N/A
SetVID_Slow
VID code
N/A
SetVID_Decay
VID code
N/A
SetPS
SetRegADR
SetRegDAT
GetReg
Byte indicating power
states
Pointer of registers in
data table
New data register
content
Pointer of registers in
data table
N/A
N/A
N/A
Specified
register
contents
Description
N/A
Set new target VID code, VR jumps to
new VID target with controlled default
“fast” slew rate 12.5mV/μs.
Set new target VID code, VR jumps to
new VID target with controlled default
“slow” slew rate 3.125mV/μs.
Set new target VID code, 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
Set power state
Set the pointer of the data register
Write the contents to the data register
Slave returns the contents of the
specified register as the payload.
Not Supported
N/A
N/A
N/A
Copyright ©2012 Richtek Technology Corporation. All rights reserved.
DS8876A-02 October 2012
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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