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RT8859M View Datasheet(PDF) - Richtek Technology

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Description
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RT8859M Datasheet PDF : 51 Pages
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RT8859M
Index
00h
01h
02h
05h
06h
10h
11h
12h
15h
1Ch
Register Name
Vendor_ID
Product _ID
Product _Revis ion
Protoc ol_Version
VR_Capability
Status_1
Status_2
Temperature_Zone
Output_Current
Status_2_Lastread
Table 3. SVID Data and Configuration Register
Description
Vendor ID
Product ID
Product Revision
SVID Protocol version
Bit mapped register, identifies the SVID VR
Capabilities and which of the optional telemetry
register are supported.
Data register containing the status of VR
Data register containing the status of transmission.
Data register showing temperature Zone that have
been entered.
Data register showing direct ADC conversion of
output current, scaled to ICC_MAX = ADC full range.
Binary format (IE : 64h = 100/255 ICC_MAX)
The register contains a copy of the Status_2
21h ICC_Max
22h Temp_Max
24h SR_fast
25h SR_slow
30h VOUT_Max
31h VID_Setting
32h Power_State
33h Offset
34h Multi_VR_Config
35h Pointer
Data register containing the maximum ICC the
platform supports.
Binary format in A. (IE : 64h = 100A)
Data register containing the maximum temperature
the platform supports.
Binary format in °C. (IE : 64h = 100°C)
Not supported by AXG VR.
Data register containing the capability of fast slew
rate the platform can sustain. Binary format in
mV/μs. (IE : 0Ah = 10 mV/μs)
Data register containing the capability of slow slew
rate.
Binary format in mV/μs. (IE : 02h = 2mV/μs)
The register is programmed by the master and sets
the maximum VID.
Data register containing currently programmed VID
Register containing the current programmed power
s tate
Set offset in VID steps
Bit mapped data register which configures multiple
VRs’ behavior on the same bus
Scratch pad register for temporary storage of the
SetRegADR pointer register
Notes :
RO = Read Only
RW = Read/Write
R-M = Read by Master
W-PWM = Write by PWM only
Platform = programmed by platform
Master = programmed by the master
PWM = programmed by the VR control IC
Access
RO
RO
RO
RO
RO
R-M, W-PWM
R-M, W-PWM
R-M, W-PWM
R-M, W-PWM
R-M, W-PWM
RO, Platform
RO, Platform
RO
RO
RW, Master
RW, Master
RW, Master
RW, Master
RW, Master
RW, Master
Default
1Eh
59h
01h
01h
81h
00h
00h
00h
00h
00h
N/A
N/A
0Ah
02h
FBh
00h
00h
00h
00h
30h
Copyright ©2012 Richtek Technology Corporation. All rights reserved.
DS8859M-05 July 2012
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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