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© Andigilog, Inc. 2006
www.andigilog.com
October 2006 - 70A06010
aSC7621
Temperature Measurement Configuration
Registers 02h and 03h: Zone Assignments
Register
Address
R/W
Register Name
Bit 7
(MSB)
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
(LSB)
Default
Value
Lock
Zone 1 Source
Zone 2 Source
02h
R/W
Zone 1 & 2
Assignment
RES
6
5
4
RES
2
1
0
00
X
Zone 3 Source
Zone 4 Source
03h
R/W
Zone 3 & 4
Assignment
RES
6
5
4
RES
2
1
0
00
X
The temperature measurement system has access to more temperature measuring devices than there are Temperature
Zones that may be reported to the user or used to control a fan. It is allowed that any data input may be associated with any
single Temperature Zone. However, if an attempt is made to assign a data source to more than one Temperature Zone
report, the lowest order will be assigned and the other assignment will be ignored. Do not attempt to assign a data source to
more than one Temperature Zone or multiple data sources to the same Temperature Zone.
This register becomes read-only when the Ready/Lock/Start/Override register Lock bit is set. Any further attempts to write to
this register shall have no effect.
Bit
Name
Zone 1 & 2 Assignment [02h]
Value
Data Source
000
Internal Temperature
001
Remote 1 Temperature
010
Remote 2 Temperature
011
Internal Temperature
100
PECI Processor Temperature 0
101
PECI Processor Temperature 1
110
PECI Processor Temperature 2
2:0
Zone 2 Source
111
PECI Processor Temperature 3
3
Reserved
Reserved
Value
Data Source
LEG = 0, Remote 1 Temperature
000
LEG = 1, PECI Processor Temperature 0
001
Remote 1 Temperature
010
Remote 2 Temperature
011
Internal Temperature
100
PECI Processor Temperature 0
101
PECI Processor Temperature 1
110
PECI Processor Temperature 2
6:4
Zone 1 Source
111
PECI Processor Temperature 3
7
Reserved
Reserved
Table 5 Zone 1 & 2 Temperature Reading Assignment [02h]
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