W83793G Datasheet, PDF (91/131 Pages) Winbond – Winbond H/W Monitor

W83793G
BIT
DESCRIPTION
Absent4 (PECI Agent 4 Absent Bit).
7
0_BIN: Agent 4 is detected.
1_BIN: Agent 4 cannot be detected.
Absent3 (PECI Agent 3 Absent Bit).
6
0_BIN: Agent 3 is detected.
1_BIN: Agent 3 cannot be detected.
Absent2 (PECI Agent 2 Absent Bit).
5
0_BIN: Agent 2 is detected.
1_BIN: Agent 2 cannot be detected.
Absent1 (PECI Agent 1 Absent Bit).
4
0_BIN: Agent 1 is detected.
1_BIN: Agent 1 cannot be detected.
Alert4 (PECI Agent 4 Alert Bit).
3
0_BIN: Agent 4 has good FCS.
1_BIN: Agent 4 has bad FCS in last 3 transactions.
Alert3 (PECI Agent 3 Alert Bit).
2
0_BIN: Agent 3 has good FCS.
1_BIN: Agent 3 has bad FCS in last 3 transactions.
Alert2 (PECI Agent 2 Alert Bit).
1
0_BIN: Agent 2 has good FCS.
1_BIN: Agent 2 has bad FCS in last 3 transactions.
Alert1 (PECI Agent 1 Alert Bit).
0
0_BIN: Agent 1 has good FCS.
1_BIN: Agent 1 has bad FCS in last 3 transactions.
While PECI is activated, Alert flag will be asserted when corresponding agent return successive 3 time
bad FCS. In this case, W83793G will think this agent has some problem in interface, and for safty
reason W83793G will turn on the related Fan to full speed in SmartFan mode. The Fan and PECI
agent relationship is defined in TempFanSelect registers.
8.12.2.5 Agent Relative Temperature Register (AgtRelTemp)
These registers return the raw data retrieved from PECI interface. They may be the error code (range:
8000H~81FFH) or relative temperature to processor defined PROCHOT#. Error code will only update
in AgtRelTemp, Absolute Temp will not be updated when error code received. If ReturnHigh
mechanism is activated, normal temperature will always return first. In case both 2 domain returns
error, return priority will be Overflow error > Underflow Error > Missing diode > General Error. Reset
value is 8001_HEX due to PECI is default turned off, in PECI, 8001_HEX means diode missing.
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Publication Release Date: Dec. 11, 2006
Revision 1.0