W83791G Datasheet, PDF (24/99 Pages) Winbond – Winbond H/W Monitoring IC

W83791D/G
Platform Event Trap (PET), continued.
PET VARIABLE BINDING FIELD
Sensor Device
Sensor Number
Entity ID
Entity Instance
Event Status Index
DESCRIPTION
The Sensor Device is the SMBus address of the sensor
that caused the event for the PET frame.
The Sensor Number is used to identify a given instance
of a sensor relative to the Sensor Device.
The Entity ID indicates the platform entity the event is
associated with. E.g. processor, system board, etc.
The Entity Instance indicates which instance of the Entity
the event is for. E.g. processor 1 or processor 2.
The Event Status Index identifies a unique event
monitored by the ASF-sensor. It is zero-based,
sequential, continuous, and ranging form 0-37h.
Event Status
The Event Status indicates the event state of the ASF-
sensor device associated with the message’s Event
Status Index.
Event Severity
The Event Severity gives the management station an
indication of the severity of the event in the PET frame.
Typical values are Monitor (0x01), Non Critical (0x08), or
Critical Condition (0x10).
Following is the illustration of ASF SMBus command for Get Event Data.
17
1
1
S Slave Address Wr A
ASF-sensor 0
0
Address
8
1
Command
A
Sensor Device 0
0000 0001
8
1
Wr Byte Count A
…
0000 0100
0
8
1
Wr Data 1
A
Sub Command 0
Get Event Data
0001 0001
8
1
Wr Data A
2
Version 0
Number
0001
0000
8
1
Wr Data 3
A
Event
Index
00ii iiii
Status 0
17
1
1
8
Sr Slave Address
R
A
Rd Byte Count
ASF-sensor Address 1
0
0000 1010 to
0000 1111
8
1
Wr Data 4 A …
Reserved 0
0000 0000
1
A…
0
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Publication Release Date: April 14, 2006
Revision 1.1