Thermal/Mechanical Specifications and Design Guide
59
PECI Interface
7.1.2.3.2
Supported Responses
The typical client response is a passing FCS and valid thermal data. Under some
conditions, the client’s response will indicate a failure. GetTemp() response definitions
are listed in
for more details on sensor errors.
7.1.2.4
RdPkgConfig()
The RdPkgConfig() command provides read access to the package configuration space
(PCS) within the processor, including various power and thermal management
functions. Typical PCS read services supported by the processor may include access to
temperature data, energy status, run time information, DIMM temperatures and so on.
Refer to
for more details on processor-specific services supported
through this command.
7.1.2.4.1
Command Format
The RdPkgConfig() format is as follows:
Write Length:
0x05
Read Length:
0x05 (dword)
Command:
0xA1
Description
: Returns the data maintained in the processor package configuration
space for the PCS entry as specified by the ‘index’ and ‘parameter’ fields. The ‘index’
field contains the encoding for the requested service and is used in conjunction with the
‘parameter’ field to specify the exact data being requested. The Read Length dictates
the desired data return size. This command supports only dword responses on the
processor PECI clients. All command responses are prepended with a completion code
that contains additional pass/fail status information. Refer to
for details
regarding completion codes.
Table 7-3.
GetTemp() Response Definition
Response
Meaning
General Sensor Error (GSE)
Thermal scan did not complete in time. Retry is appropriate.
Bad Write FCS
Electrical error
Abort FCS
Invalid command formatting (mismatched RL/WL/Command Code)
0x0000
Processor is running at its maximum temperature or is currently being reset.
All other data
Valid temperature reading, reported as a negative offset from the processor
T
jmax.
Summary of Contents for BX80619I73820
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Page 14: ...Introduction 14 Thermal Mechanical Specifications and Design Guide...
Page 104: ...Thermal Solutions 104 Thermal Mechanical Specifications and Design Guide...
Page 112: ...Mechanical Drawings 112 Thermal Mechanical Specifications and Design Guide...
Page 118: ...Socket Mechanical Drawings 118 Thermal Mechanical Specifications and Design Guide...
Page 124: ...Package Mechanical Drawings 124 Thermal Mechanical Specifications and Design Guide...
