Filter
Top Products
Intel® Xeon® Processor E5-1600 v2/E5-2600 v2 Product Families 35
Datasheet Volume One of Two
Interfaces
2.5.2.4.1 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 Section 2.5.5.2 for details
regarding completion codes.
Note: The 2-byte parameter field and 4-byte read data field defined in Figure 2-10 are sent in standard PECI ordering with LSB
first and MSB last.
2.5.2.4.2 Supported Responses
The typical client response is a passing FCS, a passing Completion Code and valid data.
Under some conditions, the client’s response will indicate a failure.
Figure 2-10. RdPkgConfig()
Table 2-4. RdPkgConfig() Response Definition
Response Meaning
Bad Write FCS Electrical error
Abort FCS Illegal command formatting (mismatched RL/WL/Command Code)
CC: 0x40 Command passed, data is valid.
CC: 0x80 Response timeout. The processor is not able to generate the required response in a timely
fashion. Retry is appropriate.
CC: 0x81 Response timeout. The processor is not able to allocate resources for servicing this
command at this time. Retry is appropriate.
CC: 0x90 Unknown/Invalid/Illegal Request