Specification Sheet

Interfaces
38 Intel
®
Xeon
®
Processor E5-1600/E5-2600/E5-4600 v2 Product Families
Datasheet Volume One of Two
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.
2.5.2.5 WrPkgConfig()
The WrPkgConfig() command provides write access to the package configuration space
(PCS) within the processor, including various power and thermal management
functions. Typical PCS write services supported by the processor may include power
limiting, thermal averaging constant programming and so on. Refer to Section 2.5.2.6
for more details on processor-specific services supported through this command.
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 .
CC: 0x81 Response timeout. The processor is not able to allocate resources for servicing this
command at this time. Retry is .
CC: 0x90 Unknown/Invalid/Illegal Request
CC: 0x91 PECI control hardware, firmware or associated logic error. The processor is unable to
process the request.
CC: 0x93 Pcode MCA - PECI access allowed, but PECI access cannot be completed.
CC: 0x94 Pcode MCA - PECI access allowed and access completes. Will respond with the data along
with the response code.