Intel E5-2470 CM8062007187242 User Manual
Product codes
CM8062007187242
66
Intel® Xeon® Processor E5-1600/E5-2600/E5-4600 Product Families
Datasheet Volume One
2.5.2.9.1
Command Format
The RdPCIConfigLocal() format is as follows:
Write Length: 0x05
Read Length: 0x02 (byte), 0x03 (word), 0x05 (dword)
Command: 0xe1
Description: Returns the data maintained in the PCI configuration space within the
processor at the requested PCI configuration address. The Read Length dictates the
desired data return size. This command supports byte, word and dword responses as
well as a completion code. All command responses are prepended with a completion
code that includes additional pass/fail status information. Refer to
processor at the requested PCI configuration address. The Read Length dictates the
desired data return size. This command supports byte, word and dword responses as
well as a completion code. All command responses are prepended with a completion
code that includes additional pass/fail status information. Refer to
details regarding completion codes.
Note:
are sent in standard PECI ordering with
LSB first and MSB last.
2.5.2.9.2
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.
Under some conditions, the client’s response will indicate a failure.
The PECI client response can also vary depending on the address and data. It will
respond with a passing completion code if it successfully submits the request to the
appropriate location and gets a response.
respond with a passing completion code if it successfully submits the request to the
appropriate location and gets a response.
Figure 2-47. RdPCIConfigLocal()
0
1
2
3
Byte #
FCS
12
7
9
Completion
Code
LSB PCI Configuration Address MSB
10
Write Length
0x05
LSB Data (1, 2 or 4 bytes) MSB
5
Cmd Code
0xe1
14
Read Length
{0x02,0x03,0x05}
6
8
Host ID[7:1] &
Retry[0]
Client Address
13
4
11
FCS
Byte
Definition
Table 2-13. RdPCIConfigLocal() Response Definition (Sheet 1 of 2)
Response
Meaning
Bad 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 was 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.