Intel X5670 AT80614005130AA User Manual
Product codes
AT80614005130AA
Thermal Specifications
140
Intel
®
Xeon
®
Processor 5600 Series Datasheet Volume 1
command responses are prepended with a completion code that includes additional
pass/fail status information. Refer to
pass/fail status information. Refer to
for details regarding completion
codes.
Note that the 4-byte PCI configuration address defined above is sent in standard PECI
ordering with LSB first and MSB last.
ordering with LSB first and MSB last.
7.3.2.4.2
Supported Responses
The typical client response is a passing FCS, a passing Completion Code (CC) and valid
Data. Under some conditions, the client’s response will indicate a failure.
Data. Under some conditions, the client’s response will indicate a failure.
7.3.2.5
PCIConfigWr()
The PCIConfigWr() command gives sideband write access to the PCI configuration
space maintained in the processor. The exact listing of supported devices, functions is
defined below in
space maintained in the processor. The exact listing of supported devices, functions is
defined below in
. PECI originators may conduct a device/function/register
enumeration sweep of this space by issuing reads in the same manner that BIOS
would.
would.
Figure 7-21. PCIConfigRd()
Byte #
Byte
Definition
0
Client Address
1
Write Length
0x05
2
Read Length
{0x02,0x03,0x05}
8
FCS
3
Cmd Code
0xc1
9
Completion
Code
10
Data 0
...
8+RL
Data N
9+RL
FCS
4
5
6
7
LSB
MSB
PCI Configuration Address
Table 7-22. PCIConfigRd() Response Definition
Response
Meaning
Abort FCS
Illegal command formatting (mismatched RL/WL/Command Code)
CC: 0x40
Command passed, data is valid
CC: 0x80
Error causing a response timeout. Either due to a rare, internal timing condition or a
processor RESET or processor S1 state. Retry is appropriate outside of the RESET or
S1 states.
Table 7-23. PCIConfigWr() Device/Function Support (Sheet 1 of 2)
Writable
Description
Device
Function
2
1
Intel®
QuickPath Interconnect Link 0 Intel IBIST
2
5
Intel®
QuickPath Interconnect Link 1 Intel IBIST
3
4
Memory Controller Intel IBIST
1