Intel® Xeon® Processor E5-1600/E5-2600/E5-4600 Product Families
75
Datasheet Volume One
2.5.5
Client Responses
2.5.5.1
Abort FCS
The Client responds with an Abort FCS under the following conditions:
• The decoded command is not understood or not supported on this processor (this
includes good command codes with bad Read Length or Write Length bytes).
• Assured Write FCS (AW FCS) failure. Under most circumstances, an Assured Write
failure will appear as a bad FCS. However, when an originator issues a poorly
formatted command with a miscalculated AW FCS, the client will intentionally abort
the FCS in order to guarantee originator notification.
2.5.5.2
Completion Codes
Some PECI commands respond with a completion code byte. These codes are designed
to communicate the pass/fail status of the command and may also provide more
detailed information regarding the class of pass or fail. For all commands listed in
Section 2.5.2
that support completion codes, the definition in the following table
applies. Throughout this document, a completion code reference may be abbreviated
with ‘CC’.
An originator that is decoding these commands can apply a simple mask as shown in
Table 2-21
to determine a pass or fail. Bit 7 is always set on a command that did not
complete successfully and is cleared on a passing command.
Note:
The codes explicitly defined in
Table 2-22
may be useful in PECI originator response
algorithms. Reserved or undefined codes may also be generated by a PECI client
device, and the originating agent must be capable of tolerating any code. The Pass/Fail
mask defined in
Table 2-21
applies to all codes, and general response policies may be
based on this information. Refer to
Section 2.5.6
for originator response policies and
recommendations.
Table 2-21. Completion Code Pass/Fail Mask
0xxx xxxxb
Command passed
1xxx xxxxb
Command failed
Table 2-22. Device Specific Completion Code (CC) Definition
Completion
Code
Description
0x40
Command Passed
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 was not able to allocate resources for servicing this
command. Retry is appropriate.
CC: 0x82
The processor hardware resources required to service this command are in a low power
state. Retry may be appropriate after modification of PECI wake mode behavior if
appropriate.
CC: 0x83-8F
Reserved
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: 0x92-9F
Reserved
Содержание Xeon Processor E5-1600
Страница 12: ...12 Intel Xeon Processor E5 1600 E5 2600 E5 4600 Product Families Datasheet Volume One...
Страница 78: ...78 Intel Xeon Processor E5 1600 E5 2600 E5 4600 Product Families Datasheet Volume One...
Страница 86: ...Technologies 86 Intel Xeon Processor E5 1600 E5 2600 E5 4600 Product Families Datasheet Volume One...
Страница 100: ...Power Management 100 Intel Xeon Processor E5 1600 E5 2600 E5 4600 Product Families Datasheet Volume One...
Страница 152: ...Signal Descriptions 152 Intel Xeon Processor E5 1600 E5 2600 E5 4600 Product Families Datasheet Volume One...
Страница 236: ...Processor Land Listing 236 Intel Xeon Processor E5 1600 E5 2600 E5 4600 Product Families Datasheet Volume One...
Страница 258: ...Boxed Processor Specifications 258 Intel Xeon Processor E5 1600 E5 2600 E5 4600 Product Families Datasheet Volume One...