Intel BX80635E51660V2 Benutzerhandbuch

Interfaces

Intel® Xeon® Processor E5-1600 v2/E5-2600 v2 Product Families

Datasheet Volume One of Two

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.

WrPCIConfigLocal()

0xe5

0xe6

Table 2-20. Multi-Domain Command Code Reference (Sheet 2 of 2)

Command Name

Domain 0

Code

Domain 1

Code

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