Intel W5590 AT80602000753AA User Manual

Product codes
AT80602000753AA
Page of 154
Thermal Specifications
110
Intel
®
 Xeon
®
 Processor 5500 Series Datasheet, Volume 1
6.3.2.2.2
Device Info
The Device Info byte gives details regarding the PECI client configuration. At a 
minimum, all clients supporting GetDIB will return the number of domains inside the 
package via this field. With any client, at least one domain (Domain 0) must exist. 
Therefore, the Number of Domains reported is defined as the number of domains in 
addition to Domain 0. For example, if the number 0b1 is returned, that would indicate 
that the PECI client supports two domains.
6.3.2.2.3
Revision Number
All clients that support the GetDIB command also support Revision Number reporting. 
The revision number may be used by a host or originator to manage different command 
suites or response codes from the client. Revision Number is always reported in the 
second byte of the GetDIB() response. The Revision Number always maps to the 
revision number of this document.
For a client that is designed to meet the specification, the Revision Number it returns 
will be ‘0010 0000b’.
Figure 6-11. GetDIB()
Byte #
Byte 
Definition
0
Client Address
1
Write Length
0x01
2
Read Length
0x08
4
FCS
3
Cmd Code
0xf7
5
Device Info
6
Revision 
Number
7
Reserved
8
Reserved
9
Reserved
10
Reserved
11
Reserved
12
Reserved
13
FCS
Figure 6-12. Device Info Field Definition
Reserved
# of Domains
Reserved
7 6 5 4 3 2 1 0
Figure 6-13. Revision Number Definition
0
3
4
7
Major Revision#
Minor Revision#