Datasheet

Interfaces
Intel
®
Xeon
®
Processor C5500/C3500 Series
Datasheet, Volume 1 February 2010
72 Order Number: 323103-001
2.2.2.2 GetDIB()
The processor PECI client implementation of GetDIB() includes an 8-byte response and
provides information regarding client revision number and the number of supported
domains. All processor PECI clients support the GetDIB() command.
2.2.2.2.1 Command Format
The GetDIB() format is as follows:
Write Length: 1
Read Length: 8
Command: 0xf7
2.2.2.2.2 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.
Figure 14. 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 15. Device Info Field Definition
Reserved
# of Domains
Reserved
76543210