Intel C2530 FH8065401488915 データシート
製品コード
FH8065401488915
Intel
®
Atom™ Processor C2000 Product Family for Microserver
September 2014
Datasheet, Vol. 2 of 3
Order Number: 330061-002US
377
Volume 2—SMBus 2.0 Unit 2 - PECI—C2000 Product Family
17
SMBus 2.0 Unit 2 - PECI
The Platform Environment Control Interface (PECI) was developed to replace I
2
C as the
methodology of reading CPU temperatures. The PECI specification has evolved
overtime to provide a broader management interface to manage the platform. The
current PECI specification is RS - Platform Environment Control Interface (PECI)
Specification, Revision 3.0. In non-SoC environments, the PECI slave interface is
implemented in the CPU complex, while the master interface is in the Platform Control
Hub (PCH) and/or Base Board Management Controller (BMC). The PECI implementation
only allows a single master on the bus.
On the SoC platform, the BMC acts as a PECI master and the SoC SMBus-for-PECI
controller described in this chapter acts as a slave PECI proxy controller. The PECI
commands are encapsulated within SMBus packets sent to the SoC. Additional, new
PECI commands have been defined for the SoC, specific to its architecture.
Figure 17-1. SMBus PECI Covered in This Chapter
Table 17-1. References
Reference
Revision
Date
Document Title
SMBus
2.0
August 3, 2000
System Management Bus (SMBus) Specification,
Version 2.0
PECI 3.0
Specification
31631
3.0
Mar. 15, 2012
RS - Platform Environment Control Interface (PECI)
Specification,
Revision 3.0
I
O
SMBus2
PECI
I
O