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Interfaces
2.5
Platform Environment Control Interface (PECI)
The PECI is a one-wire interface that provides a communication channel between a
PECI client (processor) and a PECI master. The processor implements a PECI interface
to:
• Allow communication of processor thermal and other information to the PECI
master.
• Read averaged Digital Thermal Sensor (DTS) values for fan speed control.
2.6
Interface Clocking
2.6.1
Internal Clocking Requirements
Table 2-5.
Reference Clock
Reference Input Clock
BCLK[0]/BCLK#[0]
Input Frequency
100 MHz
Associated PLL
Processor/Memory/Graphics/PCIe/DMI/FDI
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Datasheet, Volume 1