Intel BX80623I32100, Datasheet

Page: 33 / 112

Datasheet, Volume 1 33
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 2-4. Reference Clock
Reference Input Clock Input Frequency Associated PLL
BCLK[0]/BCLK#[0] 100 MHz Processor/Memory/Graphics/PCIe/DMI/FDI