Platform Environment Control Interface (Peci); Interface Clocking; Internal Clocking Requirements; Processor Reference Clock Requirements - Intel BX80605X3430 - Xeon 2.4 GHz Processor Datasheet

Interfaces
2.4

Platform Environment Control Interface (PECI)

The PECI is a one-wire interface that provides a communication channel between
processor and a PECI master, usually the PCH. 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.
2.5

Interface Clocking

2.5.1

Internal Clocking Requirements

Table 2-4.

Processor Reference Clock Requirements

BCLK[0]/BCLK#[0]
PEG_CLK/PEG_CLK#
Datasheet, Volume 1
Reference Input Clocks Input Frequency
133 MHz Processor/Memory
100 MHz PCI Express/DMI
§ §
Associated PLL
29