Multi-Graphics Controller Multi-Monitor Support; Platform Environment Control Interface (Peci); Interface Clocking; Internal Clocking Requirements - Intel 2ND GENERATION CORE PROCESSOR FAMILY MOBILE - DATASHEET VOLUME 1 01-2011 Datasheet

2.4.4

Multi-Graphics Controller Multi-Monitor Support

The processor supports simultaneous use of the Processor Graphics Controller (GT) and
a x16 PCI Express Graphics (PEG) device.
The processor supports a maximum of 2 displays connected to the PEG card in parallel
with up to 2 displays connected to the processor and PCH.
Note: When supporting Multi Graphics controllers Multi-Monitors, "drag and drop" between
monitors and the 2x8 PEG is not supported.
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 2-3.

Reference Clock

Reference Input Clock
BCLK/BCLK#
DPLL_REF_CLK/DPLL_REF_CLK#
36
Input Frequency
100 MHz Processor/Memory/Graphics/PCIe/DMI/FDI
120 MHz Embedded DisplayPort (eDP)
§ §
Interfaces
Associated PLL
Datasheet, Volume 1