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