Intel BX80646I74770 manual PCI Express*-Based Interface Signals, Display Interface Signals

December 2013 Order No.: 328897-004

Processor—Signal Description

6.4PCI Express*-Based Interface Signals

Table 34.	PCI Express* Graphics Interface Signals
	Signal Name	Description	Direction / Buffer Type
	PEG_RCOMP	PCI Express Resistance Compensation	I
			A
	PEG_RXP[15:0]	PCI Express Receive Differential Pair	I
	PEG_RXN[15:0]		PCI Express
	PEG_TXP[15:0]	PCI Express Transmit Differential Pair	O
	PEG_TXN[15:0]		PCI Express

6.5Display Interface Signals

Table 35.	Display Interface Signals
	Signal Name	Description	Direction / Buffer
			Type
	FDI_TXP[1:0]	Intel Flexible Display Interface Transmit Differential Pair	O
	FDI_TXN[1:0]		FDI
	DDIB_TXP[3:0]	Digital Display Interface Transmit Differential Pair	O
	DDIB_TXN[3:0]		FDI
	DDIC_TXP[3:0]	Digital Display Interface Transmit Differential Pair	O
	DDIC_TXN[3:0]		FDI
	DDID_TXP[3:0]	Digital Display Interface Transmit Differential Pair	O
	DDID_TXN[3:0]		FDI
	FDI_CSYNC	Intel Flexible Display Interface Sync	I
			CMOS
	DISP_INT	Intel Flexible Display Interface Hot-Plug Interrupt	I
			Asynchronous
			CMOS

6.6Direct Media Interface (DMI)

Table 36. Direct Media Interface (DMI) – Processor to PCH Serial Interface

Signal Name	Description	Direction / Buffer
		Type
DMI_RXP[3:0]	DMI Input from PCH: Direct Media Interface receive	I
DMI_RXN[3:0]	differential pair.	DMI
DMI_TXP[3:0]	DMI Output to PCH: Direct Media Interface transmit	O
DMI_TXN[3:0]	differential pair.	DMI

Desktop 4th Generation Intel® Core™ Processor Family, Desktop Intel® Pentium® Processor Family, and Desktop Intel® Celeron® Processor Family

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