Signal Description; Graphic Signal Description - Kontron COM Express Extension Specification

4

Signal Description

4.1

Graphic Signal Description

Based on the different available graphic interfaces offered by the different chipsets from silicon
vendors including Intel, ATI, VIA, etc., there is a need for optional assignment in addition to the ones
already defined by PICMG in the COM.0 specification. These will allow for ease when integrating
upcoming new graphic interfaces while still assuring compatibility of COM Express™ compliant
modules and carrier boards.
Graphic signals are defined on Row C and Row D.
The following table describes the signal uses up on the required graphic interface.
4.1.1 Table – Graphic Signal Description - Row C for Pin-out Type 2
Row C
PCIE x 16
Definition
Pin No. Pin Name
C52 PEG_RX0+
C53 PEG_RX0-
C54 TYPE0#
C55 PEG_RX1+
C56 PEG_RX1-
C57 TYPE1#
C58 PEG_RX2+
C59 PEG_RX2-
C60 GND (FIXED)
C61 PEG_RX3+
C62 PEG_RX3-
C63 RSVD
C64 RSVD
C65 PEG_RX4+
C66 PEG_RX4-
C67 RSVD
C68 PEG_RX5+
C69 PEG_RX5-
C70 GND (FIXED)
C71 PEG_RX6+
C72 PEG_RX6-
C73 SDVO_DATA
C74 PEG_RX7+
C75 PEG_RX7-
C76 GND
C77 RSVD
Copyright © COM Express™ Extension
Specification Rev 013
SDVO TMDS(DVI)/HDMI/DVO
SDVO_TVCLK+ HDMI_TVCLKIN
SDVO_TVCLK- HDMI_TVCLKIN#
TYPE0# TYPE0#
SDVOB_INT+
SDVOB_INT-
TYPE1# TYPE1#
SDVO_FLDSTALL+ TMDS_DDC_DAT
SDVO_FLDSTALL- TMDS_DDC_CLK
GND (FIXED) GND (FIXED)
TMDS_HPD
RSVD RSVD
RSVD RSVD
RSVD RSVD
SDVOC_INT+
SDVOC_INT-
GND (FIXED) GND (FIXED)
TMDS_2_DDC_DAT
TMDS_2_DDC_CLK
SDVO_DATA
TMDS_2_HPD
GND
RSVD
12
4 Signal Description
Display Port
TYPE0#
TYPE1#
DPB_AUX
DPB_AUXB
GND (FIXED)
DPB_HPD
RSVD
RSVD
RSVD
GND (FIXED)
DPC_AUX
DPC_AUXB
DPC_HPD
GND
RSVD