cExpress-TL User’s Guide
PICMG COM.0 R3.0
Page 52
Copyright © 2021 ADLINK Technology, Inc.
4.4.5.2.
HDMI Mode
Name
Pin #
Description
I/O
PU / PD
Comment
TMDS
TMDS3_DATA2-
TMDS
TMDS3_DATA1-
TMDS
TMDS3_DATA0-
C39
C40
C42
C43
C46
C47
HDMI / DVI Port, Differential Pair Data Lines
O PCIE
AC coupled off Module
100 nF DC blocking capacitors shall be placed on
the Carrier
TM
TMDS3_CLK-
C49
C50
HDMI Port, Differential Pair Clock Lines
HDM3_HPD C44
Detection of Hot Plug / Unplug and notification of
the link layer
I 3.3V
PD 100K
HDMI3_CTRLCLK
C36
I2C_CLK Line for HDMI
I/O PCIE
PU 2.2K
AC couple on Module
HDMI3_CTRLDATA
C37
I2C_DAT Line for HDMI
I/O PCIE
PU 2.2K
AC couple on Module
DDI3_DDC_AUX_SEL C38 Strapping Signal to select HDMI or DP output
1M pull-down to logic ground enables HDMI Leve
this signal floating enables Displayport mode
I 3.3V
PD 1M
HDMI mode enabled