cExpress-TL User’s Guide
PICMG COM.0 R3.0
Page 46
Copyright © 2021 ADLINK Technology, Inc.
4.4.3.2.
HDMI Mode
Name
Pin #
Description
I/O
PU / PD
Comment
TMDS
TMDS1_DATA2-
TMDS
TMDS1_DATA1-
TMDS
TMDS1_DATA0-
D26
D27
D29
D30
D32
D33
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
TMDS1_CLK-
D36
D37
HDMI Port, Differential Pair Clock Lines
HDMI_HPD C24
Detection of Hot Plug / Unplug and notification of
the link layer
I 3.3V
PD 100K
HDMI1_CTRLCLK
D15
I2C_CLK Line for HDMI
I/O PCIE
PU 2.2K
AC couple on Module
HDMI1_CTRLDATA
D16
I2C_DAT Line for HDMI
I/O PCIE
PU 2.2K
AC couple on Module
DDI1_DDC_AUX_SEL D34 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