Congatec COM Express conga-TC87 User Manual page 64

Signal
DDI2_DDC_AUX_SEL
DDI3_PAIR0+
DDI3_PAIR0-
DDI3_PAIR1+
DDI3_PAIR1-
DDI3_PAIR2+
DDI3_PAIR2-
DDI3_PAIR3+
DDI3_PAIR3-
DDI3_HPD
DDI3_CTRLCLK_AUX+
DDI3_CTRLDATA_AUX- C37
DDI3_DDC_AUX_SEL
Note
Some signals have special functionality during the reset process. They may bootstrap some basic important functions of the module. For more
information refer to section 9.5 of this user's guide.
The Digital Display Interface (DDI) signals are multiplexed with HDMI and DisplayPort (DP). The signals for these interfaces are routed to the
DDI interface of the COM Express connector. Refer to the HDMI and DisplayPort signal description tables in this section for information about
the signals routed to the DDI interface of the COM Express connector.
Copyright © 2013 congatec AG
Pin # Description
Selects the function of DDI2_CTRLCLK_AUX+ and DDI2_CTRLDATA_AUX-.
C34
This pin shall have a IM pull-down to logic ground on the module. If this input
is floating, the AUX pair is used for the DP AUX+/- signals. If pulled-high, the
AUX pair contains the CTRLCLK and CTRLDATA signals
Multiplexed with DP3_LANE0+ and TMDS3_DATA2+.
C39
Multiplexed with DP3_LANE0- and TMDS3_DATA2-.
C40
Multiplexed with DP3_LANE1+ and TMDS3_DATA1+.
C42
Multiplexed with DP3_LANE1- and TMDS3_DATA1-.
C43
Multiplexed with DP3_LANE2+ and TMDS3_DATA0+.
C46
Multiplexed with DP3_LANE2- and TMDS3_DATA0-.
C47
Multiplexed with DP3_LANE3+ and TMDS3_CLK+.
C49
Multiplexed with DP3_LANE3- and TMDS3_CLK-.
C50
Multiplexed with DP3_HPD and HDMI3_HPD.
C44
Multiplexed with DP3_AUX+ and HDMI3_CTRLCLK.
C36
DP AUX+ function if DDI3_DDC_AUX_SEL is no connect.
HDMI/DVI I2C CTRLCLK if DDI3_DDC_AUX_SEL is pulled high
Multiplexed with DP3_AUX- and HDMI3_CTRLDATA.
DP AUX- function if DDI3_DDC_AUX_SEL is no connect.
HDMI/DVI I2C CTRLDATA if DDI3_DDC_AUX_SEL is pulled high.
Selects the function of DDI3_CTRLCLK_AUX+ and DDI3_CTRLDATA_AUX-.
C38
This pin shall have a IM pull-down to logic ground on the module. If this input
is floating, the AUX pair is used for the DP AUX+/- signals. If pulled-high, the
AUX pair contains the CTRLCLK and CTRLDATA signals
I/O
I 3.3V
O PCIE
O PCIE
O PCIE
O PCIE
I 3.3V
I/O PCIE
I/O OD 3.3V
I/O PCIE
I/O OD 3.3V
I 3.3V
TU87m12
PU/PD Comment
Not supported
Not supported
Not supported
Not supported
Not supported
Not supported
Not supported
Not supported
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