Congatec COM Express conga-TCA3 User Manual page 47

Signal Pin # Description
DDI2_CTRLCLK_AUX+ C32 Multiplexed with DP2_AUX+ and HDMI2_CTRLCLK
DP AUX+ function if DDI2_DDC_AUX_SEL is no connect
HDMI/DVI I2C CTRLCLK if DDI2_DDC_AUX_SEL is pulled high
DDI2_CTRLDATA_AUX- C33 Multiplexed with DP2_AUX- and HDMI2_CTRLDATA
DP AUX- function if DDI2_DDC_AUX_SEL is no connect
HDMI/DVI I2C CTRLDATA if DDI2_DDC_AUX_SEL is pulled high
DDI2_DDC_AUX_SEL C34 Selects the function of DDI2_CTRLCLK_AUX+ and DDI2_CTRLDATA_
AUX-. 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
DDI3_PAIR0+ C39 Multiplexed with DP3_LANE0+ and TMDS3_DATA2+
DDI3_PAIR0- C40 Multiplexed with DP3_LANE0- and TMDS3_DATA2-
DDI3_PAIR1+ C42 Multiplexed with DP3_LANE1+ and TMDS3_DATA1+
DDI3_PAIR1- C43 Multiplexed with DP3_LANE1- and TMDS3_DATA1-
DDI3_PAIR2+ C46 Multiplexed with DP3_LANE2+ and TMDS3_DATA0+
DDI3_PAIR2- C47 Multiplexed with DP3_LANE2- and TMDS3_DATA0-
DDI3_PAIR3+ C49 Multiplexed with DP3_LANE3+ and TMDS3_CLK+
DDI3_PAIR3- C50 Multiplexed with DP3_LANE3- and TMDS3_CLK-
DDI3_HPD C44 Multiplexed with DP3_HPD and HDMI3_HPD
DDI3_CTRLCLK_AUX+ C36 Multiplexed with DP3_AUX+ and HDMI3_CTRLCLK
DP AUX+ function if DDI3_DDC_AUX_SEL is no connect
HDMI/DVI I2C CTRLCLK if DDI3_DDC_AUX_SEL is pulled high
DDI3_CTRLDATA_AUX- C37 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
DDI3_DDC_AUX_SEL C38 Selects the function of DDI3_CTRLCLK_AUX+ and DDI3_CTRLDATA_
AUX-. 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
Note
1. 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 8.2 "Boot Strap Signals".
2. The second DDI channel (DDI2) is only available if LVDS is not enabled. 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 © 2014 congatec AG
I/O PU/PD
I/O PCIE PD100k @ DP
I/O OD mode,
3.3V PU 3.0k 3.3V @
HDMI/DVI mode
I/O PCIE PU 100k 3.3V@
I/O OD DP mode, PU
3.3V 3.0k 3.3V @
HDMI/DVI mode
I 3.3V PD 1M
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
TA30m16
Comment
Boot strap signal (see note below).
Enable strap is already populated
Not supported
Not supported
Not supported
Not supported
Not supported
Not supported
Not supported
Not supported
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