Copyright
©
2022
congatec
GmbH
TCTOm01
51/70
Signal
Pin # Description
I/O
PU/PD
Comment
DDI2_DDC_AUX_SEL
C34
Selects the function of DDI2_CTRL and DDI2_CTRLDATA_AUX-.
This pin shall have a 1M 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 3.3V
PD 1 MΩ
DDI
DDI3_PAIR0-
C39
C40
Multiplexed with DP and TMDS
Multiplexed with DP3_LANE0- and TMDS3_DATA2-
O PCIE
DDI
DDI3_PAIR1-
C42
C43
Multiplexed with DP and TMDS
Multiplexed with DP3_LANE1- and TMDS3_DATA1-
O PCIE
DDI
DDI3_PAIR2-
C46
C47
Multiplexed with DP and TMDS
Multiplexed with DP3_LANE2- and TMDS3_DATA0-
O PCIE
DDI
DDI3_PAIR3-
C49
C50
Multiplexed with DP and TM
Multiplexed with DP3_LANE3- and TMDS3_CLK-
O PCIE
DDI3_HPD
C44
Multiplexed with DP3_HPD and HDMI3_HPD
I 3.3 V
PD 1 MΩ
DDI3_CTRL
C36
Multiplexed with 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
I/O PCIE
I/O OD 3.3 V
PD 100 kΩ
DDI3_CTRLDATA_AUX-
1
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
I/O PCIE
I/O OD 3.3 V
PU 100 kΩ
3.3 V
Bootstrap signal (see note below).
DDI enable strap is already
populated.
DDI3_DDC_AUX_SEL
C38
Selects the function of DDI3_CTRL 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
I 3.3 V
PD 1 MΩ
Note
1.
These 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 “Bootstrap Signals”.
Table 18 TMDS Signal Descriptions
Signal
Pin # Description
I/O
PU/PD
Comment
TMD
TMDS1_CLK -
D36
D37
TMDS Clock output differential pair
Multiplexed with DDI and DDI1_PAIR3-
O PCIE
TMDS
TMDS1_DATA0-
D32
D33
TMDS differential pair
Multiplexed with DDI and DDI1_PAIR2-
O PCIE
TMDS
TMDS1_DATA1-
D29
D30
TMDS differential pair
Multiplexed with DDI and DDI1_PAIR1-
O PCIE
TMDS
TMDS1_DATA2-
D26
D27
TMDS differential pair
Multiplexed with DDI and DDI1_PAIR0-
O PCIE