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2018
congatec
AG
TR44m17
57/65
Signal
Pin # Description
I/O
PU/PD Comment
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 3.3V
PD 100K
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
OD 3.3V
PD 100k
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.
I/O PCIE
I/OD 3.3V
PU 100k
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 3.3V
PD 1M
Note
The DDI interfaces support dual-mode DisplayPort. To support HDMI/DVI, an external level shifter (PTN3360D) should be implemented on
the user’s carrier board.
Table 31
HDMI/DVI Signal Descriptions
Signal
Pin # Description
I/O
PU/PD
Comment
TMD
TMDS1_CLK -
D36
D37
HDMI/DVI TMDS Clock output differential pair.
Multiplexed with DDI and DDI1_PAIR3-.
O PCIE
TMDS
TMDS1_DATA0-
D32
D33
HDMI/DVI TMDS differential pair.
Multiplexed with DDI and DDI1_PAIR2-.
O PCIE
TMDS
TMDS1_DATA1-
D29
D30
HDMI/DVI TMDS differential pair.
Multiplexed with DDI and DDI1_PAIR1-.
O PCIE
TMDS
TMDS1_DATA2-
D26
D27
HDMI/DVI TMDS differential pair.
Multiplexed with DDI and DDI1_PAIR0-.
O PCIE
HDMI1_HPD
C24
HDMI/DVI Hot-plug detect. Multiplexed with DDI1_HPD.
I PCIE
PD 100K
HDMI1_CTRLCLK
D15
HDMI/DVI I
2
C Control Clock. Multiplexed with DDI1_CTRL
OD 3.3V
PD 100K
2.2k to 3.3V Pull-up must be implemented on
the carrier board.
HDMI1_CTRLDATA
D16
HDMI/DVI I
2
C Control Data
Multiplexed with DDI1_CTRLDATA_AUX-
I/OD 3.3V PU 100K
3.3V
2.2k to 3.3V Pull-up must be implemented on
the carrier board.