ADLINK Express-HLE User Manual
Page 27

Express-HLE
Page 27
DDI 2
Signal
Pin
Description
I/O
PU/PD
Comment
DDI2_PAIR0+ 
DDI2_PAIR0- 
DDI2_PAIR1+ 
DDI2_PAIR1- 
DDI2_PAIR2+ 
DDI2_PAIR2- 
DDI2_PAIR3+ 
DDI2_PAIR3- 
D39 
D40 
D42 
D43 
D46 
D47 
D49 
D50 
Digital Display Interface2 differential pairs
DDI2_HPD D44
IF DDI2_DDC_AUX_SEL is floating
I/O PCIe
DP2_AUX+
DDI2_CTRLCLK_AUX+ 
 
C32
IF DDI2_DDC_AUX_SEL pulled high
I/O OD 3.3V
HDMI2_CTRLCLK
IF DDI2_DDC_AUX_SEL is floating
I/O PCIe
DP2_AUX+
DDI2_CTRLCLK_AUX- C33
IF DDI2_DDC_AUX_SEL pulled high
I/O OD 3.3V
HDMI2_CTRLDATA
DDI2_DDC_AUX_SEL
C34
Selects the function of DDI2_CTRLCLK_AUX+ 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 
CRTLCLK and CTRLDATA signals. 
PD
1M
DDI 3
Signal
Pin
Description
I/O
PU/PD
Comment
DDI3_PAIR0+ 
DDI3_PAIR0- 
DDI3_PAIR1+ 
DDI3_PAIR1- 
DDI3_PAIR2+ 
DDI3_PAIR2- 
DDI3_PAIR3+ 
DDI3_PAIR3- 
C39 
C40 
C42 
C43 
C46 
C47 
C49 
C50 
Digital Display Interface3 differential pairs
DDI3_HPD C44
IF DDI3_DDC_AUX_SEL is floating
I/O PCIe
DP3_AUX+
DDI3_CTRLCLK_AUX+ 
 
C36
IF DDI3_DDC_AUX_SEL pulled high
I/O OD 3.3V
HDMI3_CTRLCLK
IF DDI3_DDC_AUX_SEL is floating
I/O PCIe
DP3_AUX+
DDI3_CTRLCLK_AUX- C37
IF DDI3_DDC_AUX_SEL pulled high
I/O OD 3.3V
HDMI3_CTRLDATA
DDI3_DDC_AUX_SEL C38 Selects
the
function of DDI3_CTRLCLK_AUX+
and DDI3_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 CRTLCLK and 
CTRLDATA signals. 
PD
1M
