3 ddi channels – ADLINK Express-HLE User Manual
Page 26

Page 26
Express-HLE
3.4.3
DDI Channels
DDI 1
Signal
Pin
Description
I/O
PU/PD
Comment
DDI1_PAIR0+ 
DDI1_PAIR0- 
DDI1_PAIR1+ 
DDI1_PAIR1- 
DDI1_PAIR2+ 
DDI1_PAIR2- 
DDI1_PAIR3+ 
DDI1_PAIR3- 
DDI1_PAIR4+ 
DDI1_PAIR4- 
DDI1_PAIR5+ 
DDI1_PAIR5- 
DDI1_PAIR6+ 
DDI1_PAIR6- 
D26 
D27 
D29 
D30 
D32 
D33 
D36 
D37 
C25 
C26 
C29 
C30 
C15 
C16 
Digital Display Interface1 differential pairs
O PCIE
 
 
 
 
 
 
 
 
Pair 4 to Pair 6 
Not supported 
 
DDI1_HPD
C24
Digital Display Interface Hot-Plug Detect
I PCIE
IF DDI1_DDC_AUX_SEL is floating
I/O PCIe
DP1_AUX+
DDI1_CTRLCLK_AUX+ D15
IF DDI1_DDC_AUX_SEL pulled high
I/O OD 3.3V
HDMI1_CTRLCLK
IF DDI1_DDC_AUX_SEL is floating
I/O PCIe
DP1_AUX+
DDI1_CTRLCLK_AUX- D16
IF DDI1_DDC_AUX_SEL pulled high
I/O OD 3.3V
HDMI1_CTRLDATA
DDI1_DDC_AUX_SEL D34
Selects
the
function of DDI1_CTRLCLK_AUX+
and DDI1_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. 
I/O OD 3.3V PD 1M
