ADLINK Express-BE User Manual
Page 28
Page 28
Express-BE
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
PD
100K
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
PD
100K
IF DDI3_DDC_AUX_SEL is floating
I/O PCIe
DP2_AUX+
DDI3_CTRLCLK_AUX+
C36
IF DDI3_DDC_AUX_SEL pulled high
I/O OD 3.3V
HDMI2_CTRLCLK
IF DDI3_DDC_AUX_SEL is floating
I/O PCIe
DP2_AUX+
DDI3_CTRLCLK_AUX- C37
IF DDI3_DDC_AUX_SEL pulled high
I/O OD 3.3V
HDMI2_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