ADLINK Technology COM Express Express-BL User Manual page 30

DDI 2
Signal Pin
DDI2_PAIR0+ D39
DDI2_PAIR0- D40
DDI2_PAIR1+ D42
DDI2_PAIR1- D43
DDI2_PAIR2+ D46
DDI2_PAIR2- D47
DDI2_PAIR3+ D49
DDI2_PAIR3- D50
DDI2_HPD D44
DDI2_CTRLCLK_AUX+ C32
DDI2_CTRLDATA_AUX- C33
DDI2_DDC_AUX_SEL C34
DDI 3
Signal Pin
DDI3_PAIR0+ C39
DDI3_PAIR0- C40
DDI3_PAIR1+ C42
DDI3_PAIR1- C43
DDI3_PAIR2+ C46
DDI3_PAIR2- C47
DDI3_PAIR3+ C49
DDI3_PAIR3- C50
DDI3_HPD C44
DDI3_CTRLCLK_AUX+ C36
DDI3_CTRLDATA_AUX- C37
DDI3_DDC_AUX_SEL C38
Page 30
Description
Digital Display Interface2 differential pairs
IF DDI2_DDC_AUX_SEL is floating
IF DDI2_DDC_AUX_SEL pulled high
IF DDI2_DDC_AUX_SEL is floating
IF DDI2_DDC_AUX_SEL pulled high
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.
Description
Digital Display Interface3 differential pairs
IF DDI3_DDC_AUX_SEL is floating
IF DDI3_DDC_AUX_SEL pulled high
IF DDI3_DDC_AUX_SEL is floating
IF DDI3_DDC_AUX_SEL pulled high
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.
I/O PU/PD
O PCIE
I 3.3V PD 100K
I/O PCIE PD 100K
I/O OD 3.3V
I/O PCIE PU 100K
3.3V
I/O OD 3.3V
I 3.3V PD 1M
I/O PU/PD Comment
O PCIE
I 3.3V PD 100K
I/O PCIE PD 100K DP2_AUX+
I/O OD 3.3V HDMI2_CTRLCLK
PU 2.2K 3.3V when
DDC_AUX_SEL is high
I/O PCIE PU 100K DP2_AUX-
3.3V
I/O OD 3.3V HDMI2_CTRLDATA
PU 2.2K 3.3V when
DDC_AUX_SEL is high
I 3.3V PD 1M
Comment
DP2_AUX+
HDMI2_CTRLCLK
PU 2.2K 3.3V when
DDC_AUX_SEL is high
DP2_AUX-
HDMI2_CTRLDATA
PU 2.2K 3.3V when
DDC_AUX_SEL is high