ADLINK cExpress-BL - Manual (Page 27)

cExpress-BL 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 Not supported
DDI3_HPD C44 Not supported
IF DDI3_DDC_AUX_SEL is floating I/O PCIe Not supported DDI3_CTRLCLK_AUX+
C36
IF DDI3_DDC_AUX_SEL pulled high I/O OD 3.3V Not supported
IF DDI3_DDC_AUX_SEL is floating I/O PCIe Not supported DDI3_CTRLCLK_AUX- C37
IF DDI3_DDC_AUX_SEL pulled high I/O OD 3.3V Not supported
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 Not supported