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Express-TL User's Guide
4.4.4
DDI2 Port
Name
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_CTRLCLK_AUX-
C33
DDI2_DDC_AUX_SEL
C34
Note:
Dual Mode (HDMI and DisplayPort on the same pins) implementations may be realized. This is desirable for SOCs that natively implement this
capability. With such SOCs, the primary Dual Mode implementation challenge is that the HDMI_CTRL_DAT and HDMI_CTRL_CK lines are DC
coupled, but the DP_AUX+ /- pair must be AC coupled. A set of FET switches is usually used to sort this out. The FET gates can be controlled by
the AUX_SEL pin function.
Page 47
DisplayPort (DP)
HDMI
DP2_LANE0+
TMDS2_DATA2+
DP2_LANE0-
TMDS2_DATA2-
DP2_LANE1+
TMDS2_DATA1+
DP2_LANE1-
TMDS2_DATA1-
DP2_LANE2+
TMDS2_DATA0+
DP2_LANE2-
TMDS2_DATA0-
DP2_LANE3+
TMDS2_CLK+
DP2_LANE3-
TMDS2_CLK-
DP2_HPD
HDMI2_HPD
DP2_AUX+
HMDI2_CTRLCLK
DP2_AUX-
HMDI2_CTRLDATA
DDI2_DDC_AUX_SEL
DDI2_DDC_AUX_SEL
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PICMG COM.0 R3.0
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