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3.3.4
miniDP++ Connectors
miniDP++ Connector # 1- CN5
Pin
Signal
1
GND
3
DP1_LANE0+
5
DP1_LANE0-
7
GND
9
DP1_LANE1+
11
DP1_LANE1-
13
GND
15
DP1_LANE2+
17
DP1_LANE2-
19
GND
miniDP++ Connector #2- CN4
Pin
Signal
1
GND
3
DP2_LANE0+
5
DP2_LANE0-
7
GND
9
DP2_LANE1+
11
DP2_LANE1-
13
GND
15
DP2_LANE2+
17
DP2_LANE2-
19
GND
X86
UDOO X86 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: S.B. - Reviewed by M.B. Copyright © 2017 SECO S.r.l.
Pin
Signal
2
DP1_HPD
4
CAD
6
HDMI1_CEC
8
GND
10
DP1_LANE3+
12
DP1_LANE3-
14
GND
16
HDMI1_CTRL_CLK / DP1_AUX+
18
HDMI1_CTRL_DAT / DP1_AUX-
20
+3.3V_S
Pin
Signal
2
DP_HPD
4
CAD
6
HDMI2_CEC
8
GND
10
DP2_LANE3+
12
DP2_LANE3-
14
GND
16
HDMI2_CTRL_CLK / DP2_AUX+
18
HDMI2_CTRL_DAT / DP2_AUX-
20
+3.3V_S
On the UDOO x86 board, the Digital Display Interfaces #1 and #2 are used to
implement a multimode Display Port (DP++)interface, i.e. it can be used to support
DP displays directly and, through an external adapter, also HDMI or
DVI displays.
Such an interface is available on as many miniDP connectors, type
Pulse Electronics p/n E9320-001-01 or equivalent, with the pinout
shown in the table on the left.
The configuration of this interface in DP or HDMI/DVI mode is automatic, and it is
driven by the CAD signals available on pin 4.
When a DP cable is connected, then the CAD signal is not connected; this interface
will recognize it, and on pins 16/18 there will be the Display Port Auxiliary channel
signals. Instead, when a DP-to-HDMI adapter is mounted, it will drive opportunely
the CAD signal, which will make available HDMI_CTRL_CLK and HDMI_CTRL_DAT
signals on the same pins.
Further signals involved in DP management are the following:
DPx_LANE0+/DPx_LANE0-: Display Port differential pair #0.
DPx_LANE1+/DPx_LANE1-: Display Port differential pair #1.
DPx_LANE2+/DPx_LANE2-: Display Port differential pair #2.
DPx_LANE3+/DPx_LANE3-: Display Port differential pair #3.
DPx_HPD: Hot Plug Detect Input signal.
HDMIx_CEC: HDMI Consumer Electronics Control (CEC) Line. This signal is used
only for HDMI compatibility when a HDMI adapter is connected to the DP connector.
27
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