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VISION
UDOO VISION User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by M.B. Copyright © 2021 SECO S.p.A
30
3.3.5
+ Connector
On the UDOO VISION board, the Digital Display Interfaces #0 is
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 miniDP connector, type ADAM-TECH p/n MDPC-S-
RA-KT-TR 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 DP0_CAD signal available on pin 4.
When a DP cable is connected, then the DP0_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 DP0_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:
DP/DP0_LANE0-: Display Port differential pair #0.
DP/DP0_LANE1-: Display Port differential pair #1.
DP/DP0_LANE2-: Display Port differential pair #2.
DP/DP0_LANE3-: Display Port differential pair #3.
DP0_HPD: Hot Plug Detect Input signal.
HDMI0_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.
+ Connector- CN21
Pin Signal
Pin Signal
1
GND
2
DP0_HPD
3
DP
4
DP0_CAD
5
DP0_LANE0-
6
DP0_CEC
7
GND
8
GND
9
DP
10
DP
11
DP0_LANE1-
12
DP0_LANE3-
13
GND
14
GND
15
DP
16
HDMI0_CTRL_CLK /
17
DP0_LANE2-
18
HDMI0_CTRL_DAT / DP0_AUX-
19
GND
20
+3.3V_RUN