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3.3.3
HDMI connector
HDMI Connector - CN2
Pin
Signal
Pin
1
TMDS_LANE2+
3
TMDS_LANE2-
5
GND
7
TMDS_LANE0+
9
TMDS_LANE0-
11
GND
13
CEC
15
SCL
17
GND
19
HPD
resistor.
CEC: HDMI Consumer Electronics Control (CEC) Line. Bidirectional signal, electrical level +3.3V_A with a 27kΩ pull-up resistor and Schottky Diode.
HPD: Hot Plug Detect Input signal. +3.3V_S electrical level signal with 100kΩ pull-down resistor
For ESD protection, on all data and voltage lines are placed clamping diodes for voltage transient suppression.
Always use HDMI-certified cables for the connection between the board and the HDMI display; a category 2 (High-Speed) cable is recommended for higher
resolutions, category 1 cables can be used for 720p resolution.
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.
Signal
2
GND
4
TMDS_LANE1+
6
TMDS_LANE1-
8
GND
10
TMDS_CLK+
12
TMDS_CLK-
14
---
16
SDA
18
+5V
HDMI
®
The Intel
Braswell family of SoCs offer three Digital Display Interfaces, configurable to work in
HDMI/DVI/DP++ modes.
On the UDOO x86 board, the Digital Display Interface #0 is used to implement a HDMI
interface.
Therefore, on-board it is available a standard certified HDMI connector, right-angle, type A,
WIN WIN P/N WDMI-19F4L1BN5U1.
Signals involved in HDMI management are the following:
TMDS_CLK+/TMDS_CLK-: TMDS differential Clock.
TMDS_LANE0+/TMDS_LANE0-: TMDS differential pair #0
TMDS_LANE1+/TMDS_LANE1-: TMDS differential pair #1
TMDS_LANE2+/TMDS_LANE2-: TMDS differential pair #2
SDA: DDC Data line for HDMI panel. Bidirectional signal, electrical level +5V
pull-up resistor.
SCL: DDC Clock line for HDMI panel. Output signal, electrical level +5V
with a 2kΩ
HDMI
with a 2kΩ pull-up
HDMI
26
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