O introduction
2.3.3 HDMI Connector
There are three HDMI connectors, which are HDMI1, HDMI2, HDMI3 respectively, to
display the high resolution image/ video. The detailed descriptions are as below.
HDMI 2.0 (printed HDMI1) is the latest connector to provide all-digital audio/
video interface to transmit the uncompressed audio/ video signals and with
HDCP content protection. Also, its maximum resolution enables to carry 4K res-
olution at 60Hz but the actual resolutions supported depend on the monitor
being used.
HDMI 1.4 (printed HDMI2) also supports CEC (Consumer Electronic Control)
feature designed to allow the user to perform remote control functions but the
actual functions supported depend on the monitor, and maximum resolution is
4K at 30Hz.
HDMI 1.4 (printed HDMI3) supports its maximum resolution 4K at 30Hz.
Figure 2.12 HDMI connector
Table 2.5: HDMI Connector Pin Assignments
Pin Signal Name
1TMDS Data2+
2GND
3TMDS Data2–
4TMDS Data1+
5GND
6TMDS Data1–
7TMDS Data0+
8GND
9TMDS Data0–
10 TMDS Clock+
11 GND
12 TMDS Clock–
13 NC
14 NC
15 SCL
16 SDA
17 GND
18 +5 V Power
19 Detect
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