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7
GGND
8
BGND
9
KEY-Key
10
SGND
11
ID0
12
ID1or SDA
13
HSYNC
14
VSYNC
15
ID3or SCL
3.4.4 HDMI
The motherboard uses the most common HDMI Type A interface, 14mm wide and 4.5mm high.
HDMI interface is a digital video/audio interface technology, is suitable for image transmission of a
special digital interface, which can transmit audio and audio signals at the same time, the maximum
data transmission speed of 5Gbps, defined as follows;
Pins
Signal
Pins
Signal
1
TMDS Data2+
2
TMDS Data2 Shield
3
TMDS Data2-
4
TMDS Data1+
5
TMDS Data1 Shield
6
TMDS Data1-
7
TMDS Data0+
8
TMDS Data0 Shield
9
TMDS Data0-
10
TMDS Clock+
11
TMDS Clock Shield
12
TMDS Clock-
13
CEC
14
Reserved(NC on device)
15
SCL
16
SDA
17
DDC/CEC Ground
18
+5V
19
Hot Plug Detect