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Chapter 1
Serial Port Connector: COM A
The mainboard offers one 9-pin male DIN connector as serial port COM
A. The port is a 16550A high speed communication port that sends/receives
16 bytes FIFOs. You can attach a serial mouse or other serial devices directly
to it.
Pin Definition
1
2
3
4
5
6
7
8
9
9-Pin Male DIN Connector
PIN
SIGNAL
DESCRIPTION
1
DCD
Data Carry Detect
2
SIN
Serial In or Receive Data
3
SOUT
Serial Out or Transmit Data
4
DTR
Data Terminal Ready)
5
GND
Ground
6
DSR
Data Set Ready
7
RTS
Request To Send
8
CTS
Clear To Send
9
Rl
Ring indicate
VGA DB 15 Pin Connector
One DB 15-pin VGA connector is supplied for connection to a VGA
monitor.
Pin Definition
DB 15-Pin Female Connector
Analog Video Display Connector (DB-15S)
PIN
SIGNAL DESCRIPTION
1
Red
2
Green
3
Blue
4
Not used
5
Ground
6
Ground
7
Ground
8
Ground
9
Power
10
Ground
11
Not used
12
SDA
13
Horizontal Sync
14
Vertical Sync
15
SCL
2-10
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