Serial Port Connector: Com Port; Usb Connectors - MSI 945G Neo User Manual

Serial Port Connector: COM Port

The mainboard offers one 9-pin male DIN connector COM Port. It's a 16550A
high speed communication port that send/receive/ 16 bytes FIFOs. You can attach a
serial mouse or other serial device directly to it.
1 2 3 4 5
6 7 8 9
9-Pin Male DIN Connector
COM Port
VGA Connector
The mainboard provides a DB 15-pin female connector to connect a VGA
monitor.
5
15 11
VGA Connector
(DB 15-pin)

USB Connectors

The mainboard provides an OHCI (Open Host Controller Interface) Universal
Serial Bus root for attaching USB devices such as keyboard, mouse or other USB-
compatible devices. You can plug the USB device directly into the connector.
1 2 3 4
5 6 7 8
USB Ports
PIN
1
2
3
4
5
6
7
8
9
Pin
1
1
3
5
7
9
11
13
15
PIN SIGNAL
1 VCC
2 -Data 0
3 +Data0
4 GND
5 VCC
6 -Data 1
7 +Data 1
8 GND
Pin Definition
SIGNAL DESCRIPTION
DCD Data Carry Detect
SIN Serial In or Receive Data
SOUT Serial Out or Transmit Data
DTR Data T erminal Ready)
GND Ground
DSR Data Set Ready
RTS Request T o Send
CTS Clear To Send
RI Ring Indicate
Signal Description Pin
RED 2
BLUE 4
GND 6
GND 8
+5V 10
N/C 12
Horizontal Sync 14
SCL
USB Port Description
DESCRIPTION
+5V
Negative Data Channel 0
Positive Data Channel 0
Ground
+5V
Negative Data Channel 1
Positive Data Channel 1
Ground
Hardware Setup
Signal Description
GREEN
N/C
GND
GND
GND
SDA
Vertical Sync
2-11