Hardware Setup

SMBus Connector: SM_BUS

The mainboard provides one I2C (also known as I2C) Bus connector for users to connect System Management Bus (SMBus) interface.

Pin Definition

SM_BUS

PIN

SIGNAL

 

 

 

1

 

 

1

GND

 

 

 

 

 

 

2

VCC5V

 

 

 

3

SMBus_Clock

6

 

 

4

SMBus_Data

 

 

 

5

+12V

 

 

 

 

 

 

6

PowerButton

Serial Port Connector: COM0

The mainboard provides one 9-pin header as serial port COM0. 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

COM0

PIN

SIGNAL

DESCRIPTION

1

DCD

Data Carry Detect

1

2

2

SIN

Serial In or Receive Data

3

SOUT

Serial Out or Transmit Data

 

 

 

 

4

DTR

Data Terminal Ready

 

 

5

GND

Ground

9

 

6

DSR

Data SetReady

 

 

7

RTS

Request To Send

 

 

8

CTS

Clear To Send

 

 

9

RI

Ring Indicate

2-15

Page 27
Image 27
MSI Keeper 945GM manual SMBus Connector Smbus, Serial Port Connector COM0