2-17
Hardware Setup
I2C Bus Connector: I2C (Optional)
The mainboard provides one I2C (also known as I
2
C) Bus connector for users
to connect to System Management Bus (SMBus) interface.
IEEE 1394 Connector: J1394_1 or F1_1394 (Optional)
The mainboard provides optional IEEE 1394 pinheaders that allow you to con-
nect optional IEEE 1394 ports.
PIN SIGNAL PIN SIGNAL
1TPA+ 2TPA-
3 Ground 4 Ground
5 TPB+ 6 TPB-
7 Cable power 8 Cable power
9 Key (no pin) 10 Ground
J1394_1 Pin Definition
F1_1394
8
2
7 1
PIN SIGNAL PIN SIGNAL
1 Power 2 GND
3 TPB- 4 TPB+
5TPA- 6TPA+
7 GND 8 Key (no pin)
F1_1394 Pin Definition
J1394_1
1 9
2
10
I2C
1
PIN SIGNAL
1 SMBDATA
2 SMBCLK
3 GND
4NC
5 5VSB
Pin Definition