ECS G33T-M2 User Manual page 28

22
1394A1: IEEE 1394A header (Optional)
Connect this header to any device with IEEE 1394a interface.
Pin
Pin
1
3
5
7
9
COM2: Onboard serial port connector (optional)
Connect a serial port extension bracket to this header to add a second serial port to your
system.
Pin
1
2
3
4
5
6
7
8
9
10
SPI_ROM: SPI ROM header (optional)
This 8 Mb ROM contains the programmable BIOS program.
Pin
1
2
3
4
5
6
7
8
Signal Name
Pin
Signal Name
2
TPA+
4
GND
6
TPB+
8
Cable-Power
10
Key Pin
Signal Name Function
DCDB Data Carrier Detect
SINB Serial Input
SOUTB UART B Serial Output
DTRB UART B Data Terminal Ready
GND Ground
DSRB Data Set Ready
RTSB RART B Request to Send
CTSB Clear to Send
RI Ring Indicator
Key No pin
Signal Name
CHIP SELECT Select chip
VCC VCC
DATA OUTPUT data output
HOLD hold
WRITE PROTECT BIOS write protect
CLOCK clock
CND CND
DATA INPUT data input
Installing the Motherboard
Signal Name
Function
TPA-
GND
TPB-
Cable-Power
GND
Function