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CHAPTER 4
CHAPTER 4
CHAPTER 4
CHAPTER 4
CHAPTER 4
Onboard Serial Port A/Onboard Serial Port B
Choose 3F8, for the BIOS to automatically detect the device.
If the ISA add-on card has
COM2
COM1
(I/O:3F8H)
(I/O:3F8H)
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Note: If the onboard serial port interrupt and ISA add-on card interrupt are in
conflict, the serial port will not work properly. Please disable one of the
devices.
Serial PortB Mode
Choose Normal, IrDA, or ASK IR, to select the serial port B mode.
When IrDA or ASK IR is selected, the IR will use the serial port B mode as
its address port. Choose Normal to disable IR.
IR Duplex Mode
IR Protocol
COM4
COM3
(I/O:2E8H)
(I/O:3E8H)
DISABLED
X
X
COM3
COM1
X
COM2
X
COM1
X
COM4
X
COM3
COM2
COM1
X
X
COM1
X
X
COM2
X
X
COM1
X
COM1
X
COM1
This option shows the IR duplex mode.
This option shows the IR protocol of IrDa/
Ask IR.
4-26
®
AMI
AMI
BIOS USER'S GUIDE
BIOS USER'S GUIDE
AMI
AMI
AMI
BIOS USER'S GUIDE
BIOS USER'S GUIDE
BIOS USER'S GUIDE
Onboard Serial port to be set at
IRQ
PORT1
ASSIGNED
X
4
4
3
4
3
4
3
4
4
3
4
4
4
IRQ
PORT2
ASSIGNED
DISABLED X
COM4
3
COM2
3
COM3
4
COM4
3
DISABLED X
DISABLED X
DISABLED X
DISABLED X
COM2
3
COM3
4
COM3
4
COM2
3
COM2
3
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