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3
BIOS Setup
3.1.4.17 Onboard Serial Port 1 and Onboard Serial Port 2
Auto
The system will automatically select an I/O address for
the onboard serial port 1 and serial port 2.
3F8/IRQ4, 2F8/IRQ3, 3E8/IRQ4, 2E8/IRQ3
Allows you to manu-
ally select an I/O address for the onboard serial port 1
and serial port 2.
Disabled
Disables the onboard serial port 1 and/or serial port 2.
3.1.4.18 UART Mode Select
This field is used to select the type of IrDA standard supported by
your IrDA device. For better transmission of data, your IrDA
peripheral device must be within a 30
o
angle and within a distance
of 1 meter.
3.1.4.19 UR2 Duplex Mode
Half
Data is completely transmitted before receiving data.
Full
Transmits and receives data simultaneously.
3.1.4.20 Onboard Parallel Port
378/IRQ7, 3BC/IRQ7, 278/IRQ5
Selects the I/O address and
IRQ for the onboard parallel port.
Disabled
Disables the onboard parallel port.
3.1.4.21 Parallel Port Mode
The options are SPP, EPP and ECP. These apply to a standard speci-
fication and will depend on the type and speed of your device. Refer
to your peripheral’s manual for the best option.
SPP
Allows normal speed operation but in one direction only.
ECP (Extended Capabilities Port)
Allows parallel port to operate in bidirectional mode and at a
speed faster than the normal mode’s data transfer rate.
EPP (Enhanced Parallel Port)
Allows bidirectional parallel port operation at maximum speed.
