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Chapter 2 37
I/O Device Configuration
The parameters in this screen are for advanced users only. You do not need to change the values in this
screen because these values are already optimized.
The I/O Device Configuration screen assigns resources to basic computer communication hardware.
NOTE: When the device is disabled, all the sub-items will be showed as [--].
The following table describes the parameters in this screen. Settings in boldface are the default and suggested
parameter settings
.
Parameter Description Options
Serial Port A Enables or disables the serial port.
The serial port is a PnP device. Enabled/Disabled
setting won’t affect the setting of the serial port in
device manager of Windows.
When enabled, you can set the base I/O address and
interrupt request (IRQ) of the serial port.
Help: [Disabled] : No configuration
[Enabled] : User configuration
[Auto] : BIOS or OS chooses configuration
Disabled
Enabled
Auto
Mode Sets speration mode of the serial port.
Only set the serial post operation mode in BIOS
Setup.
Help: Set the mode for the serial port using
COM Port
FIR
Base I/O Address Sets the I/O address of the com operation.
Help: Set the base I/O address for serial port.
3F8, 2F8, 3E8 or 2E8
PhoenixBIOS Setup Utility
Advanced
I/O Device Configuration
Item Specific Help
Serial port: [Enabled]
Mode: [FIR]
Base I/O Address: [2F8]
Interrupt: [IRQ 3]
DMA channel: [DMA 3]
Parallel port: [Enabled]
Mode: [Bi-directional]
Base I/O address: [378]
Interrupt: [IRQ7]
Configure serial port
using options:
[Disabled]
No configuration
[Enabled]
User Configuration
[Auto]
BIOS or OS chooses
configuration
(OS Cintrolled)
Displayed when Controlled
by OS
F1
Help
Select Item
F5/F6
Change Values
F9
Setup Defaults
Esc
Exit
Select Menu
Enter
Select > Sub Menu
F10
Save and Exit