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I/O Device Configuration Submenu
Table 14.
I/O Device Configuration Submenu
Feature
Serial Port A
Base I/O Address
Interrupt
Serial Port B
Mode
Base I/O Address
Interrupt
Parallel Port
Mode
Base I/O Address
Interrupt
DMA channel
Floppy disk controller
Base I/O Address
PS/2 Mouse
Choices
Description
Disabled
Enabled
Auto
Auto forces BIOS to configure the port.
OS Controlled
OS Controlled displays when OS controls the port.
3F8
Selects the base I/O address for COM port A.
2F8
3E8
2E8
IRQ 4
Selects the IRQ for COM port A.
IRQ 3
Disabled
Enabled
Auto
Auto forces BIOS to configure the port.
OS Controlled
OS Controlled displays when OS controls the port.
Normal
Selects mode for COM port B.
†
IrDA
ASK-IR
3F8
Selects the base I/O address for COM port B.
2F8
3E8
2E8
IRQ 4
Selects the interrupt for COM port B.
IRQ 3
Disabled
Enabled
Auto
Auto forces BIOS to configure the port.
OS Controlled
OS Controlled displays when OS controls the port.
ECP
Selects mode for parallel port.
Output only
Bidirectional
EPP
Selects the base I/O address for parallel port.
378
278
IRQ 5
Selects the interrupt for parallel port.
IRQ 7
DMA 1
Selects the DMA channel for parallel port.
DMA 3
Disabled
Enables onboard diskette controller.
Enabled
Primary
Sets the base I/O address for the diskette controller.
Secondary
Enables or disables onboard mouse. Disabling the mouse
Auto
Disabled
frees up IRQ 12. If this feature is enabled, the OS can
Enabled
determine whether to enable or disable the mouse.
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