Chapter 4: BIOS Setup
87
Serial Port B
Disabled
Enabled
Auto
OS Controlled
Auto forces the BIOS to configure the port.
OS Controlled is shown when the operat-
ing system controls the port.
Mode
Normal
IrDA
ASK-IR
Selects the mode for COM port B.
Base I/O Address
3F8
2F8
3E8
2E8
Selects the base I/O address for COM port
B.
Interrupt
IRQ 4
IRQ 3
Selects the interrupt for COM port B.
Parallel Port
Disabled
Enabled
Auto
OS Controlled
Auto forces the BIOS to configure the port.
OS Controlled is shown when the operat-
ing system controls the port.
Mode
ECP
Output only
Bidirectional
EPP
Selects the mode for the parallel port.
Base I/O Address
378
278
Selects the base I/O address for the paral-
lel port.
Interrupt
IRQ 5
IRQ 7
Selects the interrupt for the parallel port.
DMA channel
DMA 1
DMA 3
Selects the DMA channel for the parallel
port.
Floppy disk control-
ler
Disabled
Enabled
Enables the onboard diskette controller.
Base I/O Address
Primary
Secondary
Sets the base I/O address for the diskette
controller.
PS/2 Mouse
Auto
Disabled
Enabled
Enables or disables the onboard mouse.
Disabling the mouse frees IRQ 12. If this
feature is set to Auto or Enabled, the
operating system determines whether to
enable or disable the mouse.
I/O Device Configuration Submenu (Continued)
Field
Options
Description
9250R.book Page 87 Friday, April 9, 1999 9:44 AM
Summary of Contents for ALR 9250R
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