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Appendix C: BIOS Operation
38
ETX-P3/C3 User’s Guide
14.4.6.
I/O Device Configuration Submenu
Feature
Option
Description
Local bus IDE adapter
Disabled
Primary
Secondary
Both
Enables onboard PCI IDE device.
*Onboard FDC
Disabled
Enabled
Enables onboard FDC controller.
External FDC
Disabled
Enabled
Auto
Enables FDC controller on the backplane.
Base I/O address
Primary
Secondary
Selects base address of the FDC controller. (Primary =
3F0h, Secondary = 370)
Serial Port A
Serial Port B
Disabled
Enabled
Auto
Disabled turns off port.
Enabled requires end user to enter the base I/O address
and the IRQ.
Auto makes the BIOS configure the port.
OS Controlled lets the PNP OS configure the port after
bootup.
Mode
Normal
IrDA
ASK-IR
Sets mode of Serial Port B.
Serial Port C
Serial Port D
Disabled
Enabled
Auto
Disabled turns off port.
Enabled requires end user to enter base I/O address and
IRQ.
Auto makes BIOS configure the port.
Mode
Normal
IrDA
ASK-IR
Sets mode for Serial Port D.
IrDA Pins
Standard
Alternate
Selects which pins of the SMC669 to use for the IrDA
interface.
Base I/O address
3F8h, 2F8h,
3E8h, 2E8h
Select I/O base of port.
IRQ (Port A and B)
IRQ 3, IRQ 4
Select IRQ of Port A and B.
IRQ (Port C and D)
IRQ 10, IRQ 11
Select IRQ of Port C and D.
*Onboard LPT
Disabled
Enabled
Auto
Disabled turns off the port.
Enabled requires end user to enter base I/O address and
IRQ.
Auto makes BIOS configure port.
*Mode
Output only
Bi-directional
ECP
EPP
Sets mode for parallel port.
*Base I/O address
378h
, 278h,
3BCh
Select I/O base of port.
*IRQ
IRQ 5,
IRQ 7
Select IRQ of parallel port.
*DMA
DMA1,
DMA3
Select DMA channel of port if in ECP mode.
External LPT
Disabled
Enabled
Disabled turns off the port.
Enabled requires end user to enter the base I/O address
and the IRQ.
Mode
Output only
Bi-directional
EPP
Set the mode for the Parallel Port 2.
Note: ECP is not supported on LPT2