Chapter 2 AMIBIOS Setup
67
Peripheral Setup,
Continued
Serial Port2 FIFO
The settings are
Disabled
or
Enabled.
This option appears only if the
Serial
Port2 Address
option is not set to
Disabled.
The Optimal and Fail-Safe
default settings are
Disabled
.
Parallel Port IRQ
This option specifies the IRQ used by the parallel port. The settings are
Disabled, IRQ7,
or
IRQ5.
The Optimal and Fail-Safe default settings are
IRQ7
.
Parallel Port Address
This option specifies the address of the parallel port. The settings display
only if
Parallel Port IRQ
is set to
IRQ5
or
IRQ7.
The settings are
Disabled,
378h,
or
278h.
Parallel Port Mode
This option specifies the parallel port mode. The settings display only if
Parallel Port Address
is set to
278h
or
378h.
The Optimal and Fail-Safe
default settings are
ECP.
The settings are:
Setting
Description
Normal
The normal parallel port mode is used.
EPP
The parallel port can be used with devices that adhere to the
Enhanced Parallel Port (EPP) specification. EPP uses the existing
parallel port signals to provide asymmetric bidirectional data transfer
driven by the host device.
ECP
The parallel port can be used with devices that adhere to the
Extended Capabilities Port (ECP) specification. ECP uses the DMA
protocol to achieve data transfer rates up to 2.5 Megabits per second.
ECP provides symmetric bidirectional communication.
Bi-Dir
Data can be sent to and received from the parallel port.
Parallel Port DMA Channel
This option is available only if the setting for the
Parallel Port
Mode
option is
ECP.
This option sets the DMA channel used by the parallel
port. The settings are
Disabled, DMA CH 1
or
DMA CH 3
. The Optimal and
Fail-Safe settings are
Disabled
.
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