Chapter 3
31
use
Full-Duplex
if possible.
Consult your IR peripheral's manual to determine if it supports
Full-Duplex
transmission. The IR peripheral must support
Full-Duplex
for this option to work.
Use IR Pins
Consult your IR peripheral documentation to select the correct setting of the TxD and
RxD signals. This field is only configurable if
“
UART Mode Select
”
is set to
“
ASKIR
”
or
“
IrDA
”
.
Onboard Parallel Port
This feature allows users to select the I/O address and IRQ for the onboard parallel
port.
Auto
is recommended. Nevertheless, you can manually choose another I/O port
or IRQ if a certain I/O port or IRQ is needed.
Disabling
this feature can free up the
I/O port and IRQ resources for other devices.
Parallel Port Mode
This feature allows users to select the transfer protocol for the parallel port.
l
Normal
(
SPP
) stands for the Standard Parallel Port, which is the original transfer
protocol for the parallel port. Therefore, it works fine with all the parallel port
devices.
l
ECP
(
Extended Capabilities Port
) is a transfer mode that uses the DMA
protocol to reach data transfer rate of up to 2MB/s and provides symmetric
bidirectional communication.
l
EPP (Enhanced Parallel Port)
is also referred to as IEEE 1284. It uses the
existing parallel port signal to reach data transfer rate of up to 2MB/s and
provides asymmetric communication bidirectional communication.
Some parallel port devices designate certain transfer protocol. Please refer to the
documentation that comes with them. If users are not sure what transfer protocol shall
be selected, they can use
ECP+EPP
so that the BIOS will automatically determine
the transfer mode suitable for the device.
EPP Mode Select
Select EPP port type 1.7 or 1.9.
ECP Mode Use DMA
If the ECP or ECP+EPP mode in the above feature is selected, this feature will
become selectable to enable users to choose the DMA channel 1 or 3.
Game Port Address
Game Port I/O address.
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