BIOS Configuration
Integrated Peripherals
53
Onboard Serial Port 1 : This option is used to assign the I/O
address and address and interrupt request (IRQ) for onboard serial
port 1 (COM1).
Onboard Serial Port 2 : This option is used to assign the I/O
address and address and interrupt request (IRQ) for onboard serial
port 2 (COM2).
UART Mode Select : This field is available if the Onboard Serial
Port 2 field is set to any option but Disabled. UART Mode Select
enables you to select the infrared communication proto col-Normal
(default), IrDA, or ASKIR. IrDA is an infrared communication
protocol with a maximum baud rate up to 115.2K bps. ASKIR is
Sharp’s infrared communication protocol with a maximum baud rate
up to 57.6K bps.
RxD , TxD Active : Define the voltage level for Infrared module
RxD(receive) mode and TxD(transmit) mode. This setting has to
match the requirements of the infrared module used in the system.
The options are:
Hi, Lo (default)
Lo, Hi
Lo, Lo
Hi, Hi
IR Transmission Delay : When set to “Enabled”(default), utilizes
the capability of the mainboard to allow faster infrared transmission
rates. The options are “Enabled” and “Disabled”
UR2 Duplex Mode : This field is available when UART 2 Mode
Selects is set to either ASKIR or IrDA. This item enables you to
determine the infrared (IR) function of the onboard infrared chip.
The option are “Full” and “Halt” (default).Full-duplex means that
you can transmit and send information simultaneously. Half-duplex
is the transmission of data in both directions, but only one direction
at a time.
