User`s guide

Motherboard User’s Guide

UART Mode Select (Normal)

This field is available if the “Onboard Serial Port 2” is set to any option but

Disabled. UART Mode Select enables you to select the infrared communication

protocol-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.

UR2 Duplex Mode (Half)

This field is available when UART 2 Mode is set to either ASKIR or IrDA. This

item enables you to determine the infrared function of the onboard infrared chip.

The options are Full and Half (default). Full-duplex means you can transmit and

receive data simultaneously. Half-duplex is the transmission of data in either

transmitting or receiving, only one direction at a time.

RxD , TxD Active (Hi, Lo)

This feature enables you to set the IR reception/transmission polarity as High or

Low

IR Transmission Delay (Enabled)

This field enables you to set the whether the IR transmission rate will be delayed

while converting to receiving mode.

Parallel Port Mode (ECP)

Enables you to set the data transfer protocol for your parallel port. There are

four options: SPP (Standard Parallel Port), EPP (Enhanced Parallel Port), ECP

(Extended Capabilities Port), and ECP+EPP.

Onboard Parallel Port (378/IRQ7)

This option is used to assign the I/O address and interrupt request (IRQ) for the

onboard parallel port.

Use IR Pins (IR-Rx2Tx2)

Please consult your IR peripheral documentation to select the correct setting of

the TxD and RxD signals.

ECP Mode Use DMA (3)

When the onboard parallel port is set tp ECP mode, the parallel port can use

DMA3 or DMA1.

Power On After Power Fail (Off)

This item enables your computer to automatically restart or return to its last

operating status after power returns from a power failure.

SPP allows data output only. Extended Capabilities Port (ECP) and Enhanced

Parallel Port (EPP) are bi-directional modes, allowing both data input and

output. ECP and EPP modes are only supported with EPP- and ECP-aware

peripherals.

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