Chassis Plans ATXP-875P, Техническое описание

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ATXP-875P Technical Reference Chapter 2:BIOS Configuration
Chassis Plans 21
Serial Port1 Address
This option specifies the base I/O port address and Interrupt Request address of serial port 1. The Optimal setting is
3F8/IRQ4 . The Fail-Safe default setting is Disabled.
Disabled Set this value to prevent the serial port from accessing any system resources. When this option is set to
Disabled , the serial port physically becomes unavailable.
3F8/IRQ4 Set this value to allow the serial port to use 3F8 as its I/O port address and IRQ 4 for the interrupt
address. This is the default setting. The majority of serial port 1 or COM1 ports on computer systems
use IRQ4 and I/O Port 3F8 as the standard setting. The most common serial device connected to this
port is a mouse. If the system will not use a serial device, it is best to set this port to
Disabled .
2F8/IRQ3 Set this value to allow the serial port to use 2F8 as its I/O port address and IRQ 3 for the interrupt
address. If the system will not use a serial device, it is best to set this port to
Disabled .
3E8/IRQ4 Set this value to allow the serial port to use 3E8 as its I/O port address and IRQ 4 for the interrupt
address. If the system will not use a serial device, it is best to set this port to
Disabled .
2E8/IRQ3 Set this value to allow the serial port to use 2E8 as its I/O port address and IRQ 3 for the interrupt
address. If the system will not use a serial device, it is best to set this port to
Disabled .
Serial Port2 Address
This option specifies the base I/O port address and Interrupt Request address of serial port 2. The Optimal setting is
2F8/IRQ3 . The Fail-Safe setting is Disabled.
Disabled Set this value to prevent the serial port from accessing any system resources. When this option is set to
Disabled , the serial port physically becomes unavailable.
3F8/IRQ4 Set this value to allow the serial port to use 3F8 as its I/O port address and IRQ 4 for the interrupt
address. If the system will not use a serial device, it is best to set this port to Disabled.
2F8/IRQ3 Set this value to allow the serial port to use 2F8 as its I/O port address and IRQ 3 for the interrupt
address. This is the default setting. The majority of serial port 2 or COM2 ports on computer systems
use IRQ3 and I/O Port 2F8 as the standard setting. The most common serial device connected to this
port is an external modem. If the system will not use an external modem, set this port to
Disabled .
Note:
Most internal modems require the use of the second COM port and use 3F8 as its I/O port address and IRQ 4
for its interrupt address. This requires that the Serial Port2 Address be set to
Disabled or another base I/O port
address and Interrupt Request address.
3E8/IRQ4 Set this value to allow the serial port to use 3E8 as its I/O port address and IRQ 4 for the interrupt
address. If the system will not use a serial device, it is best to set this port to Disabled.
2E8/IRQ3 Set this value to allow the serial port to use 2E8 as its I/O port address and IRQ 3 for the interrupt
address. If the system will not use a serial device, it is best to set this port to
Disabled .
Serial Port2 Mode
This option allows installation of an Infra-red device by the Serial Port. The settings are Normal ( default ), IRDA and
ASK IR.
Infra-Red Transmission Mode
The settings are Full Duplex ( default ) or Half Duplex.
Receiver/Transmitter Polarity
Sets polarity for IR modes.