BXT7059 / BXTS7059 Technical Reference
Advanced
Setup
Super IO Configuration (continued)
Serial Port 1 Configuration
This option specifies the base I/O port address and Interrupt Request address of serial port 1. The Optimal
setting is
2F8/IRQ3
. The Fail-Safe setting is
Disabled.
Option Description
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
.
2-7
Trenton
Systems
Inc.
