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I/O Address 3BC-3BE Hex
378-37A Hex (default)
278-27A Hex
Serial Ports
The 586IVX is equipped with two serial ports at locations CN5 (COM 2)
and CN6 (COM 1) of the system board. These built-in serial ports are
RS-232C asynchronous communication ports with 16C550A-compatible
UARTs that can be used with modems, serial printers, remote display
terminals, and other serial devices.
The parallel port on your system board can be set to any of the follow-
ing system I/O addresses:
Setting
SPP
(Standard Parallel Port)
ECP
(Extended Capabilities Port)
EPP
(Enhanced Parallel Port)
Function
Allows normal speed operation but in one
direction only.
Allows parallel port to operate in bidirectional
mode and at a speed higher than the maxi-
mum data transfer rate.
Allows bidirectional parallel port operation at
maximum speed.
Parallel Port
The 586IVX system board has a standard printer port (CN7) for interfac-
ing your PC to a parallel printer. It supports SPP, ECP and EPP modes.
You can set the port’s mode in the Integrated Peripherals setup of the
Award BIOS (Refer to Chapter 3).