Acer Extensa 500 User Guide - Page 110

System Security, The System Security screen contains parameters that help

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BIOS Utility Parameter Parallel Port Base Address IRQ Operation Mode ECP DMA Channel Description Enables or disables the parallel port. Options: Enabled or Disabled Sets the I/O address of the parallel port. Options: 378h, 278h or 3BCh Sets the interrupt request of the parallel port. Options: 7 or 5 Sets the operation mode of the parallel port. Options: Bi-directional , ECP or Standard Sets a DMA channel for the printer to operate in ECP mode. This parameter is enabled only if Operation Mode is set to ECP. Options: 1 or 3 System Security The System Security screen contains parameters that help safeguard and protect your computer from unauthorized use. 90 User's Guide

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BIOS Utility
90
User’s Guide
System Security
The System Security screen contains parameters that help
safeguard and protect your computer from unauthorized
use.
Parallel Port
Enables or disables the parallel port.
Options:
Enabled
or Disabled
Base Address
Sets the I/O address of the parallel port.
Options:
378h
, 278h or 3BCh
IRQ
Sets the interrupt request of the parallel port.
Options:
7
or 5
Operation
Mode
Sets the operation mode of the parallel port.
Options:
Bi-directional
, ECP or Standard
ECP DMA
Channel
Sets a DMA channel for the printer to operate
in ECP mode.
This parameter is enabled only
if Operation Mode is set to ECP
.
Options:
1
or 3
Parameter
Description