System Setup Options: Dell Latitude LS Portable Computers User's Guide

Serial port: Base

Appears only if Serial port A is set to Enabled. Allows you to configure

I/O Address

the base address and interrupt request (IRQ). Options are:

 

3F8h IRQ4

 

2F8h IRQ3

 

3E8h IRQ4

 

2E8h IRQ3

Parallel port

Controls whether the computer's parallel port acts as an advanced

 

technology (AT)-compatible unidirectional, a PS/2-compatible

 

bidirectional, an Enhanced Parallel Port (EPP)-compatible, or an

 

Extended Capabilities Port (ECP)-compatible port. Dell recommends that

 

you retain Auto (the default) to allow the operating system or the BIOS

 

to configure the port automatically. Other options are Disabled, which

 

disables the parallel port, and Enabled.

 

To enter a custom configuration, set Parallel Port to Enabled and then

 

configure Mode, Base I/O Address, and DMA channel.

Parallel port:

Appears only if Parallel port is set to Enabled or Auto. Lets you specify

Mode

the operating mode of the parallel port. Options are:

 

Output Only (compatible mode)

 

Bi-directional (extended mode)

 

EPP

 

ECP

 

If you select ECP mode, you can also select the DMA Channel.

Parallel port:

Appears only if Parallel port is set to Enabled. Lets you configure the

Base I/O Address

base address and IRQ. Options are:

 

378h IRQ7

 

3BCh IRQ7

 

378h IRQ5

 

278h IRQ5

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