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4 System BIOS

 

 

 

Parameter

Description

Option

 

 

 

Base I/O address Base I/O address and IRQ setting for the

selected serial port

3F8/IRQ4

2F8/IRQ3

3E8/IRQ4

2E8/IRQ3

Parallel Port

When enabled allows you to configure

Enabled

 

the parallel port settings.

Disabled

Mode Sets the operation mode for the parallel port.

When set to Bi-Directional, allows normal speed operation in a two way mode.

When set to EPP (Enhanced Parallel Port), allows bi-directional parallel port operation at maximum speed.

When set to ECP (Extended Capabilities Port), allows the parallel port to operate in a bi-directional mode and at a speed higher than the maximum data transfer rate.

Output only

Bi-Directional

EPP

ECP

Base I/O

Base I/O address of the parallel port

378

Address

 

278

 

 

 

Interrupt

IRQ setting of the parallel port

IRQ5

 

 

IRQ7

 

 

 

PS/2 Mouse

Enable this parameter if you intend to

Enabled

 

use a mouse or trackball with a PS/2

Disabled

 

interface.

 

 

 

 

USB Controller

Enables or disables the onboard USB

Enabled

 

controller.

Disabled

 

 

 

USB 2.0

Enables or disables the onboard USB

Enabled

Controller

2.0 controller.

Disabled

 

 

 

Legacy USB

Enables or disables support for legacy

Enabled

Support

USB devices.

Disabled

 

 

 

Route Port 80h

Select which bus to set the route port

PCI

Cycles to

80h cycles on.

LPC

 

 

 

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Image 92
Acer G540 Series manual 3F8/IRQ4, Output only, 378