Onboard Fdc Controller; Onboard Parallel Port - Acer Aspire E650 Service Manual

Hide thumbs Also See for Aspire E650:
Table of Contents

Advertisement

Onboard FDC Controller

If your system has a floppy disk controller (FDC) installed on the system board and you want to use
it, you can select Enabled. If you install an add-in FDC or the system has no floppy drive, select
Disabled in this field.
Onboard Serial Port 1
This option is used to assign the I/O address and interrupt request (IRQ) for onboard serial port 1
(COM1).
UART 2 Mode Controller
This item allows users to enable or disable the UART2 Mode Controller.
UART 2 Select
This item is available if the Onboard Serial Port 2 is set for any option but Disabled. UART Mode
Select enables you to select the infrared communication, protocol-Normal (default), IrDA or ASKIR.
UR2 Dulex Mode
This item is available when UART 2 Mode is set for either ASKIR or IrDA. This item enables you to
determine the infrared function of the onboard infrared chip. The options are Full (default) and Half.
Full-duplex means that you can transmit and send information simultaneously. Half-duplex is the
transmission of data in both directions, but only one direction at a time.

Onboard Parallel Port

This option is used to assign the I/O address and interrupt request (IRQ) for the onboard parallel
port.
Parallel Port Mode
This item enables you to set the data transfer protocol for your parallel port. There are four options:
SPP (Standard Parallel Port), EPP (Enhanced Parallel Port), ECP (Extended Capabilities Port),
and ECP + EPP. SPP allows data output only. ECP and EPP are bi-directional modes, allowing
both data input and output. ECP and EPP modes are only supported with EPP- and ECP-aware
peripherals.
ECP Mode Use DMA
When the onboard parallel port is set for ECP mode, the parallel port can use DMA3 or DMA1.
38
Chapter 2

Hide quick links:

Advertisement

Table of Contents
loading

Table of Contents