Onboard device configuration – Acer 505 User Manual
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Chapter 1
Onboard Device Configuration
The Onboard Device Configuration screen contains parameter settings for your hardware connection devices.
CAUTION: The parameters in this screen are for advanced users only. You do not need to change the values
in this screen because these values are already optimized.
The table below describes the parameters in this screen. Settings in boldface are the default and suggested
parameter settings.
Parameter
Description
Serial Port
Enables or disables the serial port.
Options: Enabled or Disabled
Base Address
Sets the I/O address of the serial port.
Options: 3F8h, 2F8h, 3E8h or 2E8h
IRQ
Sets the interrupt request of the serial port.
Options: 4 or 11
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: ECP, EPP, Bidirectional 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
505-1.book Page 32 Thursday, November 4, 1999 4:36 PM