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AcerAltos 19000 User’s Guide
5-20
Operation Mode
This item allows you to set the operation mode of the parallel port. Table 5-5 lists
the different operation modes. The default setting is EPP.
Table 5-5 Parallel Port Operation Mode Settings
Setting Function
Standard Parallel Port (SPP) Allows normal speed one-way
operation
Standard and Bidirectional Allows normal speed operation in
a two-way mode
Enhanced Parallel Port (EPP) Allows bidirectional parallel port
operation at maximum speed
Extended Capabilities Port
(ECP)
Allows parallel port to operate in
bidirectional mode and at a speed
higher than the maximum data
transfer rate
ECP DMA Channel
This item becomes active only if you select Extended Capabilities Port (ECP) for
the operation mode parameter. It allows you to select DMA channel 1 or DMA
channel 3 depending on the available system resource.
5.4.3 Onboard PS/2 Mouse (IRQ12)
This parameter enables or disables the onboard PS/2 mouse. When set to
Enabled, it allows you to use the onboard PS/2 mouse assigned with IRQ12.
When set to Disabled, it deactivates the mouse and frees IRQ12 for the use of
other devices. The default setting is Enabled.