Onboard Ps/2 Mouse (Irq 12); Parallel Port Operation Mode Settings - Acer V55 System User Manual

This item allows you to set the operation mode of the parallel port.
Table 2-5 lists the different operation modes.
Table 2-5

Parallel Port Operation Mode Settings

Setting
Standard Parallel Port (SPP)
Standard and Bidirectional
Enhanced Parallel Port (EPP)
Extended Capabilities Port
(ECP)
This item becomes active only if you select
Port (ECP) as the operation mode. It allows you to select DMA
channel 1 or DMA channel 3 (as required in Windows95).
2.5.3

Onboard PS/2 Mouse (IRQ 12)

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.
mouse and frees IRQ12 for the use of other devices.
2-20
OPERATION MODE
Function
Allows normal speed one-way
operation
Allows normal speed operation in a
two-way mode
Allows bidirectional parallel port
operation at maximum speed
Allows parallel port to operate in
bidirectional mode and at a speed
higher than the maximum data
transfer rate
ECP DMA CHANNEL
Extended Capabilities
When set to Disabled , it deactivates the
User's Guide