Acer Aspire T600 Service Manual page 38

Parameter
Parallel Port Address
Parallel Port Mode
ECP Mode DMA Channel
Parallel Port IRQ
Chapter 2
Description
Use this item to enable or disable the onboard
Parallel port, and to assign a port address.
Enables you to set 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.
Port (ECP) and Enhanced Parallel Port (EPP)
are bi-Extended Capabilities directional modes,
allowing both data input and output. ECP and
EPP modes are only supported with EPP and
ECP aware peripherals.
When the onboard parallel port is set to ECP
mode,the parallel port can use DMA 3 or DMA 1.
This item assigns either IRQ 5 or 7 to the parallel
port
Options
N/A
SPP
EPP
ECP
ECP+EPP
1
3
N/A
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