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BIOS Setup Information
WEB-6681 SERIES
【
R1.0
】
User’s Manual
4-22
There are four optional items Parallel Port Mode, EPP Version, Parallel Port
IRQ, and Parallel Port DMA Channel used to control on-board parallel port
interface while user select I/O base address manually. The following lists are
available options of on-board parallel port :
Auto
user can not control all of LPT port I/O resources
Disabled
on-board parallel port function is ineffective and N/A
378h
locate IRQ7 for this default I/O address
278h
assign this I/O address to LPT1
3BCh
assign this I/O address to LPT1
◎
Parallel Port Mode :
This option specifies the parallel port mode. ECP and EPP are both
bi-directional data transfer schemes that adhere to the IEEE P1284 specifications.
This Parallel Port Mode includes four options “Normal”, “Bi-Dir”, “EPP”, and
“ECP”.
Setting Description
Normal Uni-direction operation at normal speed
Bi-Dir Bi-direction operation at normal speed
EPP
The parallel port can be used with devices that adhere to the
Enhanced Parallel Port (EPP) specification. EPP uses the existing
parallel port signals to provide asymmetric bi-directional data
transfer driven by the host device.
ECP
The parallel port can be used with devices that adhere to the
Extended Capabilities Port (ECP) specification. ECP uses the
DMA protocol to achieve data transfer rates up to 2.5 Megabits per
second. ECP provides symmetric bi-directional communication.
EPP Version :
This option is only valid if the Parallel Port Mode option is set to EPP. This