Parallel Port Operation Mode Settings - Acer Power 2100 User Manual

Operation Mode
This item allows you to set the operation mode of the parallel port. Table 3-1 lists the different operation modes.
Table 3-1

Parallel Port Operation Mode Settings

Setting
Standard Parallel Port (SPP)
Standard and Bidirectional
Enhanced Parallel Port (EPP)
Extended Capabilities Port
(ECP)
ECP DMA Channel
This item becomes active only if you select Extended Capabilities Port (ECP) as the operation mode. It allows
you to assign DMA channel 1 or DMA channel 3 for the ECP parallel port function (as required in Windows 95).
AcerPower 2100 (V66LT/IDB3-C) User's Guide
68
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