Ecp Dma Channel - Acer Power User Manual

Table 2-1 Parallel Port Operation Mode Settings
Setting
Standard Parallel Port
(SPP)
Standard and Bi-
directional
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 98).
AcerPower Minitower (M11E/IDCATX-2) User's Guide
Function
Allows normal speed one-way operation
Allows normal speed operation in a two-way
mode
Allows bi-directional parallel port operation
at maximum speed
Allows parallel port to operate in bi-
directional mode and at a speed higher than
the maximum data transfer rate