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Introduction
• Two Startech SPP/ECP/EPP/parallel ports
• Bi-directional port capability
• 16-byte FIFO for ECP modes
• 8-bit DMA channel
A Note on Parallel Port Settings
Parallel port settings are defined as follows:
Output OnlyOutput Only
Output OnlyOutput Only
Output Only
. .
. .
. This setting defines the parallel port as a
standard uni-directional I/O only port for use with a printer.
SPP (standard)SPP (standard)
SPP (standard)SPP (standard)
SPP (standard). This setting defines the parallel port as a
standard bi-directional port for use with a printer.
EPP (enhanced parallel port)EPP (enhanced parallel port)
EPP (enhanced parallel port)EPP (enhanced parallel port)
EPP (enhanced parallel port). This setting defines the
parallel port as an 8-bit bi-directional port for use with hard
drives, tape backup systems, and other 8-bit bi-directional
devices.
ECP (extended capabilities port)ECP (extended capabilities port)
ECP (extended capabilities port)ECP (extended capabilities port)
ECP (extended capabilities port). This settings defines the
parallel port as a high-performance 8-bit bi-directional port
for use with hard drives, tape backup systems, high-
performance printers, and CD-ROM drives. This mode also
uses DMA to increase performance and reduce system
overhead.
9361.p65 2/11/99, 11:02 AM13