ROCKY-4786EV/EVG User Manual
Page 97
Parallel Port Mode [SPP]
The Parallel Port Mode selection allows you to select the mode the parallel port will
operate in.
SPP
(D
EFAULT) The parallel port will operate in the standard parallel
port (SPP) mode. This parallel port mode will work with
most parallel port devices but is slow.
EPP
The parallel port will operate in the enhanced parallel
port mode (EPP). The EPP mode supports bi-directional
communication between the system and the parallel
port device and the transmission rates between the two
are much faster than the SPP mode.
ECP
The parallel port will operate in the extended
capabilities port (ECP) mode. The ECP mode supports
bi-directional communication between the system and
the parallel port device and the transmission rates
between the two are much faster than the SPP mode.
ECP+EPP
The parallel port will be compatible with both ECP and
EPP devices
Normal
x EPP Mode Select
If the EPP mode is selected in the Parallel Port Mode configuration option, you will be
able to configure the EPP Mode Select option. The EPP parallel port mode has two
standards, EPP 1.7 and EP 1.9. This selection allows you to choose the standard the
parallel port will operate in. Please refer to the parallel device that your system will be
connected to and select the EPP mode accordingly.
EPP1.9
EPP 1.9 is selected as the EPP standard
EPP1.7
(D
EFAULT) EPP 1.7 is selected as the EPP standard
x ECP Mode Use DMA [3]
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