IEI Integration NANO-LX v1.21 - Manual (Page 135)

NANO-LX EPIC SBC
Page 120
parallel port devices but is slow.
EPP The parallel port operates 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 operates 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 is compatible with both ECP and EPP
devices.
Normal
x EPP Mode Select [EPP1.7]
The EPP Mode Select option is only available if the Parallel Port Mode option is set to
EPP mode. Use the EPP Mode Select option to select the parallel port mode standard for
the parallel port.
EPP1.9 EPP 1.9 is selected as the EPP standard.
EPP1.7 (Default) EPP 1.7 is selected as the EPP standard.
x ECP Mode Use DMA [3]
The ECP Mode Use DMA option is only available if the Parallel Port Mode option is set
to ECP mode. Use the ECP Mode Use DMA option to specify the DMA channel the
parallel port must use in the ECP mode.
1 The parallel port uses DMA Channel 1 in ECP mode.
3 (Default) The parallel port uses DMA Channel 3 in ECP mode.