User manual

APC-3580 User Manual
55
Use the Parallel Port Mode option to select the mode the parallel port operates in.
Normal
DEFAULT
The normal parallel port mode is the
standard mode
for parallel port operation.
Bi-directional
Parallel port outputs are 8-bits long.
Inputs are
accomplished by reading 4 of the 8 bits
on the status
register.
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.
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
Normal mode.
ECP & EPP
The parallel port operates in the
extended
capabilities port (ECP) mode. The ECP
mode
supports bi-directional communication
between the