Aaeon SBC-670S Manual page 58

This option enables the parallel port on the CPU board and
specifies the parallel port base I/O port address. The settings are
Auto, Disabled, 378h, 278h, 3BCh.
IRQ7 is used for the Parallel Port(LPT 1). The IRQ can be
changed to IRQ5, or auto-selected(Auto) .
This option specifies the parallel port mode. ECP and EPP are both
bidirectional data transfer sechemes that adhere to the IEEE P1284
specification. The settings are:
Setting
Normal
Bi-Dir
EPP
ECP
This option is only available if the setting for the Parallel Port
Mode option is ECP.
The settings are Auto, None, 0, 1, 2, 3.
This option specifies the onboard IDE controller channels that will
be used. The settings are Primary, Secondary, Both, or Disabled.
Description
The normal parallel port mode is used. This is the
default setting.
Use this setting to support bidirectional transfers on
the parallel port.
The parallel port can be used with devices that
adhere to the Enhanced Parallel Port (EPP)
specification. EPP uses the exiting parallel port
signals to provide asymmetric bidirectional data
transfer driven by the host device.
The parallel port can be used with devices that
adhere to the Extended Capabilities Port (ECP)
specification. ECP uses the DMA protocol to
achieve transfer rates of approximately 2.5 Mbs.
ECP provides symmetric bidirectional communla-
tions.