American Megatrends III - Manual (Page 64)

Apollo III PCI Pentium ISA Motherboard User’s Guide 60
Peripheral Setup, Continued
Parallel Port Address This option specifies the base I/O port address of the parallel port on
the motherboard. The settings are Disabled, 378h, 278h, or 3BCh. The
Optimal default setting is 378h. The Fail-Safe default setting is Disabled.
Parallel Port Mode This option specifies the parallel port mode. The Optimal default setting is
Normal. The Fail-Safe default setting is Disabled. The settings are:
Setting Description
Normal The normal parallel port mode is used.
Bi-Dir Use this setting to support bidirectional transfers on the
parallel port.
EPP The parallel port can be used with devices that adhere to the
Enhanced Parallel Port (EPP) specification. EPP uses the
existing parallel port signals to provide asymmetric
bidirectional data transfer driven by the host device.
ECP The parallel port can be used with devices that adhere to the
Extended Capabilities Port (ECP) specification. ECP uses the
DMA protocol to achieve data transfer rates up to 2.5 Megabits
per second. ECP provides symmetric bidirectional
communication.
EPP Version This option specifies the Enhanced Parallel Port specification version number
that is used if the Parallel Port Mode option is set to EPP. This option can
only be selected if the Parallel Port Mode option is set to EPP
The settings are 1.7 or 1.9. There are no Optimal and Fail-Safe default
settings because the default setting for the Parallel Port Mode option is not
EPP.
Parallel Port DMA Channel This option is only available if the setting for the Parallel Port
Mode option is ECP. This option sets the DMA channel used by the parallel
port. The settings are (DMA Channel) 0, 1 or 3. The Optimal and Fail-Safe
default settings are 3.