American Megatrends Atlas III PCI User Manual page 66

Peripheral Setup,
Continued
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
The normal parallel port mode is used.
Normal
Use this setting to support bidirectional transfers on the
Bi-Dir
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 1 or 3. The Optimal and Fail-Safe default
settings are 3.
60 Atlas PCI-III PCI Pentium ISA Motherboard User's Guide
Description