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Chapter 2 WINBIOS Setup 73
Peripheral Setup, Continued
Parallel Port Address This option specifies the base I/O port address for the parallel port. The
settings are 378h, 278h, or Disabled. The Optimal default setting is 378h. The
Fail-Safe default setting is not provided.
Parallel Port Mode This option specifies the parallel port mode. ECP and EPP are both
bidirectional data transfer modes that adhere to the IEEE P1284 specifications.
The settings are:
Setting Description
Normal
The standard AT-compatible parallel port mode is used.
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.
The Optimal default setting is Normal. The Fail-Safe default setting is not
provided.
Parallel Port DMA Channel This option is only available if the setting for the Parallel Port
Mode option is Extended or ECP. This option sets the DMA channel used by
the parallel port. The settings are DMA CH 1 or DMA CH 3. The Optimal and
Fail-Safe default settings are not provided.