American Megatrends MAN-758 Peripheral Setup, Continued, Normal, bidirectional communication

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	ThestandardAT-compatibleparallelportmodeisused.
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.

Chapter 2 WINBIOS Setup 73