NCR S26, User Manual, Page: 82 / 220

System Security
4-26 Using the BIOS Setup Utility
Table 4-4. Parallel Port Settings
Setting Function
3BCh (IRQ 7) Corresponds to the parallel port with address 3BCh
378h (IRQ 7) Corresponds to the parallel port with address 378h
278h (IRQ 5) Corresponds to the parallel port with address 278h
Disabled Disables the parallel port
To deactivate the parallel port, select the Disabled option. If you install an
add-on card with a parallel port whose address conflicts with the onboard
parallel port, the system automatically disables the onboard functions.
Check the parallel port address on the add-on card and change the address to
one that does not conflict.
Operation Mode permits you to set the operation mode of the parallel port.
The table below lists the available operation modes of the parallel port.
Table 4-5. Parallel Port Operation Mode Settings
Setting Function
Standard Parallel Port (SPP) Allows normal speed one-way operation
Standard and Bidirectional Allows normal speed operation in a two-way
mode
Enhanced Parallel Port (EPP) Allows bidirectional parallel port operation at
maximum speed
Extended Capabilities Port (ECP) Allows parallel port to operate in
bidirectional mode and at a speed higher
than the maximum data transfer rate
ECP DMA Channel becomes active only if you selected Extended
Capabilities Port (ECP) as the operation mode. It permits you to select DMA
channel 1 or DMA channel 3 (as required in Microsoft Windows95™).