Motorola ML900 Operation Manual page 90

Port Address sets the I/O address and the interrupt request line
settings of the parallel port. The options are None; LPT1, 378, IRQ
7; LPT2, 278, IRQ 5;and LPT3, 3BC, IRQ 7. Default setting is LPT1,
378, IRQ 7.
Port Definition sets the operating mode for the parallel port
according to the type of the parallel device to be connected. Your
system supports EPP (Enhanced Parallel Port) and ECP (Extended
Capabilities Port) standards, which turn the standard parallel port
into a high-speed bi-directional peripheral port. The options are
Standard AT (Centronics), Bidirectional (PS-2), Enhanced Parallel
(EPP), and Extended Capabilities (ECP). Default setting is
Extended Capabilities (ECP). This item is not valid for setting if the
Port Address item is set to None.
DMA Setting For ECP Mode sets the DMA (Direct Memory
Access) channel of the ECP mode. The options are DMA 1 and DMA
3. Default setting is DMA 3. This item is not valid for setting if the
Port Definition item is not set to Extended Capabilities (ECP).
Legacy USB
This item enables or disables the system's support for the USB port in
DOS mode.
Setup Configuration Utility (SCU) 5-11