Motorola ml900 Manuel D’Utilisation

 

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.