Motorola Mobile Workstation 520 Application Developer's Manual page 26

Table 10
Channel Map
Channel Source
DMA 0 Free (can be used by PCI devices)
DMA 1 Parallel Port (ECP mode)
DMA 2 Free (can be used by PCI devices)
DMA 3 Free (can be used by PCI devices)
DMA 4 Direct memory access controller
DMA 5 Free (can be used by PCI devices)
DMA 6 Free (can be used by PCI devices)
DMA 7 Free (can be used by PCI devices)
PC Configuration 21