Audio Interface Dma Channels - NEC PowerMate V486 Series Manual

Audio Interface DMA Channels

The sound board audio interface supports both low and high
DMA channels for direct data transfers to system memory.
Jumpers DAS0 and DAS1 set low DMA channels 0, 1
(factory default setting), and 3 for 8-bit data transfers.
Jumpers DBS0 and DBS1 set high DMA channels 5
(factory default setting), 6, and 7 for 16-bit data transfers.
D-6 Sound Board Jumper Settings
Low DMA channel settings