Specifications
3-20 Digitized Sound I/O Programming
To stop high-speed auto-initialize DMA mode, send the reset DSP command.
At the end of data transfer:
1. Turn off the DAC speaker.
outp(wSBCBaseAddx+0xC, 0xD3)
2. Disable the interrupt used.
3. Restore the original interrupt service routine.
4. Release the allocated DMA buffer.