Creative SB0350 Programming Manual page 94

1Fh
Output
1Fh
Remarks Output digitized sound data compressed with Creative 8-bit to 2-bit ADPCM using
auto-init DMA mode.
Refer to command 1Ch on how to terminate an auto-init transfer. If the transfer is
terminated by programming the last block to single-cycle DMA mode digitized
sound I/O, the last block must be programmed with the no reference byte command,
16h.
See Also
command 16h, Creative 8-bit to 2-bit ADPCM single-cycle DMA mode digitized
sound output
command DAh, Exit 8-bit auto-init DMA mode digitized sound I/O
Available 1.xx
20h
Output
20h
Remarks Input one byte of unsigned digitized sound data from the DSP. The application is
responsible for controlling the sampling rate.
The proper transfer sequence is:
1. Send command 20h.
2. Read a byte of digitized sound data from the DSP.
3. Wait for the correct timing and repeat steps 1 and 2 until the end of recording.
See Also command 10h, 8-bit direct mode single byte digitized sound output
1.xx
Available
Creative 8-bit to 2-bit ADPCM auto-init DMA mode
digitized sound output with reference byte
2.00 2.01+ 3.xx
8-bit direct mode single byte digitized sound input
2.00 2.01+ 3.xx
DSP Commands
4.xx
4.xx
6-9