Specifications

3-8 Digitized Sound I/O Programming
DSP Digitized Sound I/O Capability
Because the DSP is periodically enhanced, the capabilities of the DSP particularly
with regard to the sampling rates and DMA operation modes, have varied among the
different versions.
The table below lists the DMA operation modes supported by different versions of
the DSP:
DSP Version
DMA Operation Mode 1.xx 2.00 2.01+ 3.xx 4.xx
8-bit Mono PCM Single-cycle
99999
8-bit Mono PCM Auto-initialize
9999
8-bit Mono ADPCM Single-cycle
99999
8-bit Mono ADPCM Auto-initialize
9999
8-bit Mono PCM High-Speed Single-cycle
99
8-bit Mono PCM High-Speed Auto-initialize
99
8-bit Stereo PCM High-Speed Single-cycle
9
8-bit Stereo PCM High-Speed Auto-initialize
9
8-bit/16-bit Mono PCM Single-cycle
9
8-bit/16-bit Mono PCM Auto-initialize
9
8-bit/16-bit Stereo PCM Single-cycle
9
8-bit/16-bit Stereo PCM Auto-initialize
9
Table 3-1: DMA Operation Modes Supported