Specifications

DSP Commands 6-3
The commands below are available on DSP versions 2.00, 2.01+, 3.xx and 4.xx.
Category Cmd# Description
8-bit auto-init DMA mode 1Ch Output
digitized sound I/O 2Ch Input
7Dh 8-bit to 4-bit ADPCM output with ref. byte
7Fh 8-bit to 3-bit ADPCM output with ref. byte
1Fh 8-bit to 2-bit ADPCM output with ref. byte
DAh Exit 8-bit auto-init DMA-mode
Block transfer size 48h Set block transfer size
UART mode MIDI I/O 34h Polling mode
35h Interrupt mode
36h Polling with time stamping
37h Interrupt with time stamping
Digitized sound output speaker
control
D8h Get speaker status
The commands below are available on DSP versions 2.01+ and 3.xx.
Category Cmd# Description
High-speed mode digitized 90h 8-bit auto-init DMA mode output
sound I/O 98h 8-bit auto-init DMA mode input
91h 8-bit single-cycle DMA mode output
99h 8-bit single-cycle DMA mode input