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S-DSP: Difference between revisions

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[[File:s-dsp schematic.png|thumb|S-DSP in region D4 of the [[jwdonal schematic]]]]
[[File:s-dsp schematic.png|thumb|S-DSP in region D4 of the [[jwdonal schematic]]]]


The '''S-DSP''' is the digital signal processor.  It produces audio for the [[DAC]] and is controlled by the [[SPC700]].  It is clocked by [[X2]].
The '''S-DSP''' is the digital signal processor.  It produces audio for the [[DAC]] and is controlled by the [[S-SMP]].  It is clocked by [[X2]].


It has 128 registers (DSPRAM) that can be manipulated by the SPC, some of which serve no hard-wired purpose and can be used as general-purpose RAM.
It has 128 registers (DSPRAM) that can be manipulated by the SPC, some of which serve no hard-wired purpose and can be used as general-purpose RAM.

Revision as of 04:38, 29 November 2023

S-DSP in region D4 of the jwdonal schematic

The S-DSP is the digital signal processor. It produces audio for the DAC and is controlled by the S-SMP. It is clocked by X2.

It has 128 registers (DSPRAM) that can be manipulated by the SPC, some of which serve no hard-wired purpose and can be used as general-purpose RAM.

The highest sound frequency that the S-DSP can produce is 16kHz, because of the 32kHz rate that sample-points are output. [1]

References

  1. https://problemkaputt.de/fullsnes.htm#snesapudspbrrpitch