Table 2.1 Sound CPU specifications
| SOUND CPU MC 68EC000-12 12.5MHz version (Operating frequency 11.2896MHz) | ||
| Functional items | Installed number | Special notes |
| CPU instruction | MC68000CPU and fully compatible instruction system | |
| Interrupt signal | Auto vector level 1-7 interrupt | |
| Hardware configuration | MC68000 CPU with MC6800 (8-bit) interface removed | |
Table 2.2 SCSP LSI specifications (1)
| SOUND LSI SCSP (SATURN CUSTOM SOUND PROCESSOR) (operating frequency 22.5792MHz) | ||
| Functional items | Installed number | Special notes |
| Sound source part | ||
| Speech synthesis method | PCM speech synthesis and FM speech synthesis methods (* 1) Noise sound source (can be mixed) |
|
| Sound source section- Resampling frequency | 44.1KHz fixed, primary interpolation | |
| Waveform data format | 16-bit straight line and 8-bit straight line 2'S complement method | |
| Number of audio processing slots | 32 | Equivalent to 1 operator (1 slot) of PCM sound source and FM sound source |
| Maximum (most common) polyphony | 1-32 | Eight for all 4 operator (slot) type FM sounds, All sounds are 32 PCM sounds. (The number of slots used for one FM sound can be set arbitrarily. FM and PCM sounds can be mixed.) The total number of slots used exceeds 32. If not, any combination is acceptable. |
| Waveform loop function | For each slot, select from normal, reverse, or alternative loop |
|
| EG | 32 | 4-segment AMPLITUDE-EG (one in each slot) |
| LFO | 32 | One in each slot (for amplitude and frequency modulation) |
| LFO output waveform types | 4 | 4 waveforms of sawtooth, square, triangle, and white noise |
| Oscillator frequency | -8 to +7 octaves 1024 steps (non-linear) can be set between octaves | |
| DSP section for effects | ||
| DSP processing speed | 128 steps / Fs (multi-parallel DSP Fs = 44.1KHz) | |
| Program RAM | 128W | 128 words x 60 bits |
| Coefficient data RAM | 64W | 64 words x 13 bits |
| Temporary (general purpose) RAM | 128W | 128 words x 24 bits |
| Multiplier accuracy | 24 words x 13 bits = 26 bits output | |
| Adder precision | 26 words + 26 bits = 26 bits output | |
| DSP internal bus width | 24-bit data bus | |
* 1 FM speech synthesis is not limited to the conventional 4-operator (slot) type.
Any FM connection can be made using 2-32 operators.
Also, feedback settings can be made arbitrarily.