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- Next, the SCSP chip block diagram shown in Figure 2.1 is explained.
- Sound CPU interface
- Interface to connect MC68EC000.
- Main CPU interface
- This interface connects the system controller (SCU).
- DMA transfer interface
- Data transfer between SCSP and sound memory is possible with DMA controller with built-in SCSP.
- MIDI interface
- Serial interface compatible with the MIDI standard. However, some external circuitry is required to support MIDI connectors.
- External input (external digital audio input interface)
- An interface that receives digital audio signals from external devices (external devices).
- LFO (Low Frequency Oscillator)
- A function generator that generates a waveform with a frequency lower than the range that can be heard by the human ear, and is used as a waveform for various modulations.
- Phase Generator
- This block calculates and calculates frequency information according to the sound frequency setting of PCM data.
- Address pointer
- Generates a waveform address value based on phase information from the phase generator.
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