XSG - Extended Sound Generator

Reference

• Application Manual
• Register Map
• MSX BASIC Extensions
• Amplitude Calculator

Updates

• 15/01/2019: Version 0.2
  • Register Map: Register map changed to make it register-compatible with Yamaha's OPN family chips;
  • Application Manual: Changed timers to make them more like the OPN ones;
  • Application Manual: Added graphical representation of envelope generator output;
  • Application Manual: Changed wave selection method to make it more flexible.
• 04/12/2017: Version 0.1
  • First draft.

To do

• MSX BASIC Extensions: @W command;
• MSX BASIC Extensions: Commands overhaul.

Acknowledgements

• This documentation is inspired by General Instrument's documentation for the AY-3-8910 PSG. XSG itself is inspired on the GI AY-3-8910 PSG, Konami's SCC and Yamaha's OPN family chips.
• A huge thank you goes to Fabio Belavenuto and Fabio Schmidlin for their invaluable help.