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공지사항

Dear all,


Thanks for purchasing the SD Music card.

Due to the good approach for new Yamaha sound chip,

I made plan to enhance the SD Music card for better capability.


Now, I'm testing new SD Music card (Maybe Deluxe version).


It have a YMF262 OPL3 chip for sound generation.

It have good capabilities for Music and can have much more Music instruments.

It is generating Stereo sound with clean sound.


This YMF262 was used for some version of Sound Blaster for IBM PC.







YMF262 have below capabilities,


https://en.wikipedia.org/wiki/Yamaha_YMF262

  • 18 2-operator channels
  • 15 2-operator channels + 5 drum channels (drum setting on)
  • 6 2-operator channels + 6 4-operator channels (4-op setting on)
  • 3 2-operator channels + 6 4-operator channels + 5 drum channels (both settings on)


It have maximum 18 channels, hence, it could more than Mocking board channels so, I want use the rest channels for music, and now looking for schematic of Phasor, I need IO address information how does it connected or control by APPLE II.

If some one know about the IO map or related information, Please let me know.


Anyway, I'm trying to understand all parts of YMF262 for similar emulation for mocking board and Phasor compatible card.


Keep watch it. ^^;

Thank you

Ian Kim

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