Chips › Sound & audio › FM synthesis › Yamaha YM2203 (OPN)
Yamaha YM2203 (OPN)
1984
Yamaha's OPN FM sound chip, combining three FM channels with an AY-style PSG in the NEC PC-88/98 and arcade hardware.
Machines
Operating systems
Emulators
| Emulator | Type | License | Site |
|---|---|---|---|
| Anex86 | downloadable | Freeware | Website ↗ |
| Common Source Code Project | downloadable | BSD-3-Clause | Website ↗ |
| M88 | downloadable | Freeware | Website ↗ |
| NP2kai | both | BSD-3-Clause | Website ↗ |
| Neko Project 21/W | downloadable | BSD-3-Clause | Website ↗ |
| Neko Project II | downloadable | BSD-3-Clause | Website ↗ |
| PC88Win | downloadable | Freeware | Website ↗ |
| QUASI88 | downloadable | BSD-3-Clause | Website ↗ |
| T98-Next | downloadable | Freeware | Website ↗ |
| XM8 | downloadable | Freeware | Website ↗ |
Reference & documentation
External technical references for programming Yamaha YM2203 (OPN) and for writing emulators.
| Resource | Type | Notes |
|---|---|---|
| Yamaha YM2203 OPN Datasheet (1989) ↗ | Datasheet | Official Yamaha datasheet: registers, timing, electrical specs |
| YM2203 datasheet (AllDatasheet mirror) ↗ | Datasheet | Alternate 13-page datasheet PDF mirror |
| Yamaha YM2203 OPN Datasheet (1989) ↗ | Pinout | 40-pin DIP pinout and signal descriptions |
| Furnace YM2203 system docs ↗ | Programming | Register effects, algorithms, channel-3 special mode |
| Collecting info on Yamaha FM soundchips (bryc) ↗ | Reference | Chip comparison plus undocumented OPM register quirks |
| YM2203 - VGMPF Wiki ↗ | Reference | Specs, pinout image, manual, games list |
| ymfm - Yamaha FM sound cores (OPM) ↗ | Source | BSD-licensed MAME OPM core, readable C++14 |
| Nuked-OPN2 (die-shot OPN emulator) ↗ | Source | Cycle-accurate OPN2 sister-chip from die reverse-engineering |
| FluBBaOfWard YM2203 emulator ↗ | Source | Dedicated ARM32 YM2203 emulator implementation |
| fmtoy - FM chip synthesizer ↗ | Tool | Emulated OPN MIDI synth, OPM-to-OPN testing |