Changes
Play2CPC is an evolution of the [[Plus2CPC]] adapter which includes new major features. [[File:Play2cpc sticker.jpg]] <br> =Features=
* Extra audio capabilities (Yamaha OPN3 soundchip)
* Sound mix into the CPC speaker or stereo audio jack
* Support for RW cartridges to save/update games, scores and settings
* Boot switch and reset button commodities
[[File:Play2cpc sticker.jpg|500px]]
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The C4CPC can already be used on the Plus2CPC and Play2CPC cartridge adapters.
The Plus2CPC and Play2CPC allow to program a compatible blank cartridge from the CPC. No USB plug needed.
===GX4000: Compatible with cartridges but not the device===
===PlayCity: Partially compatible===
Sound capabilities are also quite different. The Play2CPC is equipped with an obscure soundchip, the OPN3 (ymf288). It offers 3 SSG chans, 6 FM 4-op chans and 6 digidrum chans.
The PlayCity is instead equipped with 2 SSG soundchips offering a total of 6 SSG chans, but no FM and no digidrum chans.
So the few PlayCity programs using 9ch AY will be not replayed by the Play2CPC.
=Technical information=
I/O Ports:* Port &F988: read status 0 or select a page 0 register (for SSG, digidrums and the first 3 FM chans)* Port &F984: read status 1 or select a page 1 register (for the last 3 FM chans)* Port &F888: read/write to the selected register
You can also use the CRTC cursor registers to program the raster interruption ([[NMI]]) located at &0066.
The OPN3 soundchip is a light version of the OPNA soundchip with some functionalities removed: no external ADPCM, no Composite Sine Mode and no GPIO.
6 digidrum instruments are included in the internal ROM of the soundchip.
Relevant datasheets: *[[Media:YMF288.pdf|OPN3 (ymf288) (Japanese)]] and *[[Media:YM2608J Translated.pdf|OPNA (ym2608) (English)]] [https://framagit.org/offset/play2cpc-acepansion Play2CPC ACEpansion] on Framagit
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[[Category:Music and sound]]
[[Category:Peripherals]]
[[Category:Hardware]]
[[Category:Cartridges]]
