3 ports are used to control the OPL3 soundcard: &FEBC and &FEBE are register select ports, and &FEBD is the data port.
== Datasheets Compatible Serdaco soundcards ==*[[media:SAM2695.pdf|Dream SAM2695 Datasheet]] for the [https://www.serdashop.com/S2P S2P soundcard] aka General MIDI Wavetable Synth*[https://map.grauw.nl/resources/sound/yamaha_ymf262.pdf Yamaha OPL3 Datasheet] for the [https://www.serdashop.com/OPL3LPT OPL3LPT soundcard] aka Sound Blaster 16*[[media:Yamaha_YM3812.pdf|Yamaha OPL2 Datasheet]] for the [https://www.serdashop.com/OPL2LPT OPL2LPT soundcard] aka AdLib*[[media:Philips_saa1099.pdf|Philips SAA1099 Datasheet]] for the [https://www.serdashop.com/CMSLPT CMSLPT soundcard] aka Game Blaster*[[media:Texas_instruments_sn76489an.pdf|Texas instruments SN76489 Datasheet]] for the [https://www.serdashop.com/TNDLPT TNDLPT soundcard] aka Tandy Sound*[https://www.serdashop.com/CVX4 CVX4 soundcard] aka Covox*[https://www.serdashop.com/DB15MIDI DB15MIDI] aka MIDI OUT
[[Category:Peripherals]]