*MSX-AUDIO OPL - Yamaha Y8950 [[Media:Y8950 MSX Audio 198608.pdf|Datasheet]] [[Media:Y8950am.pdf|Application manual]]
*MSX-MUSIC OPLL - Yamaha YM2413 [[Media:YM2413B(-F).pdf|Datasheet]] [[Media:Yamaha ym2413 frs.pdf|Application manual]]
*[https://download.file-hunter.com/Manuals/R800%20User%20Manual.pdf ASCII R800 CPU User Manual (japanese)] [https://www.angelfire.com/art2/unicorndreams/msx/Z80R800A.html Z80 and R800 opcode tables]
*[[Media:Ricoh rp5c01.pdf|Ricoh RP5C01 Real Time Clock]]