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SiriusHardware · 16th Nov 2019, 3:43 pm

Maybe one or more of: Z80-PIO (or perhaps the three-parallel-port 8255), Z80-SIO or Z80-DART, and maybe a Z80-CTC, one section of which could be the programmable baud-rate generator for the SIO/DART?

Non Volatile storage in the form of an ST or Dallas 'Thick memory' RAM package?

16th Nov 2019, 3:43 pm	#18
SiriusHardware Dekatron Join Date: Aug 2011 Location: Newcastle, Tyne and Wear, UK. Posts: 11,560	Re: Computer retro homebrew: Orton ZX79 Maybe one or more of: Z80-PIO (or perhaps the three-parallel-port 8255), Z80-SIO or Z80-DART, and maybe a Z80-CTC, one section of which could be the programmable baud-rate generator for the SIO/DART? Non Volatile storage in the form of an ST or Dallas 'Thick memory' RAM package?