Hi all, On Dec 12, 2013, at 5:37 AM, "J.G.Harston" <firstname.lastname@example.org> wrote: > Mike Naberezny wrote: >> Novaterm and DesTerm 128 also support the HART cartridge from >> Hatronics. This was an 8250-based design. It should be possible to >> install a 16550 in a HART cartridge but I haven't tried it. > > The 16550 is pin-compatible with the 8250, and "looks like" an 8250 to > the driving software if the driving software doesn't access the extra > features. > Pins: http://en.wikipedia.org/wiki/8250_UART > Ports: http://mdfs.net/Docs/Comp/DataSheet/ This leads to an obvious (to me, at least) next step: if you’re doing an HDL implementation anyway, why not invent a “6552” that extends the 6551 in the same way the 16550 extends the 8250? The world’s only gsteemso The Seattle Retro-Computing Society’s agitator-in-chief http://www.seattleretrocomputing.com/ Message was sent through the cbm-hackers mailing listReceived on 2013-12-12 16:00:07
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