[sebhc] busses and roms
sp11 at hotmail.com
Mon Jun 7 13:31:30 CDT 2004
>That reminds me of a question I keep forgetting to ask: are the busses in
>the H-8 and H-89 at all compatible? Could a card be designed to work for
>both? I know that each had its own version of the H-17 controller, yet
>share the 444-19 ROM. Aside from the difference in form factor, how
>different are they? (I don't have an H-8; yes, I'm a loser, I know. I'm
>working on it.)
No, the H8 cards are much larger than 89 cards, and the H8 has a much longer
50-pin bus connector (it's actually 2 separate 25-pin connectors in line).
And no, the H89 had a different rom series, starting with MTR-88 (the
original H8 rom is PAM-8). We don't yet have rom images in the archives,
but we do have listings for MTR-89 and MTR-90.
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