Re: User Port and AutoRun Addresses

From: Frank Kontros (
Date: 2001-02-02 23:29:38

Hello All,

jsgn> RS232 is operated via a 6551 (aka swiftlink) chip in the plus 4, and the
jsgn> I/O lines are run from a chip whose code I forget.  It's like a single
jsgn> port from a via, but contained alone in a 18pin chip (I'd love to get a
jsgn> box of these if someone listening knows where to find em!).

6529. I've spare one.

Best regards,

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