Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!usc!samsung!munnari.oz.au!sirius.ucs.adelaide.edu.au!levels!etrmg
From: etrmg@levels.sait.edu.au
Newsgroups: comp.os.cpm
Subject: Re: Kaypro II needs help!
Message-ID: <15335.26de9ed0@levels.sait.edu.au>
Date: 31 Aug 90 17:30:56 GMT
References: <9008281713.AA29044@lll-lcc.llnl.gov>
Organization: Sth Australian Inst of Technology
Lines: 13

> the keyboard (serial) go in via a PIO, SIO, or a TTL 8-bit serial shift
> register (74LS164 ??) ?  Any comments would be appreciated.
> 
>               roger           rzh@lll-lcc.llnl.gov
>                               rzh@icf.llnl.gov


Hi:  In the 84 model I have there are 2 SIO's.  The keyboard uses half of one.
I'm not relly sure of the old units, but I have a schematic & I'll get back to
you on it.  As I recall, the 83 units only have one serial on the back panel
and no internal modem. So, I'd assume that one half of the SIO is for the port
and the other half is the keyboard.  That might get you going.  Catch up with
you soon. . .   Ronn