Looking For Computer Automation LSI-3/05 Documentation

Pontus Pihlgren pontus at Update.UU.SE
Tue Oct 13 01:59:42 CDT 2020

On Thu, Oct 08, 2020 at 11:57:01PM +0000, TangentDelta via cctalk wrote:
> Hello.
> I have two card cages out of a pair of Linotron 202 phototypesetting machines, and have been hunting for documentation for the Naked Mini systems used in them for over a year now. The Computer Automation CPU boards in the systems have been a complete mystery to me until recently. To make a long story short, I happened to stumble across the patent for the machine (https://patents.google.com/patent/US4254468A/en), which has the same bus configuration as my card cages, and also provides some good evidence that "Naked Milli" 3/05 CPU boards were used.
> I've found documentation for the LSI 3/05's instruction set and an informative brochure, but nothing technical. Bitsavers has been a great help in my efforts to uncover more information about this processor, but there's still a lot of technical information that has eluded me (such as the autoload ROM, and how its data is arranged). The LSI-series computer handbook mentions a dedicated manual for the LSI 3/05, but I haven't found anything else about it online.
> If anyone has any information about the LSI 3/05, or where I might look for the manual, it'd be greatly appreciated.
> Thanks.


This seems to be mostly about the Naked Mini 4. But perhaps you can find something useful:


or maybe here:



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