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HP Nanoprocessor - mfleming - 09-04-2020 03:39 PM
I found an interesting blog post on the HP nanoprocessor that was used in a number of HP instruments. Developed in 1974, it was a contemporary of the 6800 and 8080 microprocessors. The article goes into a great deal of detail on the architecture and fabrication process for the part, including the reverse engineering of the design from the fab masks. I'm posting this in the not-quite-but-related group due to the use of the processor in 98xx desktop plug-in modules and its instruction set.
http://www.righto.com/2020/09/inside-hp-nanoprocessor-high-speed.html
The article is posted in Ken Shirriff's blog, which is well worth a visit for the other chip teardown related articles.
Enjoy!
~Mark
RE: HP Nanoprocessor - Paul Berger (Canada) - 09-04-2020 05:31 PM
A few years ago Larry Bower sent me his own copy of the HP internal Nanoprocessor User's Guide which I scanned and it is available at https://www.hp9845.net/9845/downloads/manuals/Nanoprocessor.pdf as well as on hpmuseum.net.
Paul.
RE: HP Nanoprocessor - rprosperi - 09-04-2020 06:14 PM
(09-04-2020 05:31 PM)Paul Berger (Canada) Wrote: A few years ago Larry Bower sent me his own copy of the HP internal Nanoprocessor User's Guide which I scanned and it is available at https://www.hp9845.net/9845/downloads/manuals/Nanoprocessor.pdf as well as on hpmuseum.net.
Paul.
Very cool to own that Paul, thanks for sharing it with the community!
RE: HP Nanoprocessor - pinkman - 09-04-2020 08:41 PM
These good old times when a processor’s architecture, instructions set and pins layout were easily described in a few dozen pages.
The nano processor had 40 pins, today’s intel core 10e has 1200.