[NTLK] Wired article

Jeff Sheldon jeffsheldon at gmail.com
Sat Feb 11 21:31:15 EST 2017


This might be a red herring, but I wonder if the CL-PS7110 datasheet might be helpful. 

http://pdf.datasheetcatalog.com/datasheet/Cirrus_Logic/mXqzxsy.pdf

It's a later revision (1997), sure, and an amalgamation of what was originally separated into separate chips, but I wouldn't be surprised if they used a similar design for serial I/O.  I believe the 7010 talked to a LTC1323 chip to handle RS-422.


-Jeff

> On Feb 11, 2017, at 16:51, Jake Bordens <jake at allaboutjake.com> wrote:
> 
> Yes,  I put out a call for this very document when I was on a the SimpleBeep podcast with Thomas Brand.  No leads yet.
> 
> 
>> On Feb 11, 2017, at 5:41 PM, Matthias Melcher <mm at matthiasm.com> wrote:
>> 
>> 
>> Is that it?
>> 
>> http://www.warthman.com/projects-cirrus-logic-voyager-architectural-overview.htm
>> 
>>> On Feb 11, 2017, at 3:56 PM, Jeff Sheldon <jeffsheldon at gmail.com> wrote:
>>> 
>>> I just looked at Walter's collection online--but haven't seen Frank's shed.  At one point I was hemorrhaging Newton 2000s to the point of giving them as gifts to friends. Of everything I bought since 1994, my favorite is the complete array of Newton developers manuals.  
>>> 
>>> The big disappointment is that I could never get the Voyager Chipset manual. I had been in contact with an engineer at Cirrus Logic and that dead-ended. And the printing company only had the manual left on tape backup, but the machine was no longer operating in a way they could easily restore the print.  I finally resorted to stripping away the chip casings and took some photos with a microscope, for fun, but had always hoped to reconfigure the 2x00 footprint by designing a custom PCB and would have liked to have had those specs. 
>> 
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