From: jrr@flippers.com   
      
   On 2025-12-07 9:57 a.m., John Robertson wrote:   
   > Hi Folks,   
   >   
   > I've done the online searches, and know that bitsavers.org (Hi Al K. if   
   > you are here) has a reasonable amount of information, however I am   
   > looking for ap notes and more information than is currently archived.   
   >   
   > At the moment one chip I am researching is the MM76E (not the 40-pin EL   
   > version) ROM as I can't find the pinout anywhere - so far. I can figure   
   > it out, but it is always better to have the manual if possible...   
   >   
   > Any documents found will be off to bitsavers of course, but I'm hoping   
   > that someone here has an ancient (70s!) Rockwell manual on these 42-pin   
   > spider chips!   
   >   
   > Did anyone ever make an emulator for the MM78 CPU family?   
   >   
   > Thanks,   
   >   
   > John :-#)#   
   >   
      
   Here is a list of PPS-4 documents as of June, 1974   
      
   PPS-4 DOCUMENTATION (from 29003N11: PPS-4 Basic Devices, Data Sheet,   
   Page 27)   
      
   The PPS is supported by a complete and comprehensive   
   set of documents. These documents are continually updated to   
   incorporate additional data and/or reflect new capabilities or   
   techniques.   
      
   The supporting documents are listed below:   
      
   TITLE		DOCUMENT NO.   
   29003N11	PPS-4 Basic Devices, Data Sheet (this document)   
   29000N32	Installation of 42-Lead Plastic Package   
   29000N31	MOS/ROM Card Format, Procedure   
   10738N11	Bus Interface, Data Sheet   
   10788N11	GPKD, Data Sheet   
   10789N11	Printer Controller, Data Sheet   
   10439PN10	MNOS Non-Volatile RAM, Data Sheet   
   10443N10	EAROM, Data Sheet   
   10696N22	GPl/O, Application Notes   
   29004N41	Evaluation Modules, Product Description   
   29001N20	Programmer's Reference Manual   
   29001N21	Programmer's Ref. Manual, Supp. No. 1   
   20992N20	Tymshare Timeshare Operating Manual   
   29004N20	GE Timeshare Operating Manual   
   29003N22	ROM Emulation for Microprogram Development, Application Notes   
   20371 N10	1200 BPS TOI, Data Sheet   
   2518-0-23	PPS-4 Applied to Electronic Weighing   
   Scale, Application Notes   
      
   John :-#)#   
      
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