11-21-15 12:23 Terry Raymond wrote to All about C64/C-128 MOS chip pin in   
   Howdy! Terry,   
      
    TR> @MSGID: <5651A991.1239.cbm@capcity2.synchro.net>   
    TR> Hi where could I find all C64/ C-128 MOS chip pin info mainly I need to   
    TR> know with each chip where Ground pin is?   
      
   -snip-   
      
   In the "The Anatomy Of the Commodore 64" book by Abacus Software,   
   I found this information, Hope it helps.   
      
   I.C.      GND Pin   
   6510 CPU  21   
   6581 SID  14   
   6567 VIC  20   
      
   The book says Pin 1 of the 6526 CIA is mass, that may be the GND Pin   
   since all other pins of that I.C. are signal lines.   
      
   The Expansion Port has GND at Pins 1, 22, A and Z .   
      
   The User Port has GND at Pins 1,12, A and N .   
      
   I couldn't find the schematic of the C=64 in the back of my copy of   
   the Commodore 64 Programmers Manual or I would had used that instead   
   of the Anatomy book.   
      
   Jameco in the past has had parts for the C=64, look them up - jameco.com   
      
      
   ... Efficiency is a highly developed form of laziness.   
   --- MultiMail/MS-DOS v0.49   
   --- SBBSecho 2.12-Linux   
    * Origin: CCO BBS - capcity2.synchro.net - 502-875-8938 (1:2320/105.1)