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???
06/01/06 19:34
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 		 #117553 - somewhere hereabouts
Responding to: ???'s previous message
OK so where would you draw the line between processor and controller?

this is not a line it is a fuzzy border

I would say that better math than 8*8 would make it either a processor on an "enhanced controller".

I'd say that bit specific instructions would make it a controller.

I'd say that many I/O pins (memory is NOT I/O) would make it a controller - but then there is the 8/12 pin "nanocontrollers".

I'd say that ROM/Flash program store ONLY! would make it a controller - but, of course, you can manhandle the '51.

I'd say that external program store ONLY! would make it a processor - but then there is the '31/32.

I'd say that a very wide memory address bus would say processor - but then there is the MX.

so, what makes the '51 a controller? limited math, bit instructions, no indirect addressing, limited stack ....

Erik


List of 57 messages in thread
TopicAuthorDate
PIC or AVR?            01/01/70 00:00      
   Unanswerable!            01/01/70 00:00      
   Definatlely AVR            01/01/70 00:00      
      Microchip aren't going broke!            01/01/70 00:00      
         Here comapines donot force PIC            01/01/70 00:00      
      How single minded can anyone be            01/01/70 00:00      
         Remember what I said about spelling?            01/01/70 00:00      
            unsafe at any speed            01/01/70 00:00      
               OK ... but what does it mean?            01/01/70 00:00      
                  Usage is the word            01/01/70 00:00      
                  usage?            01/01/70 00:00      
                     usafe = usage            01/01/70 00:00      
                        you took it right            01/01/70 00:00      
            Typing mistakes            01/01/70 00:00      
         ye nafareh pisheh ghazi rafti            01/01/70 00:00      
            a total contradiction            01/01/70 00:00      
      Noisy Application!            01/01/70 00:00      
         re noise            01/01/70 00:00      
         AVR Vs PIC !            01/01/70 00:00      
   I will vote avr            01/01/70 00:00      
      Not I!            01/01/70 00:00      
         so ...            01/01/70 00:00      
            that is what NASA said, too.            01/01/70 00:00      
   AVR            01/01/70 00:00      
   talking of alternatives            01/01/70 00:00      
      Not very well ... ...            01/01/70 00:00      
   neither and both            01/01/70 00:00      
   How about the PDP-8            01/01/70 00:00      
      down memeory lane            01/01/70 00:00      
   pic magazine            01/01/70 00:00      
      Everyday Practical Electronics.            01/01/70 00:00      
   definitley not PIC or DSPIC            01/01/70 00:00      
      The ICD is Not an emulator            01/01/70 00:00      
         Atmel fix everything? In dreams maybe.            01/01/70 00:00      
            Atmel = New Microsoft?            01/01/70 00:00      
               you did not highlight            01/01/70 00:00      
                  it's cheap? available in piles?            01/01/70 00:00      
                  You have piles too?            01/01/70 00:00      
                     excuse me?            01/01/70 00:00      
                        Piles            01/01/70 00:00      
                           Sh**!            01/01/70 00:00      
                              I think it is an older term            01/01/70 00:00      
                              I hope the embarassment did not make you            01/01/70 00:00      
                                 OK, heaps, or perhaps...            01/01/70 00:00      
                                    internal memory is not restricted to 'co            01/01/70 00:00      
                                       OK so where would you draw the line            01/01/70 00:00      
                                          somewhere hereabouts            01/01/70 00:00      
                                             I guess it's easier for us old-timers            01/01/70 00:00      
   please say what is better PIC or AVR?            01/01/70 00:00      
      nothing is BETTER            01/01/70 00:00      
         Good point!            01/01/70 00:00      
      What is better for you?            01/01/70 00:00      
         I'll select AVR!            01/01/70 00:00      
            Experience            01/01/70 00:00      
      it's still pure male cow manure            01/01/70 00:00      
      It is a religious issue            01/01/70 00:00      
   AVR            01/01/70 00:00      

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