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???
04/30/07 11:07
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#138270 - stability ?
Responding to: ???'s previous message
I have no idea, what do you mean with "stability".

Both cores are stable (no core erratas known).


If you mean code efficiency then the 8051 was typically better, that the AVR, because the 8051 can very fast and code saving deal with bits and small memory (120 bytes direct memory for fast variables).
This was the typical usage on control applications.


If you mean speed, then modern 8051 one-clocker are faster than the AVRs.
AVRs are faster as the old original 12-clocker 8051.


Only on dealing with large memory, the AVR can be faster (auto increment, 3 pointer registers to handle 64kB memory).


There are also some 8051 derivates, which can deal with very large memory (up to 8MB code and 8MB data).


Peter


List of 19 messages in thread
TopicAuthorDate
MCU Core performance stability atmels            01/01/70 00:00      
   Unanswerable!            01/01/70 00:00      
   No perceivable difference            01/01/70 00:00      
   stability ?            01/01/70 00:00      
      perhaps he means.....            01/01/70 00:00      
         I thought that was PCs?            01/01/70 00:00      
      EMI environments            01/01/70 00:00      
         please elaborate            01/01/70 00:00      
            Microchip documents them -no            01/01/70 00:00      
               is nothing but sales babble            01/01/70 00:00      
                  PIC Perception            01/01/70 00:00      
                  broad sales driven statement            01/01/70 00:00      
                     what 'issues'?            01/01/70 00:00      
   Atmegas            01/01/70 00:00      
      Looking Inside?            01/01/70 00:00      
         you don't?            01/01/70 00:00      
            able to keep up            01/01/70 00:00      
               and so is NXP            01/01/70 00:00      
      Atmegas            01/01/70 00:00      

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