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???
04/01/09 06:16
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#164111 - Maybe not
Responding to: ???'s previous message
I think that only applies to the internal flash execution. Prot.level 4 disables "roll-over" code access after addrses 0x7FFF. If EA is strapped to GND that does not apply and external code should always be possible.

- Dejan

List of 10 messages in thread
TopicAuthorDate
Problems running T89C51CC01 from ext. memory            01/01/70 00:00      
   test mode?            01/01/70 00:00      
      I don't think so            01/01/70 00:00      
         Maybe - protected ;            01/01/70 00:00      
            Maybe not            01/01/70 00:00      
               but you *can* try it...?            01/01/70 00:00      
                  I did            01/01/70 00:00      
                     What You did exactly?            01/01/70 00:00      
                        Erased lock bits            01/01/70 00:00      
                           bad chip or ...            01/01/70 00:00      

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