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???
05/29/08 22:08
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#155267 - whoooops
Responding to: ???'s previous message
give it a -1 "wrong answer" (for lack of "-1 was lazy to look it up properly") please...

the steering bit is called EEE and it's in a SFR which is not bit addressable, so it has to set/cleared by ANL/ORL or direct mov for those who are brave enough ;-)

Of course there is also an EEBUSY flag, not surprisingly in the very same SFR.

Interrupts don't need to be disabled unless they use XRAM (which is overlapped by the EEPROM at that moment).

JW




List of 13 messages in thread
TopicAuthorDate
Internal Flash for user data            01/01/70 00:00      
   Do you insist on AT89C51ED2?            01/01/70 00:00      
   HOW MUCH IS DATA?            01/01/70 00:00      
   Internal Flash for user data            01/01/70 00:00      
      Update            01/01/70 00:00      
   Internal Flash for User data            01/01/70 00:00      
      Internal Flash for User data            01/01/70 00:00      
         cant be right            01/01/70 00:00      
         doulble - ignore            01/01/70 00:00      
         that's write to internal EEPROM...            01/01/70 00:00      
            HUH?            01/01/70 00:00      
               whoooops            01/01/70 00:00      
   really whoops            01/01/70 00:00      

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