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???
06/20/05 08:50
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#95325 - Compatibility
Responding to: ???'s previous message
"its to allow vendors the ability to add new features and at the same time maintain compatability with older products."

I don't see how that could be the reason in this case, if bit 1 is given a function in future then using the method of incrementing AUXR1 to switch between DPTR0 and DPTR1 would then have a side effect. I suppose you could have yet another bit to select 'legacy compatibility mode', or something, but then it's all getting a bit ridiculous.

It seems a reasonable question to me, if somewhat pointless.

List of 11 messages in thread
TopicAuthorDate
AUXR1 Register in AT89C51RD2            01/01/70 00:00      
   Selecting more than two DPTRs            01/01/70 00:00      
   all derivatives            01/01/70 00:00      
      not all members            01/01/70 00:00      
      Compatibility            01/01/70 00:00      
   or maybe            01/01/70 00:00      
      Don't shoot!            01/01/70 00:00      
   who cares ONE iota - and, if you want to            01/01/70 00:00      
      Thank you for your suggestion.            01/01/70 00:00      
   Because thay can!            01/01/70 00:00      
      Not directed to            01/01/70 00:00      

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