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???
04/22/07 06:51
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 		 #137749 - But Lynn said it, and it's wrong
Responding to: ???'s previous message
Lynn Reed said:
The only way to connect external devices to the 8051 is to use MMIO, and access it through the MOVX instructions.

Mike Stegmaier said:
You forgot about the PORTS!

You can connect devices to ports P3 and P1 as well.
Many people connect LCD's to these ports.


Richard,

Mike is contradicting Lynn's incorrect statement that "MMIO is the only way"

This has nothing to do with telling the OP he's going the wrong way - just correcting Lynn's error (or mis-statement)

Same as http://www.8052.com/forum/read.phtml?id=137643 and http://www.8052.com/forum/read.phtml?id=137651

List of 36 messages in thread
TopicAuthorDate
MMIO            01/01/70 00:00      
   MMIO            01/01/70 00:00      
      The only way? I know, at least, 5 more            01/01/70 00:00      
         careful now ...            01/01/70 00:00      
            well            01/01/70 00:00      
               true enough!            01/01/70 00:00      
      Answer is incorrectlystated!            01/01/70 00:00      
      8051 offers more connection points            01/01/70 00:00      
         true, but he didn't ask about that            01/01/70 00:00      
            But Lynn said it, and it's wrong            01/01/70 00:00      
               I\'m forced to agree ... it is wrong ... but ...            01/01/70 00:00      
         That\\\'s already been thoroughly established!            01/01/70 00:00      
            Regret on the word "only"            01/01/70 00:00      
               n ow I have to TOTALLY disagree            01/01/70 00:00      
               Lynn, I KNEW Erik would jump you on this one!            01/01/70 00:00      
                  you missed the biggie            01/01/70 00:00      
                     He didn't ask for ancient or modern, just answers            01/01/70 00:00      
                        as I said            01/01/70 00:00      
   What are you trying to connect?            01/01/70 00:00      
   Ambiguity?            01/01/70 00:00      
      oh my            01/01/70 00:00      
         error?            01/01/70 00:00      
            8051 addressing is not segmented            01/01/70 00:00      
         Oh dear!            01/01/70 00:00      
            you missed the POINT            01/01/70 00:00      
               no, YOU did            01/01/70 00:00      
               try not to confuse beginners...            01/01/70 00:00      
               You failed to make that point!            01/01/70 00:00      
         useful? I'd say confusing            01/01/70 00:00      
         Mike, you didn't read the 8086 datasheet either            01/01/70 00:00      
   Hardware conections            01/01/70 00:00      
      Hardware conections...            01/01/70 00:00      
      an example...            01/01/70 00:00      
      trying to 'relanguage'            01/01/70 00:00      
   MMIO meaning            01/01/70 00:00      

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