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???
01/27/06 01:37
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 		 #108454 - Maybe Rude but right
Responding to: ???'s previous message

Windows do not have a mode to see in or see out. It works both ways.

The 8052 ports are the same way they are allways inputs and output.
If the port is loaded you get what is on the port, not what you wrote out (Like a PIC). There is no mode register (like a PIC)

Writes to the port turn on or off the pull downs. Reads always read the port pins. If you wrote zeros to the Port that is what you read back. If you write zeros and connect the port pit to Vcc you will get a 1 on aread. After you pop the driver the input may still work (I had an OKI emulator chip like that).

This Question shows up every month or so. I guess Erik saw it one too many times.

List of 51 messages in thread
TopicAuthorDate
initializing a port as output            01/01/70 00:00      
   STOP THE BABBLE            01/01/70 00:00      
      Keil says....            01/01/70 00:00      
         Keil is wrong!            01/01/70 00:00      
            what about the bible itself            01/01/70 00:00      
               the issue is not if someone can find ref            01/01/70 00:00      
                  Dont see any confusion            01/01/70 00:00      
                     what works            01/01/70 00:00      
                     The confusion arises...            01/01/70 00:00      
                        yes that may be the thing            01/01/70 00:00      
                  We talk about the "Bible"!            01/01/70 00:00      
                     it really is a wired or configuration            01/01/70 00:00      
                        No disagree            01/01/70 00:00      
                        I agree, but all are not equal            01/01/70 00:00      
         Confguring......            01/01/70 00:00      
   Quasi bidirectional            01/01/70 00:00      
      NO, NO, NO STOP THE BABBLE            01/01/70 00:00      
         there is only output mode            01/01/70 00:00      
            no, there is NO mode!!!!!!!!!!!!!            01/01/70 00:00      
         Who is babbling?            01/01/70 00:00      
            Maybe Rude but right            01/01/70 00:00      
               Mode clarified            01/01/70 00:00      
                  No, that's wrong            01/01/70 00:00      
                     i see            01/01/70 00:00      
                     Why is this wrong??            01/01/70 00:00      
                        playing with words            01/01/70 00:00      
                           Yes            01/01/70 00:00      
                           "Mode" is the word            01/01/70 00:00      
                              what i meant            01/01/70 00:00      
                  No            01/01/70 00:00      
                     which mode            01/01/70 00:00      
                     lets play with words            01/01/70 00:00      
                  Exception            01/01/70 00:00      
                     see this            01/01/70 00:00      
                     a valid, sometimes overlooked point            01/01/70 00:00      
                        Indeed            01/01/70 00:00      
               Yes, but weak or strong            01/01/70 00:00      
            yes and no            01/01/70 00:00      
               Yes, that's it!            01/01/70 00:00      
                  one more word            01/01/70 00:00      
         What a Rudeness            01/01/70 00:00      
   No input output            01/01/70 00:00      
      Just read the port!!!!!!!!!!!!!!!1            01/01/70 00:00      
         yes            01/01/70 00:00      
            not offending            01/01/70 00:00      
               not really            01/01/70 00:00      
                  see what keil says            01/01/70 00:00      
                     about "rudeness"            01/01/70 00:00      
                        No excuse            01/01/70 00:00      
                           what agression, what rudeness            01/01/70 00:00      
                              Haha!            01/01/70 00:00      

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