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???
03/10/04 23:35
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 		 #66468 - RE: OH, by the way NEVER DO THIS
Responding to: ???'s previous message
PSEN is Programming SErial Enable!
You pull it down (from NoConnect) and if it is in this state, after reset the chip goes into program download mode over serial interface, otherwise it starts running the program from program memory. Since the chip needs to recognise the state of the pin (programming enabled/disabled) it obviously MUST be an input!

List of 67 messages in thread
TopicAuthorDate
Entering ISP with destroyed pin ?            01/01/70 00:00      
   RE: Entering ISP with destroyed pin ?            01/01/70 00:00      
      RE: Entering ISP with destroyed pin ?            01/01/70 00:00      
   RE: Entering ISP with destroyed pin ?            01/01/70 00:00      
      RE: Entering ISP with destroyed pin ?            01/01/70 00:00      
         RE: Entering ISP with destroyed pin ?            01/01/70 00:00      
         Utopia            01/01/70 00:00      
            RE: Utopia            01/01/70 00:00      
               RE: Utopia            01/01/70 00:00      
                  RE: Utopia            01/01/70 00:00      
                     RE: Utopia            01/01/70 00:00      
                     RE: Utopia            01/01/70 00:00      
                        RE: Utopia            01/01/70 00:00      
                           RE: Utopia            01/01/70 00:00      
                              RE: Utopia            01/01/70 00:00      
                                 RE: Business opportunity            01/01/70 00:00      
                                 Programmers            01/01/70 00:00      
                                    RE: Programmers            01/01/70 00:00      
                                       RE: Programmers            01/01/70 00:00      
                                          RE: Programmers            01/01/70 00:00      
                                    RE: Programmers            01/01/70 00:00      
   RE: Entering ISP with destroyed pin ?            01/01/70 00:00      
      RE: Entering ISP with destroyed pin ?            01/01/70 00:00      
   What to do with a damaged chip?            01/01/70 00:00      
      RE: What to do with a damaged chip?            01/01/70 00:00      
      RE: What to do with a damaged chip?            01/01/70 00:00      
   Living dangerously..            01/01/70 00:00      
      RE: Living dangerously..            01/01/70 00:00      
         RE: Living dangerously..            01/01/70 00:00      
   RE: Entering ISP with destroyed pin ?            01/01/70 00:00      
      RE: Entering ISP with destroyed pin ?            01/01/70 00:00      
      RE: Entering ISP with destroyed pin ?            01/01/70 00:00      
      RE: Entering ISP with destroyed pin ?            01/01/70 00:00      
   RE: Entering ISP with destroyed pin ?            01/01/70 00:00      
      RE: Entering ISP with destroyed pin ?            01/01/70 00:00      
         RE: Entering ISP with destroyed pin ?            01/01/70 00:00      
         RE: Entering ISP with destroyed pin ?            01/01/70 00:00      
            Multimeter check on ICs            01/01/70 00:00      
               RE: Multimeter check on ICs            01/01/70 00:00      
   OH, by the way            01/01/70 00:00      
      RE: OH, by the way            01/01/70 00:00      
         RE: OH, by the way            01/01/70 00:00      
            Time is more expensive!            01/01/70 00:00      
               RE: Time is more expensive!            01/01/70 00:00      
               RE: Time is more expensive!            01/01/70 00:00      
            RE: OH, by the way            01/01/70 00:00      
         RE: OH, by the way            01/01/70 00:00      
            RE: OH, by the way            01/01/70 00:00      
      Idea.            01/01/70 00:00      
         RE: Idea.            01/01/70 00:00      
            RE: french fried chips            01/01/70 00:00      
               RE: french fried chips            01/01/70 00:00      
                  Why not using the Hammer-effect?            01/01/70 00:00      
      RE: OH, by the way NEVER DO THIS            01/01/70 00:00      
         RE: OH, by the way NEVER DO THIS            01/01/70 00:00      
            RE: OH, by the way NEVER DO THIS            01/01/70 00:00      
               RE: OH, by the way NEVER DO THIS            01/01/70 00:00      
                  RE: OH, by the way NEVER DO THIS            01/01/70 00:00      
                     RE: OH, by the way NEVER DO THIS            01/01/70 00:00      
                        RE: OH, by the way NEVER DO THIS            01/01/70 00:00      
                           RE: OH, by the way NEVER DO THIS            01/01/70 00:00      
                           RE: OH, by the way NEVER DO THIS            01/01/70 00:00      
                              RE: OH, by the way NEVER DO THIS            01/01/70 00:00      
                              PSEN- Bartosz            01/01/70 00:00      
                                 RE: PSEN- Bartosz            01/01/70 00:00      
                                    RE: PSEN- Bartosz            01/01/70 00:00      
                              RE: OH, by the way NEVER DO THIS            01/01/70 00:00      

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