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???
11/25/07 02:17
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#147362 - master slave 8052 configuration
I am using the AT89LP4052 in a new design. Was planning to design a master that communicates with six slaves which will be located 6' away from the master. wanted to use the four serial pins SCK, MISO, MOSI, and SS<not> pins because the slave's RS232 is assigned to other tasks. The master would enable a slave through the SS pin then send and receive data from that slave. Everything will run off of 3.3 VDC.
My problem is I can't seem to find a IC that will buffer the data to and from (and is bidirectional) and will work at 3.3 VDC. I also have 12 VDC and 5 VDC available on each board so a level translation to the higher voltage along the 6' data cable would also be a plus and provide me some additional ESD protection. Does anybody have a solution to this problem?

List of 24 messages in thread
TopicAuthorDate
master slave 8052 configuration            01/01/70 00:00      
   Options            01/01/70 00:00      
   Wait a minute - Bidirectional...?            01/01/70 00:00      
      MOSI TO MOSI            01/01/70 00:00      
         Eh??            01/01/70 00:00      
            page 40            01/01/70 00:00      
               Out of date?            01/01/70 00:00      
               Not bidirectional            01/01/70 00:00      
   use RS485 transmitters and receivers            01/01/70 00:00      
   That is not how it works            01/01/70 00:00      
      just clearing it up            01/01/70 00:00      
         UART tied up - EZ-LCD rate question            01/01/70 00:00      
            crystal frequencies and timer 1 reload values            01/01/70 00:00      
               A common crystal            01/01/70 00:00      
                  what is confusing?            01/01/70 00:00      
                  Synonyms            01/01/70 00:00      
                     crystal chosen            01/01/70 00:00      
                        read, READ, read the thread            01/01/70 00:00      
                           read-ed            01/01/70 00:00      
                              Kiel calculator revisit            01/01/70 00:00      
                                 correct, but there is s small problem            01/01/70 00:00      
                                    yes device differs            01/01/70 00:00      
            unless you have a very fast micro ...            01/01/70 00:00      
   ATMEL Baud rate calculator            01/01/70 00:00      

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