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???
12/14/05 19:29
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#105239 - Mode-3: Automatic Address Recognition
Responding to: ???'s previous message
Kai Klaas said:
... recieved in the SBUF register, an interrupt is invoked, 9th bit is tested ...

If you have a derivative with the Enhanced UART, the checking of the 9th bit and the address can be done automatically by the hardware - no need to write software or waste instruction cycles to do these checks!

See: http://www.8052.com/forum/read.phtml?id=104456



List of 11 messages in thread
TopicAuthorDate
rs485            01/01/70 00:00      
   fundamentals!            01/01/70 00:00      
      rs485            01/01/70 00:00      
         modbus specifications            01/01/70 00:00      
            thanks            01/01/70 00:00      
               Protocol            01/01/70 00:00      
                  pls bear with us            01/01/70 00:00      
                     9th bit communication            01/01/70 00:00      
                        rs-4385 fail most of the time because no            01/01/70 00:00      
                        Mode-3: Automatic Address Recognition            01/01/70 00:00      
   THANKYOU            01/01/70 00:00      

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