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???
02/09/07 20:20
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#132421 - for the standard '51/'52...
Responding to: ???'s previous message
8051 at 11.0592MHz, the maximum baud is 57600 (Timer 1 as baudrate source).
8051 at 22.1184MHz, maximum is 115200 (that's the common "agreed" maximum, mainly because of the level convertor chips end usually near this value).
8052 with Timer2 as baudrate generator, the maximum is 6x this value, 691200, but that's a "nonstandard" value, not found in PCs or other equipment.

JW



List of 28 messages in thread
TopicAuthorDate
Maximum Reliable UART Baud Rates for 805x            01/01/70 00:00      
   The UART in any chip with a T2 can run at F            01/01/70 00:00      
      Thanks guys.            01/01/70 00:00      
         not quite            01/01/70 00:00      
         syntax error            01/01/70 00:00      
            Point taken            01/01/70 00:00      
               welcome to the club            01/01/70 00:00      
                  Some club ...            01/01/70 00:00      
                     they just were too square :)            01/01/70 00:00      
                        Mmmh, yeah, well ...            01/01/70 00:00      
      not necessarily            01/01/70 00:00      
         Polling            01/01/70 00:00      
            not only this...            01/01/70 00:00      
               Scheme            01/01/70 00:00      
                  isn't it the same?            01/01/70 00:00      
                     polling all the way            01/01/70 00:00      
   Wrong question?            01/01/70 00:00      
      define maximum rate...            01/01/70 00:00      
   semantics            01/01/70 00:00      
   for the standard '51/'52...            01/01/70 00:00      
      HUH            01/01/70 00:00      
         PC            01/01/70 00:00      
            non-standard            01/01/70 00:00      
               Why comes in UART on PC and 232 buffer?            01/01/70 00:00      
                  sorry            01/01/70 00:00      
                     Good note            01/01/70 00:00      
               OK I take back            01/01/70 00:00      
            CP210x USB-UART            01/01/70 00:00      

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