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???
11/14/11 22:02
Modified:
  11/15/11 00:17
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 		 #184739 - In general
Responding to: ???'s previous message
Andy Peters said:
UART: "Universal Asynchronous Receiver/Transmitter."

You may also see "USART" (though not so common with 8051) - which is Universal Synchronous/Asynchronous Receiver/Transmitter

Andy Peters said:
The "0" and "1" in "UART0" and "UART1" are meant to distinguish the two UARTs that are present in some micros

Some also have UART2, UART3, etc,...

In general, when a device has multiple peripherals of the same type, they will be identified as Peripheral-0, Peripheral-1, etc..

eg,

  • a "standard" 8051 has four IO ports - called "Port-0", "Port-1", "Port-2", and "Port-3"

  • a "standard" 8051 has two timers - called "Timer-0", "Timer-1" - and the 8052 added a third called, naturally, "Timer-2"

  • etc, etc,...

    • List of 6 messages in thread
    TopicAuthorDate
    Definition of a UART?            01/01/70 00:00      
       re: Definition            01/01/70 00:00      
          Thanks            01/01/70 00:00      
          In general            01/01/70 00:00      
             silliness            01/01/70 00:00      
                It's the product of decades of imprecise nomenclature            01/01/70 00:00      

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