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Serial Communication

 

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Serial communication through single wire 

 

Block Diagram Of UART



Block diagram of UART (a)Transmitter half


Block diagram of UART (b) Receiver half



 
Block diagram of UART transmitter for 11-bit transmission


Block diagram of UART receiver to receive 11 bits
 
 

Registers for Serial Data Communication

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SCON register

Table: SCON register


 

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PCON register
 
 

Serial Communication Modes


There are four serial communication modes such as
  • Mode 0—Shift register mode
  • Mode 1—Standard UART mode
  • Mode 2—Multiprocessor mode
  • Mode 3—9 bit UART mode
 

Multiprocessor Communication


Multiprocessor communication

 

 





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