What is the basic operation of UARTn?

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What is the basic operation of UARTn?


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Answer

(1) Set I/O connection to UART;

(2) Set serial port baud rate (UnDLM and UnDLL);

(3) Set serial port working mode (UnLCR and UnFCR);

(4) Send or receive data (UnTHR and UnRBR)

(5) Check the serial port status word or wait for the serial port interrupt (UnLSR).


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