INTRODUCTION TO MICROPEOCESSOR
MICROCOMPUTER SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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CPU and USART
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RXRDY and TXRDY
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SYNDET and BD
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WXRDY and TXRDY
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Detailed explanation-1: -RxRDY: It stands for receiver ready. When this signal goes high then it indicates that the receiver buffer register is holding the data and is ready to transfer it to the processor. Once the CPU reads the data sent by the 8251 then this pin is reset.
Detailed explanation-2: -RTS: It is an output signal which is used to set the status RTS. 4. Transmit buffer – This block is used for parallel to serial converter that receives a parallel byte for conversion into serial signal and further transmission onto the common channel. transmitted all the data characters and transmitter is empty now.
Detailed explanation-3: -TxE (Transmitter Empty) : This is an output signal. A high on this line indicates that the output buffer is empty.