Answer / nithyalakshmi

asynchronous transmission does not required any
syncronizing pulses , instead it needs start and stop bit
to acknowledge the first and last bit of the data which is
transmitted.these bits can be high or low.
In some advanced controllers which has in built UART ,
provide option to select no. of start and stop bits in the
transmission.

Answer / suraj thakur

asynchronous transmission does not required any type of
synchronous bits.only requre start and sotp bits.just for
acknowledgement

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