STRUCTURE OF A FRAME

A START BIT

This component signals that a frame is starting & enables the receiving device to synchronize itself with the message.

DATA BITS

This component consists of a group of seven or eight bits when character data is being transmitted.

A PARITY BIT

This component is optionally used as a crude method of detecting transmission errors.

A STOP BIT OR BITS

This component signals the end of the data frame.

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