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Everything about Asynchronous serial communication

Form of serial communication lacking synchronization control signals

Asynchronous serial communication is a form of serial communication in which the communicating endpoints' interfaces are not continuously synchronized by a common clock signal. Synchronization is done by data-embedded signal: the data stream contains synchronization information in a form of start and stop signals set before and after each payload transmission. The start signal prepares the receiver for arrival of data and the stop signal resets its state to enable triggering of a new sequence. Wikipedia →

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  2. Pick up a classic book: Data Communications and NetworkingThe most-reprinted book on the subject
  3. Read the landmark paper: Asynchronous Current Mode Serial CommunicationCited 32 times
  4. Go sideways: Universal asynchronous receiver-transmitterA closely related topic
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