Methods of Synchronization
There are two ways to synchronize the two ends of the communication.
The synchronous signalling methods use 2 different signals. A pulse on one signal indicates when another bit of information is ready on the other signal.
The asynchronous signalling methods use only 1 signal. The receiver uses transitions on that signal to figure out the transmitter bit rate ("autobaud") and timing, and set a local clock to the proper timing, typically using a phase-locked loop (PLL) to synchronize with the transmission rate. A pulse from the local clock indicates when another bit is ready.
Read more about this topic: Comparison Of Synchronous And Asynchronous Signalling
Famous quotes containing the words methods of and/or methods:
“If you want to know the taste of a pear, you must change the pear by eating it yourself.... If you want to know the theory and methods of revolution, you must take part in revolution. All genuine knowledge originates in direct experience.”
—Mao Zedong (1893–1976)
“In inner-party politics, these methods lead, as we shall yet see, to this: the party organization substitutes itself for the party, the central committee substitutes itself for the organization, and, finally, a “dictator” substitutes himself for the central committee.”
—Leon Trotsky (1879–1940)