Universal asynchronous receiver-transmitter - Wikipedia
https://en.wikipedia.org/wiki/Universal_asynchronous_receiver-transmitter
OverviewTransmitting and receiving serial dataHistorySpecial transceiver conditionsUART in modemsEmulationSee alsoFurther readingA universal asynchronous receiver-transmitter is a peripheral device for asynchronous serial communication in which the data format and transmission speeds are configurable. It sends data bits one by one, from the least significant to the most significant, framed by start and stop bits so that precise timing is handled by the communication channel. The electric signaling levels are hand…
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