A 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
Raspberry Pi 2 connected to a laptop through a UART to USB adapter. Three wires are used: one for ground and one for data in each direction. Such a setup can be used to access the command-line interface of the Raspberry Pi running Linux from the host computer .
16550 UART
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The 16550 UART is an integrated circuit designed for implementing the interface for serial communications. The corrected -A version was released in 1987 by National Semiconductor. It is frequently use
Exar 16550
National Semiconductor NS16550AFN