Yes, a
RS232 to USB converter does have a full-blown UART circuit built-in. As any standard UART, it
does have Rx, Tx, and flow control pins. ... When data is there, the
USB side returns the piece of data.
Mar 28, 2017');})();(function(){window.jsl.dh('6','
');})();(function(){window.jsl.dh('_jpWbYLHABKXe9AOiuoeQBA40','
');})();(function(){window.jsl.dh('8','
At a block level a USB to serial adapter consists of a USB serial processor chip, a serial driver chip and if the adapter is isolated there will be optocouplers in front of the USB and / or serial ports. The above design consists of a FT2232 USB serial processor from FTDI, which is a dual serial port processor.
