5.4 Hardware Handshaking Configuration

The USART features an out-of-band hardware handshaking flow control mechanism, implemented by connecting the RTS and CTS lines with the remote device. This method ensures reliable data transmission and reception between devices. It typically involves the use of additional control lines, such as RTS (Request to Send) and CTS (Clear to Send), to manage the data flow. When one device is ready to send data, it asserts the RTS line, and the receiving device responds by asserting the CTS line if it is ready to receive data.