Expand description
Field CTSEN
writer - CTS Enable. Determines whether CTS is used for flow control. CTS can be from the input pin, or from the USART’s own RTS if loopback mode is enabled.
No flow control. The transmitter does not receive any automatic flow control signal.
Flow control enabled. The transmitter uses the CTS input (or RTS output in loopback mode) for flow control purposes.