I would like to use the UART feature of the i.MX6 for having a RS-485 driver connection, as per Figure 64-11 of the reference manual.
The goal is to drive the direction control (DREN) of a half-duplex transceiver under timing constraint.
Can you please confirm that in such a connection and with appropriate register setup, the UART is able to automatically handle the CTS_B pin upon transmit?
Is there documentation showing the timing diagram of the CTS_B signal with respect to the end of a transmit?
In other words, what is the timing (maximum delay) between the stop bit of the last transmitted byte and the release of the CTS_B in this automatic mode?