AnsweredAssumed Answered

Function of the DCEDTE bit in the UART of the i.MX6SL MX6

Question asked by Nathan Palmer on May 31, 2014
Latest reply on Jun 5, 2014 by Yuri Muhin

I am looking for clarification of the function of the UART DCEDTE register value on the i.MX6SL.  The MX6SLEC (Electrical Characteristics) Document says that the DCEDTE bit changes the direction of the RX and TX pins on the MX6SL.  However, the MX6RM (Reference Manual) Document says that the RX_DATA signals are always inputs and the TX_DATA signals are always outputs, regardless of the DCEDTE bit. 


Which pins should I connect to the INPUTs and OUTPUTs of my MAX232 chips if I want to support two separate UARTs in my design, one that is a DCE and one that is a DTE? 


PS: I found some duplicate questions on this forum but none seemed to have definitive answers.