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MK02 UART in single-wire mode

Question asked by Bruce Weyrauch on Aug 31, 2015
Latest reply on Aug 31, 2015 by Zhe Tian

I want to use the MK02 UART in single-wire mode.  I think understand that this means setting the UART TX PCR  pin registeras a UART Tx pin, and setting the LOOPS and RSRC bits in the UART.  Should the pullups be enabled on the Tx pin?  Is this bit automatically configured as open drain?