Hello,
For single wire transmit/receive operation, It would be usual to have both transmitter and receiver sections of the SCI enabled - for this the value for SCI1C2 register would need to be $2C. Otherwise, there is little point in selecting-single wire mode for a receive only application.
Additionally, the TXDIR bit within SCI1C3 would need to be set to 1 whenever a byte is sent, and then returned to 0, once the transmission is complete, ready to receive any incoming data.
Regards,
Mac
Message Edited by bigmac on 2007-04-0612:09 AM