I would really appreciate it if any one out there can help with this. I am sending data into the ADUc812 microconverter via the ADC then I am sending it out of the microconverter serially to an external circuit and the ouput of that circuit is then sent back to the microconverter in parallel where it is sent to the DAC. I was thinking of using SPICON SFR but was told it was not suitable for the circuit, can't use SICON cause the UART is connected to PC at all times so the only way it can go is out to the pins, can I use RI and TI if i send data out from pins if i set SICON previously and how do you easily do parallel ports on the ADUC812?

Again any help will be greatly appreciated.