hello, if I can ask. when I use the interrupt service at ORG 0x04 to see if there is incoming data on the RX, can I just test the bit RCIE at 0x04, jump to the part of the program that works with the data and enable GIE or do I have to return to the interrupt service and use RETFIE. It would be important for me to stay there and do some calculations on the data recieved thank you Stefano Vanzo -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics