Hi all! I'm pretty new at this so please tred easy on me. I've got one question: Does the MPLAB simulator simulate async serial output for the PIC16C74A? Whenever I run through a simulation, the simulator gets to the point where it is checking TXSTA,1 to see if the TXREG is empty and ready to send more data, but the bit is never set therefore the simulator stays in this loop. Thanx in advance, Jay Mielke JayQ@aol.com