The data sheet for the PIC16C71 mentions 3 different types of this chip. They are the 16C710, 16c711, and 16c715. I have a 16C71 JW which was a sample part included with a PICStart16B1 from late 1995. The only other indication on it is the characters s1. How do I know for sure which version it is so as to get the right include file when using mpasm? This is the 18-pin DIP package with a quartz window. Martin McCormick