I especially like the inclusion of a small programmable logic area in the chip - and the fact that it can be reconfigured at runtime and appears to be well documented with regards to the configuration, so you are not stuck with just one vendor's tools for configuring it. --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .