William Chops Westfield wrote: > For the sake of this discussion, let's define "core size" > based on the registers and the add instruction. Let's not since that's not what it means, and is certainly not how Microchip uses the term. The core size refers to the instruction processor, which is why the PIC 16 is referred to as having a 14 bit core. If you don't say "core", it generally means the ALU width or the bit width of the most native data word. In that respect the PIC 16 is a "8 bit processor" since it has 8 bit data paths and ALU. ****************************************************************** Embed Inc, Littleton Massachusetts, (978) 742-9014. #1 PIC consultant in 2004 program year. http://www.embedinc.com/products -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist