Mike wrote : > One thing I never could find at uChip's site is what's referred to in the 16F628 spec > as a Programming Reference. Closest I could get was the Mid-Range Reference > Manual. Is that what they meant? No, he means the "PIC16F62X EEPROM Memory Programming Specification". This is the document that describes precisely how the flash memory is laid out and how to read/write it. It is 22 pages long and is located right here: http://www.microchip.com/download/lit/suppdoc/specs/30034d.pdf michael brown -- 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