The Quintessential PIC® Microcontroller

A second edition of this book has given me the opportunity to respond to suggestions from both students and correspondents from around the world, fromdisparateregionsrangingfromScotlandtoHawaii. Sincethe time of the ? rst edition written in the late 1990s, the Microchip PIC range has become the largest volume selling 8-bit MCU. The mid-range f- ily used in the original edition has continued to expand vigorously, with some of the exemplars used becoming essentially obsolete. In addition, the enhanced-range 16-bit instruction line has been enlarged from vir- ally nothing to form a signi? cant proportion of the family. At the same time, new introductions to the original low- (or base-) end architecture continue apace. Because of the close relationship between the low-, mid-, high- and enhanced-range lines, the focus of the new edition has stayed with the mid-range line up. Virtually all diagrams have been modi? ed, many extensively, and - merous additional new ? gures have been added. Throughout the text, special attention has been paid to clarify the basic concepts. In Part I, Chapter 3 has been extensively rewritten with this in mind and to b- ter integrate with Chapters 4 and 5 in Part II, both of which bear only a super? cial relation to the original text. Chapter 7, covering interrupt handling, has also been largely rewritten to elucidate a di? cult topic.