INTRODUCTION TO MICROPROCESSORS

Microprocessors are electronics chips that functions as the central processing unit (CPU) of a computer. A processor uses the basic concept of stored program execution. Every microprocessor has its own associated set of instructions that adjust and contains ways of computing and communicating with other hardware. A minimal hypothetical microprocessor contains arithmetic and logic unit (ALU), Instruction decode and control unit, Instruction register, Program counter (PC), clock circuit (internal or external), reset circuit (internal or external) and registers. As integrated circuit technology advanced, it has been feasible to manufacture more and more complex processors on a single chip, allowing more transistors on a single chip and then increasing allowed word sizes from 4- and 8-bit words up to today’s 64-bit words. Additional features were added to the processor architecture; more on-chip registers speed up programs, and complex instructions could be used to make more compact programs.

This book, Introduction to Microprocessors, provides a solid foundation in the technology of microprocessors and microcontrollers, their principles and applications. It introduces the practicing engineer to microprocessors and covers topics ranging from components for information processing to hardware structures and addressing modes, along with support software and structured programming. General principles are illustrated with examples from commercial microprocessors. In today’s life, we uses microprocessor in exactly all devices. Our computer, calculators and Mobiles are some examples. It is very useful in the field of instrumentation. It is also used in medical instrumentation. Microprocessor based controllers are available in home appliances, such as microwave oven, washing machine etc., microprocessors are being used in controlling various parameters like speed, pressure, temperature etc. These are used with the help of suitable transduction. Microprocessors are being used in a wide range of communication equipments. In telephone industry, these are used in digital telephone sets. Telephone exchanges and modem etc. The use of microprocessor in television, satellite communication have made teleconferencing possible. Railway reservation and air reservation system also uses this technology. LAN and WAN for communication of vertical information through computer network. Microprocessor based microcomputer with software packages has changed the office environment. Microprocessors based systems are being used for word processing, spread sheet operations, storage etc. The microprocessor has transform the publication technology. The usage of microprocessor in toys, entertainment equipment and home solicitations is making them more entertaining and full of features. The use of microprocessors is more widespread and popular. This is an invaluable guide for both students and practicing engineers, as well as researchers. It will lead the reader even beyond the simplest cases to comparative studies and so a better understanding of its functioning. The text is comprised of nineteen chapters.