Digital Design With an Introduction to the Verilog HDL This page intentionally left blank Digital Design With an Introduction to the Verilog HDL FIFTH EDITION M. Morris Mano Emeritus Professor of Computer Engineering California State University, Los Angeles Michael D. Ciletti Emeritus Professor of Electrical and Computer Engineering University of Colorado at Colorado Springs Upper Saddle River Boston Columbus San Franciso New York Indianapolis London Toronto Sydney Singapore Tokyo Montreal Dubai Madrid Hong Kong Mexico City Munich Paris Amsterdam Cape Town Vice President and Editorial Director, ECS: Marcia J. Horton Executive Editor: Andrew Gilfillan Vice-President, Production: Vince O’Brien Executive Marketing Manager: Tim Galligan Marketing Assistant: Jon Bryant Permissions Project Manager: Karen Sanatar Senior Managing Editor: Scott Disanno Production Project Manager/Editorial Production Manager: Greg Dulles Cover Designer: Jayne Conte Cover Photo: Michael D. Ciletti Composition: Jouve India Private Limited Full-Service Project Management: Jouve India Private Limited Printer/Binder: Edwards Brothers Typeface: Times Ten 10/12 Copyright © 2013, 2007, 2002, 1991, 1984 Pearson Education, Inc., publishing as Prentice Hall, One Lake Street, Upper Saddle River, New Jersey 07458. All rights reserved. Manufactured in the United States of America. This publication is protected by Copyright, and permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. To obtain permission(s) to use material from this work, please submit a written request to Pearson Education, Inc., Permissions Department, One Lake Street, Upper Saddle River, New Jersey 07458. Many of the designations by manufacturers and seller to distinguish their products are claimed as trademarks. Where those designations appear in this book, and