John Wakerly - Digital Design Principles And Practices英文资料.pdf

Hi, I'm John . . . .
DO NOT chapter
COPY 1
DO NOT
IntroductionCOPY
e to the world of digital design. Perhaps you’re -
puter science student who knows all puter software
•••••••
DOand programming, NOT but you’re still trying to figure out how all
W that fancy hardware could possibly work. Or perhaps you’re
an electrical engineering student who already knows some-
thing about analog electronics and circuit design, but you wouldn’t know a
bit if it bit No matter. Starting from a fairly basic level, this book will
show you how to design digital circuits and subsystems.
We’ll give you the basic principles that you need to figure things out,
and we’ll give you lots of examples. Along with principles, we’ll try to
convey the flavor of real-world digital design by discussing current,
practicalDO considerations whenever NOT possible. And I, the author, will often
refer to myself as “we” in the hope that you’ll be drawn in and feel that we’re
walking through the learning process together.
AboutCOPY Digital Design
Some people call it “logic design.” That’s OK, but ultimately the goal of
design is to build systems. To that end, we’ll cover a whole lot more in this
text than just logic equations and theorems.
This book claims to be about principles and practices. Most of the prin-
ciplesDO that we present will continueNOT to be important years from now; some
Copyright © 1999 by John F. Wakerly Copying Prohibited 1
••••••••••••••••••••••••••••••••••••••••••••••••••••••••
2 Chapter 1 Introduction
may be applied in ways that have not even been discovered yet. As for practices,
they may be a little different from what’s presented here by the time you start
working in the field, and they will certainly continue to change throughout your
DO So you should treat the “practices” COPY material in this book as a way to rein-
force principles, and as a way to learn design methods by example.
One of