1/14/2012

Verilog HDL: Digital Design and Modeling Review

Verilog HDL: Digital Design and Modeling
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I've been a fan or Mr. Cavanagh books beginning with his book "Digital Computer Arithmetic". Digital Computer Arithmetic: Design and Implementation (Computer Science) which I applied to an IC design I was working on (Philips 8051 derivative circa 1990). Now, I've found that I need to update my design skills and have a need to learn and apply the Verilog HDL language to apply to SDR radio design project ideas. This book fits that need. The book is not intended to be a tutorial on logic design. It is intended to be a tutorial on the complete Verilog language together with wide variety of design examples. The book begins with an overview of the Verilog language structure, language elements, and modeling concepts. Next the Verilog language elements, expressions, are covered followed by in-depth discussions of gate-level, dataflow, and behavioral, structural modeling. User-defined primitives, tasks, and functions are given apt attention. The book closes with addition design examples (a simple RISC CPU), and event queues. Note that the author uses the SILOS simulator for all examples. I found this to be an issue due to the cost of SILOS. However, a after a little research ending up with a quick trip to Wikipedia uncovered a nice low-cost Verilog design environment called LogicSim by Zeemz ([...]). Although I don't endorse any particular product, I've had no issues with LogicSim working my way thorough various portions of this book. I've also found that having a FPGA design kit (in my case a Xilinx Spartin-3 kit) is quite useful to apply the concepts. Your mileage may vary.
Note that if you are new to Verilog (but not to programming in general) the book is quite easy to read. Note that in order to fully grasp Verilog, in my opinion, you need to read the entire text (all 770+ pages) and work the examples. The explanation of Verilog is not condensed with follow-on project. The approach is to get you started with simple examples of what is presented in latter chapters. The various parts of Verilog are then covered in more depth. Some may not like this approach opting, instead, for a book that has complete projects on a specific kit (Xilinx Spartan 3, etc.). This is not the book for those individuals. There are plenty of books on Verilog. This book happens to fit my need to cover Verilog with, what I would describe, and "architectural twist". Mr. Cavanagh's other book complements this book.
The contents of the book are as follows:
Chapter 1 Introduction
Chapter 2 Overview
Chapter 3 Language Elements
Chapter 4 Expressions
Chapter 5 Gate-Level Modeling
Chapter 6 User-Defined Primitives
Chapter 7 Dataflow Modeling
Chapter 8 Behavioral Modeling
Chapter 9 Structural Modeling
Chapter 10 Tasks and Functions
Chapter 11 Additional Design Examples
Appendix A Event Queue
Appendix B Verilog Project Procedure
Appendix C Answers to Select Problems


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Emphasizing the detailed design of various Verilog projects, Verilog HDL: Digital Design and Modeling offers students a firm foundation on the subject matter. The textbook presents the complete Verilog language by describing different modeling constructs supported by Verilog and by providing numerous design examples and problems in each chapter. Examples include counters of different moduli, half adders, full adders, a carry lookahead adder, array multipliers, different types of Moore and Mealy machines, and much more. The text also contains information on synchronous and asynchronous sequential machines, including pulse-mode asynchronous sequential machines.In addition, it provides descriptions of the design module, the test bench module, the outputs obtained from the simulator, and the waveforms obtained from the simulator illustrating the complete functional operation of the design. Where applicable, a detailed review of the topic's theory is presented together with logic design principles, including state diagrams, Karnaugh maps, equations, and the logic diagram. Verilog HDL: Digital Design and Modeling is a comprehensive, self-contained, and inclusive textbook that carries all designs through to completion, preparing students to thoroughly understand this popular hardware description language.

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