Systemverilog For Hardware Description

This book introduces the reader to FPGA based design for RTL synthesis. It describes simple to complex RTL design scenarios using SystemVerilog. The book builds the story from basic fundamentals of FPGA based designs to advance RTL design and verification concepts using SystemVerilog. It provides practical information on the issues in the RTL design and verification and how to overcome these. It focuses on writing efficient RTL codes using SystemVerilog, covers design for the Xilinx FPGAs and also includes implementable code examples. The contents of this book cover improvement of design performance, assertion based verification, verification planning, and architecture and system testing using FPGAs. The book can be used for classroom teaching or as a supplement in lab work for undergraduate and graduate coursework as well as for professional development and training programs. It will also be of interest to researchers and professionals interested in the RTL design for FPGA and ASIC.

SystemVerilog is a rich set of extensions to the IEEE 1364-2001 Verilog Hardware Description Language (Verilog HDL). These extensions address two major aspects of HDL based design. First, modeling very large designs with concise, accurate, and intuitive code. Second, writing high-level test programs to efficiently and effectively verify these large designs. This book, SystemVerilog for Design, addresses the first aspect of the SystemVerilog extensions to Verilog. Important modeling features are presented, such as two-state data types, enumerated types, user-defined types, structures, unions, and interfaces. Emphasis is placed on the proper usage of these enhancements for simulation and synthesis. A companion to this book, SystemVerilog for Verification, covers the second aspect of SystemVerilog.

Verification is increasingly complex, and SystemVerilog is one of the languages that the verification community is turning to. However, no language by itself can guarantee success without proper techniques. Object-oriented programming (OOP), with its focus on managing complexity, is ideally suited to this task. With this handbook—the first to focus on applying OOP to SystemVerilog—we’ll show how to manage complexity by using layers of abstraction and base classes. By adapting these techniques, you will write more "reasonable" code, and build efficient and reusable verification components. Both a learning tool and a reference, this handbook contains hundreds of real-world code snippets and three professional verification-system examples. You can copy and paste from these examples, which are all based on an open-source, vendor-neutral framework (with code freely available at www.trusster.com). Learn about OOP techniques such as these: Creating classes—code interfaces, factory functions, reuse Connecting classes—pointers, inheritance, channels Using "correct by construction"—strong typing, base classes Packaging it up—singletons, static methods, packages

This book introduces the reader to FPGA based design for RTL synthesis. It describes simple to complex RTL design scenarios using SystemVerilog. The book builds the story from basic fundamentals of FPGA based designs to advance RTL design and verification concepts using SystemVerilog. It provides practical information on the issues in the RTL design and verification and how to overcome these. It focuses on writing efficient RTL codes using SystemVerilog, covers design for the Xilinx FPGAs and also includes implementable code examples. The contents of this book cover improvement of design performance, assertion based verification, verification planning, and architecture and system testing using FPGAs. The book can be used for classroom teaching or as a supplement in lab work for undergraduate and graduate coursework as well as for professional development and training programs. It will also be of interest to researchers and professionals interested in the RTL design for FPGA and ASIC.

XV From the Old to the New xvii Acknowledgments xx| Verilog A Tutorial Introduction Getting Started 2 A Structural Description 2 Simulating the binaryToESeg Driver 4 Creating Ports For the Module 7 Creating a Testbench For a Module 8 Behavioral Modeling of Combinational Circuits 11 Procedural Models 12 Rules for Synthesizing Combinational Circuits 13 Procedural Modeling of Clocked Sequential Circuits 14 Modeling Finite State Machines 15 Rules for Synthesizing Sequential Systems 18 Non-Blocking Assignment ("

The Verilog language is a hardware description language which provides a means of specifying a digital system at a wide range of levels of abstraction. The language supports the early conceptual stages of design with its behavioral level of abstraction, and the later implementation stages with its structural level of abstraction. The language provides hierarchical constructs, allowing the designer to control the complexity of a description. Verilog was originally designed in the winter of 1983/84 as a proprietary verification/simulation product. Since then, several other proprietary analysis tools have been developed around the language, including a fault simulator and a timing analyzer; the language being instrumental in providing consistency across these tools. Now, the language is openly available for any tool to read and write. This book introduces the language. It is sometimes difficult to separate the language from the simulator tool because the dynamic aspects of the language are defined by the way the simulator works. Where possible, we have stayed away from simulator-specific details and concentrated on design specification, but have included enough information to be able to have working executable models. The book takes a tutorial approach to presenting the language.

This book is both a tutorial and a reference for engineers who use the SystemVerilog Hardware Description Language (HDL) to design ASICs and FPGAs. The book shows how to write SystemVerilog models at the Register Transfer Level (RTL) that simulate and synthesize correctly, with a focus on proper coding styles and best practices. SystemVerilog is the latest generation of the original Verilog language, and adds many important capabilities to efficiently and more accurately model increasingly complex designs. This book reflects the SystemVerilog-2012/2017 standards. This book is for engineers who already know, or who are learning, digital design engineering. The book does not present digital design theory; it shows how to apply that theory to write RTL models that simulate and synthesize correctly. The creator of the original Verilog Language, Phil Moorby says about this book (an excerpt from the book's Foreword): "Many published textbooks on the design side of SystemVerilog assume that the reader is familiar with Verilog, and simply explain the new extensions. It is time to leave behind the stepping-stones and to teach a single consistent and concise language in a single book, and maybe not even refer to the old ways at all! If you are a designer of digital systems, or a verification engineer searching for bugs in these designs, then SystemVerilog will provide you with significant benefits, and this book is a great place to learn the design aspects of SystemVerilog."

Based on the highly successful second edition, this extended edition of SystemVerilog for Verification: A Guide to Learning the Testbench Language Features teaches all verification features of the SystemVerilog language, providing hundreds of examples to clearly explain the concepts and basic fundamentals. It contains materials for both the full-time verification engineer and the student learning this valuable skill. In the third edition, authors Chris Spear and Greg Tumbush start with how to verify a design, and then use that context to demonstrate the language features, including the advantages and disadvantages of different styles, allowing readers to choose between alternatives. This textbook contains end-of-chapter exercises designed to enhance students’ understanding of the material. Other features of this revision include: New sections on static variables, print specifiers, and DPI from the 2009 IEEE language standard Descriptions of UVM features such as factories, the test registry, and the configuration database Expanded code samples and explanations Numerous samples that have been tested on the major SystemVerilog simulators SystemVerilog for Verification: A Guide to Learning the Testbench Language Features, Third Edition is suitable for use in a one-semester SystemVerilog course on SystemVerilog at the undergraduate or graduate level. Many of the improvements to this new edition were compiled through feedback provided from hundreds of readers.