Download or read book Completion Detection in Asynchronous Circuits written by Pallavi Srivastava and published by Springer Nature. This book was released on 2022-11-08 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is intended for designers with experience in traditional (clocked) circuit design, seeking information about asynchronous circuit design, in order to determine if it would be advantageous to adopt asynchronous methodologies in their next design project. The author introduces a generic approach for implementing a deterministic completion detection scheme for asynchronous bundled data circuits that incorporates a data-dependent computational process, taking advantage of the average-case delay. The author validates the architecture using a barrel shifter, as shifting is the basic operation required by all the processors. The generic architecture proposed in this book for a deterministic completion detection scheme for bundled data circuits will facilitate researchers in considering the asynchronous design style for developing digital circuits.

Download or read book Designing Asynchronous Circuits Using NULL Convention Logic NCL written by Scott C. Smith and published by Morgan & Claypool Publishers. This book was released on 2009 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: Designing Asynchronous Circuits using NULL Convention Logic (NCL) begins with an introduction to asynchronous (clockless) logic in general, and then focuses on delay-insensitive asynchronous logic design using the NCL paradigm. The book details design of input-complete and observable dual-rail and quad-rail combinational circuits, and then discusses implementation of sequential circuits, which require datapath feedback. Next, throughput optimization techniques are presented, including pipelining, embedding registration, early completion, and NULL cycle reduction. Subsequently, low-power design techniques, such as wavefront steering and Multi-Threshold CMOS (MTCMOS) for NCL, are discussed. The book culminates with a comprehensive design example of an optimized Greatest Common Divisor circuit. Readers should have prior knowledge of basic logic design concepts, such as Boolean algebra and Karnaugh maps. After studying this book, readers should have a good understanding of the differences between asynchronous and synchronous circuits, and should be able to design arbitrary NCL circuits, optimized for area, throughput, and power. Table of Contents: Introduction to Asynchronous Logic / Overview of NULL Convention Logic (NCL) / Combinational NCL Circuit Design / Sequential NCL Circuit Design / NCL Throughput Optimization / Low-Power NCL Design / Comprehensive NCL Design Example

Download or read book Design Automation of Real Life Asynchronous Devices and Systems written by Alexander Taubin and published by Now Publishers Inc. This book was released on 2007 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: The number of gates on a chip is quickly growing toward and beyond the one billion mark. Keeping all the gates running at the beat of a single or a few rationally related clocks is becoming impossible. In static timing analysis process variations and signal integrity issues stretch the timing margins to the point where they become too conservative and result in significant overdesign. Importance and difficulty of such problems push some developers to once again turn to asynchronous alternatives. However, the electronics industry for the most part is still reluctant to adopt asynchronous design (with a few notable exceptions) due to a common belief that we still lack a commercial-quality Electronic Design Automation tools (similar to the synchronous RTL-to-GDSII flow) for asynchronous circuits. The purpose of this paper is to counteract this view by presenting design flows that can tackle large designs without significant changes with respect to synchronous design flow. We are limiting ourselves to four design flows that we believe to be closest to this goal. We start from the Tangram flow, because it is the most commercially proven and it is one of the oldest from a methodological point of view. The other three flows (Null Convention Logic, de-synchronization, and gate-level pipelining) could be considered together as asynchronous re-implementations of synchronous (RTL- or gate-level) specifications. The main common idea is substituting the global clocks by local synchronizations. Their most important aspect is to open the possibility to implement large legacy synchronous designs in an almost "push button" manner, where all asynchronous machinery is hidden, so that synchronous RTL designers do not need to be re-educated. These three flows offer a trade-off from very low overhead, almost synchronous implementations, to very high performance, extremely robust dual-rail pipelines.

Download or read book Asynchronous Circuits written by Janusz A. Brzozowski and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, there has been a great surge of interest in asynchronous circuits, largely through the development of new asynchronous design methodologies. This book provides a comprehensive theory of asynchronous circuits, including modelling, analysis, simulation, specification, verification, and an introduction to their design.

Download or read book Algorithms for Synthesis and Testing of Asynchronous Circuits written by Luciano Lavagno and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the second half of the 1980s asynchronous circuits have been the subject of a great deal of research following a period of relative oblivion. The lack of interest in asynchronous techniques was motivated by the progressive shift towards synchronous design techniques that had much more structure and were much easier to verify and synthesize. System design requirements made it impossible to eliminate totally the use of asynchronous circuits. Given the objective difficulty encountered by designers, the asynchronous components of electronic systems such as interfaces became a serious bottleneck in the design process. The use of new models and some theoretical breakthroughs made it possible to develop asynchronous design techniques that were reliable and effective. This book describes a variety of mathematical models and of algorithms that form the backbone and the body of a new design methodology for asyn chronous design. The book is intended for asynchronous hardware designers, for computer-aided tool experts, and for digital designers interested in ex ploring the possibility of designing asynchronous circuits. It requires a solid mathematical background in discrete event systems and algorithms. While the book has not been written as a textbook, nevertheless it could be used as a reference book in an advanced course in logic synthesis or asynchronous design.

Download or read book Asynchronous Circuit Simulation and Design Methodologies written by Michael Hevery and published by . This book was released on 1999 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this thesis is to examine asynchronous design as a possible alternative to synchronous design. Defines the reasons why the current sensing is not a feasible way for completion detection, and the ability to predict the asynchronous system behavior on an architectural level.

Download or read book Asynchronous Circuit Design for VLSI Signal Processing written by Teresa H. Meng and published by Springer Science & Business Media. This book was released on 2011-06-27 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: Asynchronous Circuit Design for VLSI Signal Processing is a collection of research papers on recent advances in the area of specification, design and analysis of asynchronous circuits and systems. This interest in designing digital computing systems without a global clock is prompted by the ever growing difficulty in adopting global synchronization as the only efficient means to system timing. Asynchronous circuits and systems have long held interest for circuit designers and researchers alike because of the inherent challenge involved in designing these circuits, as well as developing design techniques for them. The frontier research in this area can be traced back to Huffman's publications `The Synthesis of Sequential Switching Circuits' in 1954 followed by Unger's book, `Asynchronous Sequential Switching Circuits' in 1969 where a theoretical foundation for handling logic hazards was established. In the last few years a growing number of researchers have joined force in unveiling the mystery of designing correct asynchronous circuits, and better yet, have produced several alternatives in automatic synthesis and verification of such circuits. This collection of research papers represents a balanced view of current research efforts in the design, synthesis and verification of asynchronous systems.

Download or read book Asynchronous Digital Circuit Design written by Graham Birtwistle and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the costs of power and timing become increasingly difficult to manage in traditional synchronous systems, designers are being forced to look at asynchronous alternatives. Based on reworked and expanded papers from the VII Banff Higher Order Workshop, this volume examines asynchronous methods which have been used in large circuit design, ranging from initial formal specification to more standard finite state machine based control models. Written by leading practitioners in the area, the papers cover many aspects of current practice including practical design, silicon compilation, and applications of formal specification. It also includes a state-of-the-art survey of asynchronous hardware design. The resulting volume will be invaluable to anyone interested in designing correct asynchronous circuits which exhibit high performance or low power operation.

Download or read book Principles of Asynchronous Circuit Design written by Jens Sparsø and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Principles of Asynchronous Circuit Design - A Systems Perspective addresses the need for an introductory text on asynchronous circuit design. Part I is an 8-chapter tutorial which addresses the most important issues for the beginner, including how to think about asynchronous systems. Part II is a 4-chapter introduction to Balsa, a freely-available synthesis system for asynchronous circuits which will enable the reader to get hands-on experience of designing high-level asynchronous systems. Part III offers a number of examples of state-of-the-art asynchronous systems to illustrate what can be built using asynchronous techniques. The examples range from a complete commercial smart card chip to complex microprocessors. The objective in writing this book has been to enable industrial designers with a background in conventional (clocked) design to be able to understand asynchronous design sufficiently to assess what it has to offer and whether it might be advantageous in their next design task.

Download or read book Introduction to Asynchronous Circuit Design written by Jens Sparsø and published by . This book was released on 2020-06-18 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an introduction to the design of asynchronous circuits. It is an updated and significantly extended version of an eight-chapter tutorial that first appeared as Part I in the book "Principles of asynchronous circuit design -- A systems perspective" edited by Sparsø and Furber (2001); a book that has become a standard reference on the topic. The extensions include improved coverage of data-flow components, a new chapter on two-phase bundled-data circuits, a new chapter on metastability, arbitration, and synchronization, and a new chapter on performance analysis using timed Petri nets. With these extensions, the text now provides a more complete coverage of the topic, and it is now made available as a stand-alone book. The book is a beginner's text and the amount of formal notation is deliberately kept at a minimum, using instead plain English and graphical illustrations to explain the underlying intuition and reasoning behind the concepts and methods covered. The book targets senior undergraduate and graduate students in Electrical and Computer Engineering and industrial designers with a background in conventional (clocked) digital design who wish to gain an understanding of asynchronous circuit design.

Download or read book Complete State Coding of Timed Asynchronous Circuits written by Christopher D. Krieger and published by . This book was released on 2002 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Implementation of Variable Latency Adders in Asynchronous Circuits written by Ali Sayyed and published by LAP Lambert Academic Publishing. This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Asynchronous circuit design is enjoying resurgence in the digital world, with many recent technical and practical advancements and improvements. The advantages of asynchronous systems over synchronous systems are promising. The opportunity to implement high performance data-paths is very attractive by exploiting the fact that most data-path modules have data dependent delays. In other words they compute the result faster than worst case under many input combinations. Therefore making the common case fast, asynchronous data-paths have the potential to outperform synchronous designs on average inputs. This book explains the performance advantage that can be achieved by dynamically selecting the matched delay in a bundled-data setting. It presents the implementation and analysis of a method for the design of high performance asynchronous adders called "speculative completion" on six different 32 and 16 bit adders. The analysis on random data indicates that speculative completion yields significant performance improvements. The book describes the implementation details and the comparisons of results along with the final conclusions.

Download or read book Asynchronous Circuit Design written by Chris J. Myers and published by John Wiley & Sons. This book was released on 2004-04-05 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: With asynchronous circuit design becoming a powerful tool in thedevelopment of new digital systems, circuit designers are expectedto have asynchronous design skills and be able to leverage them toreduce power consumption and increase system speed. This book walksreaders through all of the different methodologies of asynchronouscircuit design, emphasizing practical techniques and real-worldapplications instead of theoretical simulation. The only guide ofits kind, it also features an ftp site complete with supportmaterials. Market: Electrical Engineers, Computer Scientists, DeviceDesigners, and Developers in industry. An Instructor Support FTP site is available from the Wileyeditorial department.

Download or read book Logic Synthesis for Asynchronous Controllers and Interfaces written by J. Cortadella and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 279 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the result of a long friendship, of a broad international co operation, and of a bold dream. It is the summary of work carried out by the authors, and several other wonderful people, during more than 15 years, across 3 continents, in the course of countless meetings, workshops and discus sions. It shows that neither language nor distance can be an obstacle to close scientific cooperation, when there is unity of goals and true collaboration. When we started, we had very different approaches to handling the mys terious, almost magical world of asynchronous circuits. Some were more theo retical, some were closer to physical reality, some were driven mostly by design needs. In the end, we all shared the same belief that true Electronic Design Automation research must be solidly grounded in formal models, practically minded to avoid excessive complexity, and tested "in the field" in the form of experimental tools. The results are this book, and the CAD tool petrify. The latter can be downloaded and tried by anybody bold (or desperate) enough to tread into the clockless (but not lawless) domain of small-scale asynchronicity. The URL is http://www.lsi. upc. esr j ordic/petrify. We believe that asynchronous circuits are a wonderful object, that aban dons some of the almost militaristic law and order that governs synchronous circuits, to improve in terms of simplicity, energy efficiency and performance.

Download or read book Emerging Topics in Hardware Security written by Mark Tehranipoor and published by Springer Nature. This book was released on 2021-04-30 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an overview of emerging topics in the field of hardware security, such as artificial intelligence and quantum computing, and highlights how these technologies can be leveraged to secure hardware and assure electronics supply chains. The authors are experts in emerging technologies, traditional hardware design, and hardware security and trust. Readers will gain a comprehensive understanding of hardware security problems and how to overcome them through an efficient combination of conventional approaches and emerging technologies, enabling them to design secure, reliable, and trustworthy hardware.

Download or read book Test and Side channel Analysis of Asynchronous Circuits written by Ricardo Aquino guazzelli and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Asynchronous circuits have been explored in the last decades as an alternative to overcome the issues and limitations brought by synchronous design, especially as recent technology nodes reach physical limits and process, voltage and temperature (PVT) variations significantly impact circuit behavior.This pushes forward the use of asynchronous circuits on different applications requiring high-speed, low-power consumption, robustness or security.Due to their non-conventional design style, it is not so trivial to design them.Indeed, asynchronous design is marginally taught in engineering schools and its design flow is not fully compatible with commercial tools, which were originally developed for synchronous implementations.Therefore, several methodologies and techniques have been introduced to help its adoption by industry.However, the well-established synchronous design flow impedes alternative design paradigms and even creates resistance to further develop a fully automated and optimized design flow for asynchronous circuits.As a side effect, this also impacts the effort to develop testing and diagnosis techniques for this kind of circuits.In this context, this thesis targets dedicated techniques for testing and analyzing asynchronous circuits.A first part presents a Design-for-Testability (DFT) architecture enabling at-speed testing on asynchronous Bundled-data (BD) circuits, while maintaining low area overhead and compatibility with DfT and Automatic Test Pattern Generation (ATPG) tools.The proposed architecture has been successfully implemented in two study-case circuits in order to show the technical details through synthesis and ATPG steps, as well as overview the results such as fault coverage and area overhead.The second part explores side-channel analysis on asynchronous circuits, taking advantage of their current signature and intrinsic behavior.This has been applied to Hardware Trojan (HT) detection.Through simulation experiments, it is shown the ability of asynchronous circuits in providing local current signatures for identifying the presence of tiny HTs.The results demonstrate that a dozen-transistor HT is detectable in 13.000-transistor design. Moreover, such analysis does not require extra circuitry or extra power ports.

Download or read book Embedded Cryptographic Hardware written by Nadia Nedjah and published by Nova Publishers. This book was released on 2005 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data security is an important requirement for almost all, if not all, information-oriented applications such as e-commerce, digital signature, secure Internet, etc. All these services use encrypted data. Cryptography is a milliner science that was the key to the secret of ancient Rome and a fundamental piece in the Second World War. Today, it is a star in the computation world. Several operating systems, data base systems or simple filling systems provide the user with cryptographic functions that allow controlled data scrambling. Modern cryptology, which is the basis of information security techniques, started in the late 1970's and developed in the 1980's. As communication networks were spreading deep into society, the need for secure communication greatly promoted cryptographic research. The need for fast but secure cryptographic systems is growing bigger. Therefore, dedicated hardware for cryptography is becoming a key issue for designers. With the spread of reconfigurable hardware such as FPGAs, hardware implementations of cryptographic algorithms became cost-effective. The focus of this book is on all aspects of cryptographic hardware and embedded systems. This includes design, implementation and security of such systems. The content of this book is divided into four main parts, each of which is organised in three chapters, with the exception of the last one.