Asynchronous Circuits

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Asynchronous Circuits

Author : Janusz A. Brzozowski
ISBN : 9781461242109
Genre : Technology & Engineering
File Size : 37.65 MB
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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.
Category: Technology & Engineering

Designing Asynchronous Circuits Using Null Convention Logic Ncl

Author : Scott C. Smith
ISBN : 9781598299816
Genre : Technology & Engineering
File Size : 75.84 MB
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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
Category: Technology & Engineering

Principles Of Asynchronous Circuit Design

Author : Jens Sparsø
ISBN : 0792376137
Genre : Computers
File Size : 50.14 MB
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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.
Category: Computers

Asynchronous Circuit Design

Author : Chris J. Myers
ISBN : 9780471464129
Genre : Technology & Engineering
File Size : 48.16 MB
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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.
Category: Technology & Engineering

Algorithms For Synthesis And Testing Of Asynchronous Circuits

Author : Luciano Lavagno
ISBN : 0792393643
Genre : Computers
File Size : 85.48 MB
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The design of asynchronous circuits is increasingly important in solving problems such as complexity management, modularity, power consumption and clock distribution in large digital integrated circuits.
Category: Computers

Digital Logic Design

Author : Brian Holdsworth
ISBN : 9780080477305
Genre : Technology & Engineering
File Size : 83.15 MB
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New, updated and expanded topics in the fourth edition include: EBCDIC, Grey code, practical applications of flip-flops, linear and shaft encoders, memory elements and FPGAs. The section on fault-finding has been expanded. A new chapter is dedicated to the interface between digital components and analog voltages. *A highly accessible, comprehensive and fully up to date digital systems text *A well known and respected text now revamped for current courses *Part of the Newnes suite of texts for HND/1st year modules
Category: Technology & Engineering

Integrated Circuit And System Design Power And Timing Modeling Optimization And Simulation

Author : Lars Svensson
ISBN : 9783540959472
Genre : Computers
File Size : 73.34 MB
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This book constitutes the thoroughly refereed post-conference proceedings of 18th International Workshop on Power and Timing Modeling, Optimization and Simulation, PATMOS 2008, featuring Integrated Circuit and System Design, held in Lisbon, Portugal during September 10-12, 2008. The 31 revised full papers and 10 revised poster papers presented together with 3 invited talks and 4 papers from a special session on reconfigurable architectures were carefully reviewed and selected from numerous submissions. The papers are organized in topical sections on low-leakage and subthreshold circuits, low-power methods and models, arithmetic and memories, variability and statistical timing, synchronization and interconnect, power supplies and switching noise, low-power circuits; reconfigurable architectures, circuits and methods, power and delay modeling, as well as power optimizations addressing reconfigurable architectures.
Category: Computers

Designing Asynchronous Circuits In Gallium Arsenide

Author :
ISBN : OCLC:1050615590
Genre :
File Size : 76.45 MB
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Most lost of the digital design done today is "synchronous" that is a global synchronization signal is used to get the different parts to work in lockstep. It is simple and elegant and requires little circuit overhead. Yet as VLSI circuits increase in size and complexity. distributing global signals becomes more delicate, timing assumptions are harder to guarantee; at the system level, the global clock has to be slowed down to accommodate the slowest parts. It is interesting at this point, to consider asynchronous circuits where the time can be eliminated from the specification. A circuit is speed-independent when its correct operation is independent of delays operators circuit is delay-insensitive when its correct operation is independent of the delays in operators and wires except that the delays be finite [Sei80] [vdS85]. No global synchronization signal or knowledge about delays is used. As a subclass of asynchronous circuits delay-insensitive circuits are very interesting for formal design methods; we can reason about the correctness of such circuits independently of timing. Our research group has developed a synthesis method to compile a high level description of a circuit down to a gate level description [Mar86] [Mar90]. This compilation is largely technology- independent; only at the stage of sizing transistors for better performance do we have to look at the actual transistor network.
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Logic Synthesis For Asynchronous Controllers And Interfaces

Author : Jordi Cortadella
ISBN : 3540431527
Genre : Computers
File Size : 76.74 MB
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This book is devoted to logic synthesis and design techniques for asynchronous circuits. It uses the mathematical theory of Petri Nets and asynchronous automata to develop practical algorithms implemented in a public domain CAD tool. Asynchronous circuits have so far been designed mostly by hand, and are thus much less common than their synchronous counterparts, which have enjoyed a high level of design automation since the mid-1970s. Asynchronous circuits, on the other hand, can be very useful to tackle clock distribution, modularity, power dissipation and electro-magnetic interference in digital integrated circuits. This book provides the foundation needed for CAD-assisted design of such circuits, and can also be used as the basis for a graduate course on logic design.
Category: Computers

Field Programmable Logic And Applications

Author : Manfred Glesner
ISBN : 9783540441083
Genre : Computers
File Size : 90.11 MB
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This book is the proceedings volume of the 12th International Conference on Field-ProgrammableLogicandApplications(FPL)heldonSeptember2 4,2002. The conference was hosted by the Laboratoired Informatique, de Robotique et de Micro electronique de Montpellier (LIRMM), France. The FPL conference covered areas like recon?gurable logic and recon?gurable computing, as well as their application in various areas like DSP, communication and cryptography. Its subtitle Recon?gurable Computing Is Going Mainstream emphasizes the extensive role recon?gurablelogic has started to play. The annual FPL series is the oldest international conference in the world covering con?gware and all its aspects (also see: http: //www.fpl.org). It was foundedin1991atOxfordUniversity(UK)andistwoyearsolderthanitstwo most important competitors, which usually take place in Monterey and Napa. FPLhasbeenheldinOxford(threetimes), Vienna, Prague, Darmstadt, London, Tallinn, Glasgow, Villach, and Belfast. It brings together experts, users, and newcomers from industry and academia in an informal, social, and productive atmosphere that encourages stimulating and pro?table interaction between the participants. Covered topics. The scope of this conference has been substantially - tended over the past years and today also covers evolvable and adaptable s- tems, coarse-grainrecon?gurable(sub)systems, theirsynthesismethods and- plications, andtheirindispensableroleinSystem-on-a-Chip(SoC)development, aswellasrecon?gurablecomputing(RC)asanemergingnewparadigm, thre- ening to shakethe generalfoundations ofcomputer science: computing in space vs. computing in time. The application of ?eld-programmable logic in di?- ent areas has gained increasing importance also, and the number of according submissions has grown."
Category: Computers

Digital Logic And Design And Application

Author : A.P.Godse
ISBN : 8184314752
Genre :
File Size : 20.96 MB
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Number Systems Decimal, Binary, Octal and hexadecimal number system and conversion, Number system's application e.g. shaft encoding, Binary weighted codes, Signed number binary order, 1's and 2's complement codes, All number system's arithmetic.Boolean Algebra : Binary logic functions, Boolean laws, Truth tables, Associative and distributive properties, DeMorgan's theorem, Realization of switching functions using logic gates. Combinational Logic Switching equations, Canonical logic forms, Sum of product & product of sum, Karnaugh maps, Two, three and four variable Karnaugh graph, Simplification of expression, Quine McCluskey minimization techniques, Mixed logic combinational circuits, Multiple output functions. Analysis and Design of Combinational Logic Combinational circuits, Multiplexer and demultiplexer, Multiplexers as function generator, Binary adder, Substractor, BCD adder, Binary comparator with physical applications, Arithmetic and logic units, Design of combinational circuits using statements. Sequential Logic Sequential circuits, Flip-flop conversions, Clocked and edge triggered flip-flops timing specifications, Timing analysis, State diagrams and tables, Transition tables, Excitation table and equations, Examples using flip-flops. Sequential Circuits Simple synchronous and asynchronous sequential circuit analysis, Different types of counters asynchronous and synchronous, Counter design with state equations, Registers, Different types of shift registers, Construction of state diagram and counter design. Digital Integrated Circuits Digital circuit logic levels, Propagation delay times, Power dissipation, Fan out and Fan in, Noise margin for popular logic families, TTL, TTL sub families, CMOS and their performance comparison
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Seventh International Symposium On Asynchronous Circuits And Systems Async 2001

Author :
ISBN : 0769510345
Genre : Technology & Engineering
File Size : 62.11 MB
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Comprises 20 papers selected for presentation at the Async 2001 conference in March 2001, as well as three invited presentations from industry researchers. Papers were divided into seven sessions: systems/arithmetic; experiments; synthesis and verification; handshaking; communication; architecture; and performance analysis and optimization. The invited talks are titled Asynchronous Design and the Pursuit of Low Power; Where Are the Async Millionaires?; and Testing Asynchronous Circuits: Help Is on the Way! Indexed by author but not by subject. c. Book News Inc.
Category: Technology & Engineering

Integrated Circuit And System Design Power And Timing Modeling Optimization And Simulation

Author : José Monteiro
ISBN : 9783642118012
Genre : Computers
File Size : 89.48 MB
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Welcome to the proceedings of the 19th International Workshop on Power and TimingModeling, OptimizationandSimulation, PATMOS2009.Overtheyears, PATMOShasevolvedintoanimportantEuropeanevent, whereresearchersfrom both industry and academia discuss and investigate the emerging challenges in future and contemporary applications, design methodologies, and tools required for the development of the upcoming generations of integrated circuits and s- tems. PATMOS 2009 was organized by TU Delft, The Netherlands, with sp- sorship by the NIRICT Design Lab and Cadence Design Systems, and technical co-sponsorshipbytheIEEE.Furtherinformationabouttheworkshopisavailable athttp: //ens.ewi.tudelft.nl/patmos09. The technical programof PATMOS 2009 contained state-of-the-arttechnical contributions, three invited keynotes, and a special session on SystemC-AMS Extensions. The technical program focused on timing, performance, and power consumption, as well as architectural aspects with particular emphasis on m- eling, design, characterization, analysis, and optimization in the nanometer era. The Technical Program Committee, with the assistance of additional expert reviewers, selected the 36 papers presented at PATMOS. The papers were - ganized into 7 oral sessions (with a total of 26 papers) and 2 poster sessions (with a total of 10 papers). As is customary for the PATMOS workshops, full papers were required for review, and a minimum of three reviews were received per manuscr
Category: Computers

Async 2005

Author : Institute of Electrical and Electronics Engineers, Inc. Staff
ISBN : 0769523056
Genre : Asynchronous circuits
File Size : 86.98 MB
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ASYNC 2005 covers a range of topics from formal verification to the design of a complex asynchronous SoC. Its papers look into wide-ranging areas covering circuit techniques, on-chip networks, clocking and synchronization, test and reliability, design implementations, design analysis, and synthesis and encoding.
Category: Asynchronous circuits