Download or read book Asynchronous Sequential Switching Circuits written by Stephen H. Unger and published by . This book was released on 1983 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Delay Free Realization of Asynchronous Sequential Switching Circuits written by Richard Louis Duncan and published by . This book was released on 1972 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Asynchronous sequential circuits are sequential circuits which are free of a synchronizing clock signal. Asynchronous circuits allow the circuit designer to use the maximum available speed of his devices; however, the lack of synchronism may cause problems in the operation of some circuits. Unwanted output changes, or hazards, may occur in the output due to different parts of the circuit switching at different times. Hazards occurring in the feedback variables, or a race between two variables could cause the circuit to make a transition to a different state than the desired one. (Author).

Download or read book Design of Asynchronous Sequential Switching Circuits written by Victor Ho Leung Ng and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis of Asynchronous Sequential Switching Circuits written by Chung Jen Tan and published by . This book was released on 1969 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Asynchronous Operators of Sequential Logic Venjunction Sequention written by Vadim Vasyukevich and published by Springer Science & Business Media. This book was released on 2011-06-18 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is dedicated to new mathematical instruments assigned for logical modeling of the memory of digital devices. The case in point is logic-dynamical operation named venjunction and venjunctive function as well as sequention and sequentional function. Venjunction and sequention operate within the framework of sequential logic. In a form of the corresponding equations, they organically fit analytical expressions of Boolean algebra. Thus, a sort of symbiosis is formed using elements of asynchronous sequential logic on the one hand and combinational logic on the other hand. So, asynchronous logic is represented in the form of enhanced Boolean logic. The book contains initial concepts, fundamental definitions, statements, principles and rules needed for theoretical justification of the mathematical apparatus and its validity for asynchronous logic. Asynchronous operators named venjunctor and sequentor are designed for practical implementation. These basic elements are assigned for realizing of memory functions in sequential circuits. Present research work is the final stage of generalization and systematization of all those ideas and investigations, author’s interest to which alternately flashed up and faded over many years and for various reasons until formed “critical mass”, and all findings were arranged definitively as a mathematical basis of a theory appropriately associated under a common theme – asynchronous sequential logic, essentially classified as switching logic, which falls into category of algebraic logics.

Download or read book Decomposition of Asynchronous Sequential Switching Circuits written by Larry Lee Kinney and published by . This book was released on 1968 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Determination of Single transition time State Assignments for Asynchronous Sequential Switching Circuits written by Henry Edward Westendorf and published by . This book was released on 1973 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Delay Free Realization of Asynchronous Sequential Switching Circuits Using Constrained Gate Delay Ratios written by Steven Robert Palmquist and published by . This book was released on 1973 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: Asynchronous sequential circuits are sequential circuits which do not make use of a synchronizing clock signal. Such asynchronous circuits often fail to perform as predicted by their Boolean descriptions. This is due to the fact that physical switching elements exhibit inertial and stray delays which may cause a network to produce transient outputs unpredictable by Boolean algebra. Circuit malfunctions of this type are referred to as various forms of hazards. Existing methods for elimination of the effects of various types of combinational and sequential hazards may introduce new problems or simply be tedious to use. For example, the effects of combinational hazards can be eliminated by introducing redundant gates. It is the purpose of the paper to demonstrate methods of solving these problems using a knowledge of constrained maximum and minimum gate delays.

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 Minimum Transition Time State Assignment Methods for Asynchronous Sequential Switching Circuits written by James Henry Tracey and published by . This book was released on 1964 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Simplified State Assignment Method for Asynchronous Sequential Machines written by James William Ananias and published by . This book was released on 1961 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sequential switching circuits are generally categorized as being either synchronous or asynchronous circuits. Synchronous circuits are those which employ a timing or 'clock' signal to trigger circuit state changes. Asynchronous circuit state changes occur in response to input changes only. Output changes of these circuits are delayed from input changes by simply the switching time of the circuit elements and hence these circuits are capable of the ultimate in sequential circuit speed. Since asynchronous circuits are activated by input changes, unequal circuit path delays could result in undesired internal state transitions which in turn would result in faculty circuit operation. It is, therefore, necessary for asynchronous circuits to be free of such undesired internal state transitions for reliable operation. (Author).

Download or read book An Algorithm for Synthesis of Asynchronous Sequential Circuits written by John S. Tripp and published by . This book was released on 1966 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book On the Average Switching Rates of Combinational and Asynchronous Sequential Switching Circuits written by Ronald Joseph Angner and published by . This book was released on 1972 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The State Variable Assignment Problem for Asynchronous Sequential Switching Circuits written by Chao-ning Liu and published by . This book was released on 1961 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Switching and Finite Automata Theory written by Zvi Kohavi and published by Tata McGraw-Hill Education. This book was released on 1978 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: Number systems and codes; Sets, relations and lattices; Combinational logic; Switching algebra its applications; Minimization of switching functions; Logical design; Functional decomposition and symmetric functions; Threshold logic; Reliable design and fault diagnosis; Finite-state machines; Introduction to synchronous sequential circuits and iterative networks; Capabilities, minimization and transformation of sequential machines; Asynchronous sequential circuits; Structure of sequential machines; Statae-identification and fault-detection experiments; Memory, definiteness, and information losslessness of finite automata; Linear sequential machines; Finite-state recognizers; Index.

Download or read book Logic Circuit Design written by Shimon P. Vingron and published by Springer Science & Business Media. This book was released on 2012-03-30 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: In three main divisions the book covers combinational circuits, latches, and asynchronous sequential circuits. Combinational circuits have no memorising ability, while sequential circuits have such an ability to various degrees. Latches are the simplest sequential circuits, ones with the shortest memory. The presentation is decidedly non-standard. The design of combinational circuits is discussed in an orthodox manner using normal forms and in an unorthodox manner using set-theoretical evaluation formulas relying heavily on Karnaugh maps. The latter approach allows for a new design technique called composition. Latches are covered very extensively. Their memory functions are expressed mathematically in a time-independent manner allowing the use of (normal, non-temporal) Boolean logic in their calculation. The theory of latches is then used as the basis for calculating asynchronous circuits. Asynchronous circuits are specified in a tree-representation, each internal node of the tree representing an internal latch of the circuit, the latches specified by the tree itself. The tree specification allows solutions of formidable problems such as algorithmic state assignment, finding equivalent states non-recursively, and verifying asynchronous circuits.

Download or read book Asynchronous Sequential Machine Design and Analysis written by Richard F. Tinder and published by Morgan & Claypool Publishers. This book was released on 2009 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt: Asynchronous Sequential Machine Design and Analysis provides a lucid, in-depth treatment of asynchronous state machine design and analysis presented in two parts: Part I on the background fundamentals related to asynchronous sequential logic circuits generally, and Part II on self-timed systems, high-performance asynchronous programmable sequencers, and arbiters. Part I provides a detailed review of the background fundamentals for the design and analysis of asynchronous finite state machines (FSMs). Included are the basic models, use of fully documented state diagrams, and the design and characteristics of basic memory cells and Muller C-elements. Simple FSMs using C-elements illustrate the design process. The detection and elimination of timing defects in asynchronous FSMs are covered in detail. This is followed by the array algebraic approach to the design of single-transition-time machines and use of CAD software for that purpose, one-hot asynchronous FSMs, and pulse mode FSMs. Part I concludes with the analysis procedures for asynchronous state machines. Part II is concerned mainly with self-timed systems, programmable sequencers, and arbiters. It begins with a detailed treatment of externally asynchronous/internally clocked (or pausable) systems that are delay-insensitive and metastability-hardened. This is followed by defect-free cascadable asynchronous sequencers, and defect-free one-hot asynchronous programmable sequencers--their characteristics, design, and applications. Part II concludes with arbiter modules of various types, those with and without metastability protection, together with applications. Presented in the appendices are brief reviews covering mixed-logic gate symbology, Boolean algebra, and entered-variable K-map minimization. End-of-chapter problems and a glossary of terms, expressions, and abbreviations contribute to the reader's learning experience. Five productivity tools are made available specifically for use with this text and briefly discussed in the Preface. Table of Contents: I: Background Fundamentals for Design and Analysis of Asynchronous State Machines / Introduction and Background / Simple FSM Design and Initialization / Detection and Elimination of Timing Defects in Asynchronous FSMs / Design of Single Transition Time Machines / Design of One-Hot Asynchronous FSMs / Design of Pulse Mode FSMs / Analysis of Asynchronous FSMs / II: Self-Timed Systems/ Programmable Sequencers, and Arbiters / Externally Asynchronous/Internally Clocked Systems / Cascadable Asynchronous Programmable Sequencers (CAPS) and Time-Shared System Design / Asynchronous One-Hot Programmable Sequencer Systems / Arbiter Modules