Download or read book Delay Modeling for Functional Timing Analysis written by V. Chandramouli and published by . This book was released on 1998 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Static Timing Analysis for Nanometer Designs written by J. Bhasker and published by Springer Science & Business Media. This book was released on 2009-04-03 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: iming, timing, timing! That is the main concern of a digital designer charged with designing a semiconductor chip. What is it, how is it T described, and how does one verify it? The design team of a large digital design may spend months architecting and iterating the design to achieve the required timing target. Besides functional verification, the t- ing closure is the major milestone which dictates when a chip can be - leased to the semiconductor foundry for fabrication. This book addresses the timing verification using static timing analysis for nanometer designs. The book has originated from many years of our working in the area of timing verification for complex nanometer designs. We have come across many design engineers trying to learn the background and various aspects of static timing analysis. Unfortunately, there is no book currently ava- able that can be used by a working engineer to get acquainted with the - tails of static timing analysis. The chip designers lack a central reference for information on timing, that covers the basics to the advanced timing veri- cation procedures and techniques.

Download or read book Integrated Circuit and System Design Power and Timing Modeling Optimization and Simulation written by Johan Vounckx and published by Springer Science & Business Media. This book was released on 2006-09-08 with total page 691 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 16th International Workshop on Power and Timing Modeling, Optimization and Simulation, PATMOS 2006. The book presents 41 revised full papers and 23 revised poster papers together with 4 key notes and 3 industrial abstracts. Topical sections include high-level design, power estimation and modeling memory and register files, low-power digital circuits, busses and interconnects, low-power techniques, applications and SoC design, modeling, and more.

Download or read book Logic timing Simulation and the Degradation Delay Model written by Manuel J. Bellido and published by Imperial College Press. This book was released on 2006 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides the reader with an extensive background in the field of logic-timing simulation and delay modeling. It includes detailed information on the challenges of logic-timing simulation, applications, advantages and drawbacks. The capabilities of logic-timing are explored using the latest research results that are brought together from previously disseminated materials. An important part of the book is devoted to the description of the ?Degradation Delay Model?, developed by the authors, showing how the inclusion of dynamic effects in the modeling of delays greatly improves the application cases and accuracy of logic-timing simulation. These ideas are supported by simulation results extracted from a wide range of practical applications.Sample Chapter(s)

Download or read book Timing written by Sachin Sapatnekar and published by Springer Science & Business Media. This book was released on 2007-05-08 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: Statistical timing analysis is an area of growing importance in nanometer te- nologies‚ as the uncertainties associated with process and environmental var- tions increase‚ and this chapter has captured some of the major efforts in this area. This remains a very active field of research‚ and there is likely to be a great deal of new research to be found in conferences and journals after this book is published. In addition to the statistical analysis of combinational circuits‚ a good deal of work has been carried out in analyzing the effect of variations on clock skew. Although we will not treat this subject in this book‚ the reader is referred to [LNPS00‚ HN01‚ JH01‚ ABZ03a] for details. 7 TIMING ANALYSIS FOR SEQUENTIAL CIRCUITS 7.1 INTRODUCTION A general sequential circuit is a network of computational nodes (gates) and memory elements (registers). The computational nodes may be conceptualized as being clustered together in an acyclic network of gates that forms a c- binational logic circuit. A cyclic path in the direction of signal propagation 1 is permitted in the sequential circuit only if it contains at least one register . In general, it is possible to represent any sequential circuit in terms of the schematic shown in Figure 7.1, which has I inputs, O outputs and M registers. The registers outputs feed into the combinational logic which, in turn, feeds the register inputs. Thus, the combinational logic has I + M inputs and O + M outputs.

Download or read book Modeling of Deterministic Within die Variation in Timing Analysis Leakage Current Analysis and Delay Fault Diagnosis written by Munkang Choi and published by . This book was released on 2007 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt: To determine how these within-die variations impact circuit performance, a new analysis tool is required. Thus a methodology has been proposed to involve layout-dependent within-die variations in static timing analysis. The methodology combines a set of scripts and commercial tools to analyze a full chip. The tool has been applied to analyze delay of ISCAS85 benchmark circuits in the presence of imperfect lithography and CMP variation.

Download or read book Integrated Circuit and System Design Power and Timing Modeling Optimization and Simulation written by Jorge Juan Chico and published by Springer Science & Business Media. This book was released on 2003-09-03 with total page 647 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 13th International Workshop on Power and Timing Modeling, Optimization and Simulation, PATMOS 2003, held in Torino, Italy in September 2003. The 43 revised full papers and 18 revised poster papers presented together with three keynote contributions were carefully reviewed and selected from 85 submissions. The papers are organized in topical sections on gate-level modeling and characterization, interconnect modeling and optimization, asynchronous techniques, RTL power modeling and memory optimization, high-level modeling, power-efficient technologies and designs, communication modeling and design, and low-power issues in processors and multimedia.

Download or read book Machine Learning Applications to Static Timing Analysis written by Waseem Mohamed Raslan and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Modeling complex cell behavior is critical for accurate static timing analysis. Effective current source model, ECSM, and composite current source, CCS, waveform data compression became a necessity to reduce the size of technology files and increase the accuracy of the cell characterization data. We used deep learning nonlinear Autoencoders to compress voltage and current waveforms and compared them with singular value decomposition, SVD, approach. Autoencoders gave ~1.67x compression ratio for voltage waveforms better than SVD approach and gave 45x to 55x better compression ratio compared to other lossless techniques like bz2 and gzip. Autoencoders achieved ~1.7x compression ratio for complex rising-edge current waveforms. However, SVD remains more computationally efficient than Autoencoders. Deep learning non-linear delay model, DL-NLDM, is proposed to replace the standard 7x7 non-linear delay modeling lookup tables, NLDM-LUT. The proposed DL-NLDM performed better than the standard 7x7 NLDM-LUT tables in percentage errors compared to SPICE simulation. In addition, deep learning waveform delay model, DL-WFDM, is proposed to radically change transition/delay propagation to a full waveform propagation that can be used to measure the delay or perform ECSM delay calculations. Obtaining accurate and less demanding computational reduced models is a continuous challenge for complex systems. We propose structured recurrent neural network, S-RNN, that can model LTI single-input-single-output, SISO, and multiple-input-multiple-output, MIMO systems of any order. We showed how to obtain the continuous time transfer function of the reduced system from the trained S-RNN weights. These S-RNN models outperformed other model order reduction techniques reported in selected literature.

Download or read book Timed Boolean Functions written by William K.C. Lam and published by Springer Science & Business Media. This book was released on 1994-04-30 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Timing research in high performance VLSI systems has advanced at a steady pace over the last few years, while tools, especially theoretical mechanisms, lag behind. Much present timing research relies heavily on timing diagrams, which, although intuitive, are inadequate for analysis of large designs with many parameters. Further, timing diagrams offer only approximations, not exact solutions, to many timing problems and provide little insight in the cases where temporal properties of a design interact intricately with the design's logical functionalities. This book presents a methodology for timing research which facilitates analy sis and design of circuits and systems in a unified temporal and logical domain. In the first part, we introduce an algebraic representation formalism, Timed Boolean Functions (TBF's), which integrates both logical and timing informa tion of digital circuits and systems into a single formalism. We also give a canonical form, TBF BDD's, for them, which can be used for efficient ma nipulation. In the second part, we apply Timed Boolean Functions to three problems in timing research, for which exact solutions are obtained for the first time: 1. computing the exact delays of combinational circuits and the minimum cycle times of finite state machines, 2. analysis and synthesis of wavepipelining circuits, a high speed architecture for which precise timing relations between signals are essential for correct operations, 3. verification of circuit and system performance and coverage of delay faults by testing.

Download or read book Integrating Functional and Temporal Domains in Logic Design written by Patrick C. McGeer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an extension of one author's doctoral thesis on the false path problem. The work was begun with the idea of systematizing the various solutions to the false path problem that had been proposed in the literature, with a view to determining the computational expense of each versus the gain in accuracy. However, it became clear that some of the proposed approaches in the literature were wrong in that they under estimated the critical delay of some circuits under reasonable conditions. Further, some other approaches were vague and so of questionable accu racy. The focus of the research therefore shifted to establishing a theory (the viability theory) and algorithms which could be guaranteed correct, and then using this theory to justify (or not) existing approaches. Our quest was successful enough to justify presenting the full details in a book. After it was discovered that some existing approaches were wrong, it became apparent that the root of the difficulties lay in the attempts to balance computational efficiency and accuracy by separating the tempo ral and logical (or functional) behaviour of combinational circuits. This separation is the fruit of several unstated assumptions; first, that one can ignore the logical relationships of wires in a network when considering timing behaviour, and, second, that one can ignore timing considerations when attempting to discover the values of wires in a circuit.

Download or read book Formal Methods in Computer Aided Design written by Ganesh Gopalakrishnan and published by Springer. This book was released on 2003-07-31 with total page 537 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the Second International Conference on Formal Methods in Computer-Aided Design, FMCAD '98, held in Palo Alto, California, USA, in November 1998. The 27 revised full papers presented were carefully reviewed and selected from a total of 55 submissions. Also included are four tools papers and four invited contributions. The papers present the state of the art in formal verification methods for digital circuits and systems, including processors, custom VLSI circuits, microcode, and reactive software. From the methodological point of view, binary decision diagrams, model checking, symbolic reasoning, symbolic simulation, and abstraction methods are covered.

Download or read book A Unified Approach for Timing Verification and Delay Fault Testing written by Mukund Sivaraman and published by Springer Science & Business Media. This book was released on 2012-09-17 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Large system complexities and operation under tight timing constraints in rapidly shrinking technologies have made it extremely important to ensure correct temporal behavior of modern-day digital circuits, both before and after fabrication. Research in (pre-fabrication) timing verification and (post-fabrication) delay fault testing has evolved along largely disjoint lines in spite of the fact that they share many basic concepts. A Unified Approach for Timing Verification and Delay Fault Testing applies concepts developed in the context of delay fault testing to path sensitization, which allows an accurate timing analysis mechanism to be developed. This path sensitization strategy is further applied for efficient delay fault diagnosis and delay fault coverage estimation. A new path sensitization strategy called Signal Stabilization Time Analysis (SSTA) has been developed based on the fact that primitive PDFs determine the stabilization time of the circuit outputs. This analysis has been used to develop a feasible method of identifying the primitive PDFs in a general multi-level logic circuit. An approach to determine the maximum circuit delay using this primitive PDF identification mechanism is also presented. The Primitive PDF Identification-based Timing Analysis (PITA) approach is proved to determine the maximum floating mode circuit delay exactly under any component delay model, and provides several advantages over previously floating mode timing analyzers. A framework for the diagnosis of circuit failures caused by distributed path delay faults is also presented. A metric to quantify the diagnosability of a path delay fault for a test is also proposed. Finally, the book presents a very realistic metric for delay fault coverage which accounts for delay fault size distributions and is applicable to any delay fault model. A Unified Approach for Timing Verification and Delay Fault Testing will be of interest to university and industry researchers in timing analysis and delay fault testing as well as EDA tool development engineers and design verification engineers dealing with timing issues in ULSI circuits. The book should also be of interest to digital designers and others interested in knowing the state of the art in timing verification and delay fault testing.

Download or read book Integrated Circuit and System Design Power and Timing Modeling Optimization and Simulation written by Jose L. Ayala and published by Springer Science & Business Media. This book was released on 2011-09-15 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 21st International Conference on Integrated Circuit and System Design, PATMOS 2011, held in Madrid, Spain, in September 2011. The 34 revised full papers presented were carefully reviewed and selected from numerous submissions. The paper feature emerging challenges in methodologies and tools for the design of upcoming generations of integrated circuits and systems and focus especially on timing, performance and power consumption as well as architectural aspects with particular emphasis on modeling, design, characterization, analysis and optimization.

Download or read book Taxonomies for the Development and Verification of Digital Systems written by Brian Bailey and published by Springer Science & Business Media. This book was released on 2005-04-12 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thorough set of definitions for the terms and models used in the creation, refinement, and verification of complex systems from the conceptual level down to its implementation Considering both the hardware and software components of the system Also covers the emerging area of platform-based design Provides both knowledge of models and terms, and understanding of these models and how they are used.

Download or read book Rapid System Prototyping with FPGAs written by R. C. Cofer and published by Elsevier. This book was released on 2011-03-31 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: The push to move products to market as quickly and cheaply as possible is fiercer than ever, and accordingly, engineers are always looking for new ways to provide their companies with the edge over the competition. Field-Programmable Gate Arrays (FPGAs), which are faster, denser, and more cost-effective than traditional programmable logic devices (PLDs), are quickly becoming one of the most widespread tools that embedded engineers can utilize in order to gain that needed edge. FPGAs are especially popular for prototyping designs, due to their superior speed and efficiency. This book hones in on that rapid prototyping aspect of FPGA use, showing designers exactly how they can cut time off production cycles and save their companies money drained by costly mistakes, via prototyping designs with FPGAs first. Reading it will take a designer with a basic knowledge of implementing FPGAs to the “next-level of FPGA use because unlike broad beginner books on FPGAs, this book presents the required design skills in a focused, practical, example-oriented manner. In-the-trenches expert authors assure the most applicable advice to practicing engineers Dual focus on successfully making critical decisions and avoiding common pitfalls appeals to engineers pressured for speed and perfection Hardware and software are both covered, in order to address the growing trend toward "cross-pollination" of engineering expertise

Download or read book Timing Analysis of VLSI Circuits Using Symbolic and Visualization Technics for Practical Applications written by Yan-Chyuan Shiau and published by . This book was released on 1992 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Transistor Level Micro Placement and Routing for Two dimensional Digital VLSI Cell Synthesis written by Michael Anthony Riepe and published by . This book was released on 1999 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt: The automated synthesis of mask geometry for VLSI leaf cells, referred to as the cell synthesis problem, is an important component of any structured custom integrated circuit design environment. Traditional approaches based on the classic functional cell style of Uehara & VanCleemput pose this problem as a straightforward one-dimensional graph optimization problem for which optimal solution methods are known. However, these approaches are only directly applicable to static CMOS circuits and they break down when faced with more exotic logic styles. Our methodology is centered around techniques for the efficient modeling and optimization of geometry sharing. Chains of diffusion-merged transistors are formed explicitly and their ordering optimized for area and global routing. In addition, more arbitrary merged structures are supported by allowing electrically compatible adjacent transistors to overlap during placement. The synthesis flow in TEMPO begins with a static transistor chain formation step. These chains are broken at the diffusion breaks and the resulting sub-chains passed to the placement step. During placement, an ordering is found for each chain and a location and orientation is assigned to each sub-chain. Different chain orderings affect the placement by changing the relative sizes of the sub-chains and their routing contribution. We conclude with a detailed routing step and an optional compaction step.