Flip Flop Vhdl Code

flip flop vhdl code

    flip flop

  • interchange: reverse (a direction, attitude, or course of action)
  • A light sandal, typically of plastic or rubber, with a thong between the big and second toe
  • reversal: a decision to reverse an earlier decision
  • A backward handspring
  • An abrupt reversal of policy
  • a backless sandal held to the foot by a thong between the big toe and the second toe


  • VHDL (VHSIC hardware description language; VHSIC: very-high-speed integrated circuit) is a hardware description language used in electronic design automation to describe digital and mixed-signal systems such as field-programmable gate arrays and integrated circuits.
  • Very High Density Lipoprotein


  • A system of words, letters, figures, or other symbols substituted for other words, letters, etc., esp. for the purposes of secrecy
  • a set of rules or principles or laws (especially written ones)
  • A system of signals, such as sounds, light flashes, or flags, used to send messages
  • A series of letters, numbers, or symbols assigned to something for the purposes of classification or identification
  • attach a code to; “Code the pieces with numbers so that you can identify them later”
  • a coding system used for transmitting messages requiring brevity or secrecy

flip flop vhdl code – Circuit Design

Circuit Design and Simulation with VHDL
Circuit Design and Simulation with VHDL
This text offers a comprehensive treatment of VHDL and its applications to the design and simulation of real, industry-standard circuits. It focuses on the use of VHDL rather than solely on the language, showing why and how certain types of circuits are inferred from the language constructs and how any of the four simulation categories can be implemented. It makes a rigorous distinction between VHDL for synthesis and VHDL for simulation. The VHDL codes in all design examples are complete, and circuit diagrams, physical synthesis in FPGAs, simulation results, and explanatory comments are included with the designs. The text reviews fundamental concepts of digital electronics and design and includes a series of appendixes that offer tutorials on important design tools including ISE, Quartus II, and ModelSim, as well as descriptions of programmable logic devices in which the designs are implemented, the DE2 development board, standard VHDL packages, and other features. All four VHDL editions (1987, 1993, 2002, and 2008) are covered. This expanded second edition is the first textbook on VHDL to include a detailed analysis of circuit simulation with VHDL testbenches in all four categories (nonautomated, fully automated, functional, and timing simulations), accompanied by complete practical examples. Chapters 1–9 have been updated, with new design examples and new details on such topics as data types and code statements. Chapter 10 is entirely new and deals exclusively with simulation. Chapters 11–17 are also entirely new, presenting extended and advanced designs with theoretical and practical coverage of serial data communications circuits, video circuits, and other topics. There are many more illustrations, and the exercises have been updated and their number more than doubled.

VHDL descrição e síntese de circuitos digitais

VHDL descrição e síntese de circuitos digitais
D’AMORE, Roberto. VHDL: descricao e sintese de circuitos digitais. Rio de Janeiro: LTC, 2005. xiii, 259 p. Inclui bibliografia; il. tab. graf.; 28cm. ISBN 8521614527.

Notas de conteudo:
# 1. Introducao
# 2. Primeiro contato com a linguagem
# 3. Comandos concorrentes basicos
# 4. Comandos sequenciais basicos
# 5. Atraso, variavel e atributos
# 6. Estrategias de descricao de circuitos sincronos
# 7. Componentes e esquemas de iteracao
# 8. Subprogramas
# 9. Bibliotecas e pacotes
# 10. Padrao IEEE 1164
# 11. Padrao IEEE 1076.3
# 12. Declaracao de tipos e pseudonimos
# 13. Arquivos
# 14. Topicos avancados
# 15. Teste


CDU 621.3.049.77 / D811v / 2005

Book Stack

Book Stack
A small selection of books that I have to digest in the next week and half.

Sleep? Who needs it.

flip flop vhdl code

flip flop vhdl code

The Designer's Guide to VHDL, Volume 3, Third Edition (Systems on Silicon)
VHDL, the IEEE standard hardware description language for describing digital electronic systems, has recently been revised. This book has become a standard in the industry for learning the features of VHDL and using it to verify hardware designs. This third edition is the first comprehensive book on the market to address the new features of VHDL-2008.

* First comprehensive book on VHDL to incorporate all new features of VHDL-2008, the latest release of the VHDL standard…helps readers get up to speed quickly with new features of the new standard.
* Presents a structured guide to the modeling facilities offered by VHDL…shows how VHDL functions to help design digital systems.
* Includes extensive case studies and source code used to develop testbenches and case study examples..helps readers gain maximum facility with VHDL for design of digital systems.

VHDL may sound like a new Internet language, but it really stands for VHSIC (Very High Speed Integrated Circuit) Hardware Definition Language. VHDL borrows ideas from software engineering (architectural, behavior, and formal models, as well as modular design) and is used to design today’s custom integrated circuits, from cell phones to microwave ovens and even CPUs. Peter Ashenden’s The Designer’s Guide to VHDL shows you how to use this language to write a hardware design, which you can then test in a simulator before “synthesizing” it into an actual hardware design in silicon.
The book begins with the basics of VHDL, which, like any software language, has keywords, operators, flow control statements, and programming conventions. Next, the author introduces his first case study–a “pipelined multiplier accumulator,” which simulates a CPU register. He then moves on to more complicated models, such as a design for a complete CPU (the DLX processor, which is used as a model for educating future CPU designers). More advanced aspects of VHDL follow, including guard signals, abstract data types, and even file I/O. A final case study (for a “queuing network”) puts these components into practice. The book closes with a discussion of “synthesizers”–additional software tools that convert a VHDL specification into silicon–and how these tools impose design limits. The appendices include Institute of Electrical and Electronics Engineers (IEEE) enhancements to VHDL, which have increased the design language’s power. Although most of us won’t ever need to design our own integrated circuit, this book shows how it’s done. Engineering students who need to master VHDL during a semester-length course, will find Ashenden’s guide to be indispensable–and written in an accessible style rarely found in engineering texts.

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