دانلود کتاب مدارهای منطقی دیجیتال با برنامه‌های VHDL و Verilog

The main objective of this book is to explore the basic concepts of digital logic circuits and Systems in a simple and easy-to-understand manner. This text on digital logic circuits with VHDL and Verilog programs has been crafted for all students of engineering, arts and science colleges of various universities in India. Considering the difficulty in logical analysis needed in this subject, more emphasis has been given on the problem-solving methodology. Considerable effort has been made to elucidate the logical explanations in a step-by-step manner. Exercise problems with various difficulty levels are given in the text to help students get an intuitive grasp on the subject. This book with its lucid writing style and germane pedagogical features will prove to be a master text for engineering students. Salient Features • Proof of important concepts and theorems are clearly highlighted by shaded boxes • Wherever required, problems are solved in multiple methods • Additional explanations for solutions and proofs are provided in separate boxes • Different types of fonts are used for text, proof, problems and VHDL/Verilog programs for better clarity • Keywords are highlighted by bold, italic fonts • Ample figures and examples to enhance students understanding • Digital system or function implementation using standard ICs • VHDL and Verilog programs which are useful for laboratory practice and other projects This book is organized with 15 Chapters • Chapter 1 provides a simple introduction to various aspects of digital system. Chapter 2 starts with a discussion of various number systems and basic arithmetic operations in these number systems. Representation of negative numbers by complement numbers and arithmetic in complement number systems are also presented in this chapter with examples. • Chapter 3 is devoted to various types of binary codes. BCD codes, alphanumeric codes and error detection and correction codes are clearly explained with appropriate examples. Addition and subtraction in excess-3 code is also explained with examples. • Chapter 4 includes Boolean algebra and theorems, Boolean functions and basic concepts of logic gates. The standard forms of Boolean functions are also presented in this chapter. Implementation of Boolean functions using universal gates and standard logic gate ICs, Boolean function minimization using theorems, K-maps and Quine-McCluskey methods are also discussed in this chapter. The formation of prime implicants using 1’s and 0’s are clearly explained with examples. • Chapter 5 is devoted to combinational logic circuit analysis and design. The analysis and design of code converters, decoders, encoders, multiplexers, demultiplexers, adders, subtractors, multipliers and magnitude comparator are presented with clear examples. Implementation of combinational logic circuits using multiplexers, decoders and standard ICs are also discussed in this chapter. Analysis and design of ALU (Arithmetic Logic Unit) using combinational circuits are included in this chapter. Some application examples of combinational logic systems like digital trans-receiver, Parity generator and checker and BCD to 7-segment decoder are included in this chapter. • Chapter 6 starts with detailed working of various types of flip-flops used to build synchronous circuits. The characteristics of flip-flops and timing analysis of inputs and outputs are presented with appropriate timing diagrams. The conversion of flip-flops from one type to another types are clearly explained in this chapter. • Chapter 7 is devoted to synchronous sequential circuit. Analysis and design of Mealy and Moore models of synchronous logic circuits are presented with step-by-step explanations. The basic concepts of state and state variables are explained clearly. Implementation of sequential logic circuits using flip-flops and standard ICs are also discussed in this chapter. • The analysis and design of synchronous circuits like counters, sequence detectors and registers are explained with appropriate examples in Chapter 8. Design and implementation of various types of counters using flip-flops and standard ICs are presented in this chapter. Application examples of synchronous logic system like rolling display and real time clock are included in this chapter. • Chapter 9 is devoted to the analysis and design of asynchronous logic circuits. State reduction using implication table and merger diagram and race-free state assignment are clearly explained with appropriate examples. Design of fundamental mode asynchronous sequential circuits using latches and pulse mode sequential circuits using unclocked flip-flops are presented with step-by-step explanations. • The detailed discussion on races and hazards are presented in Chapter 10. Also, various methods for eliminating races and hazards are discussed with examples. The characteristics of the devices of various logic families are presented in Chapter 11. The development of logic gates in various logic families are explained in detail in this chapter. Implementation of combinational logic circuit in CMOS is explained with examples in this chapter. • A brief discussion on various types of semiconductor memory and programmable logic devices are presented in Chapter 12. The digital system design using programmable ICs like PROM, PLA and PAL are explained with appropriate examples. A short note on advanced programmable ICs CPLD and FPGA are also included in this chapter. • Basic concepts of DAC and ADC are discussed in Chapter 13. Some popular types of DAC and ADC are explained clearly with appropriate diagrams. The standard and commonly used digital ICs are listed in Appendix for ready reference to implement digital systems using standard ICs • Chapters 14 and 15 are dedicated to Hardware Description Languages (HDLs). A brief introduction to VHDL language is presented in Chapter 14 and Verilog language in Chapter 15 for better understanding of the readers. VHDL and Verilog programs for combinational and sequential circuit design are presented in chapters 14 and 15. Test bench is also included for some of the VHDL and Verilog programs. A brief introduction about RTL design methodology is included with programming examples. All VHDL/Verilog statement/program examples in this book are simulated and verified in license free Xilinx VHDL tool Vivado 2019.2 web edition which can be directly downloaded from the following link. https://www.xilinx.com/support/download/index.html/content/xilinx/en/downloadNav/vivado-designtools/ archive.html