This article contains all the required sources to enhance the preparation process for the students, starting from the lecture notes and study materials in pdf format to the books, syllabus/ curriculum, and the crucial questions.

The notes and study materials are the expertly designed contents to meet all the requirements of the students and provide them with an easily understandable resource. On the other hand, the reference books are the ones that are specially curated by some certified experts of the topics, and every single candidate can blindly trust these resources for their preparations and rely on them to have the best results.

The article also contains the curriculum that plays a significant role while learning any subject and the important questions of the topics that will provide the students with an idea about what type of questions are asked in the examinations and how should they prepare themselves to be the best ones with the best results.

Combinedly, every resource available in the article will add to the preparation of the students and will eventually serve as the golden stones in their learning process.

## Introduction to Digital Design Through Verilog HDL Notes

Verilog is a type of HDL (Hardware Description Language) used for describing a digital system like the microprocessor or the network switch. It means that by making use of HDL, we can describe the digital hardware at any particular level. The described designs in HDL are entirely independent of the technology used, are extremely easy for debugging and designing purpose, and are more useful than the schematics for the larger circuits.

Verilog supports the design at many abstraction levels, and the three major ones are as follows:

Behavioural level

This is the level that describes the system by some concurrent behavioural algorithms. It works sequentially, i.e., consists of a set of certain instructions that executes one by one. The main elements of this level are tasks, functions, and blocks.

Register-transfer level

The designs that form using the Register-transfer level specifies the characters of the circuit using the operations and data transfer between the registers. RTL code’s primary definition is “It is any code that is synthesizable”.

Gate level

At the logical level, the characters of a system are described by the logical inks. All the signals are discrete, and they only have the definite logical values ranging in a set, i.e., (0, 1, X, Z). The code for Gate level design is mainly generated using tools like the synthesis tools and the simulations for the backend.

### Digital Design through Verilog Chapter-wise Notes and Study material PDF Free Download

Chapter-wise notes for Digital Design Through Verilog is essential for the preparation of the students. The notes and study materials contain all the brief descriptions of every topic, including the basic and advanced ones. The study materials and notes are highly crucial for the students to learn well and get the right idea about every concept.

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### Digital Design through Verilog Reference Books

Along with the notes and study materials, another vital thing for the preparation of any subject is a book. There are some textual books of the concepts and the reference books, and all of them play an essential role for the students to enhance their preparation. From brief descriptions of all the related topics to the stated examples and problem statements for practice, the reference books carry all the elements that add on to a student’s preparation.

For Digital Design Through Verilog, there are some recommended reference books as mentioned below that are designed by some globally recognized and certified, top experts of the concepts, and they have every related basic and advance level concepts for the students.

• T R Padmanabhan, B Bala Tripura Sundari, Design through Verilog HDL., Wiley, 2009.
• Zainalabdien Navabi, Verilog Digital System Design, TMH, 2nd edition.
• Fundamentals of Digital Logic with Verilog Design by Stephen Brown, Zvonkoc Vranesic, TMH, 2nd edition, 2010
• Digital Logic Design using Verilog: State machine & Synthesis for FPGA, Sunggu Lee, Cengage Learning 2009
• Verilog HDL: Samir Palnitkar, 2nd Edition, Pearson Education, 2009.
• Advanced Digital Design with the Verilog HDL – Michel D. Ciletti, PHI, 2009.

### Digital Design through Verilog Curriculum

Curriculum also adds to the learning process of the students. It is always suggested to have a clear idea about the syllabus of any subject before moving on to learning it, and the same follows with Digital Design Through Verilog. For learning Digital Design Through Verilog, it is essential to know well about all the related topics and the subtopics, and the weightage that they carry for any examination.

Having access to the curriculum of Digital Design Through Verilog will help the students in having the best preparation as they will then always follow the right sequence for learning and will never get confused among any concepts. Moreover, when following the syllabus, the students will never mistakenly leave any topic. They will also have a better understanding of all the related topics when learning in the right manner.

Here is the updated syllabus of DSP:

 UNIT – I: Introduction to Verilog HDL Verilog as HDL Levels of the design description Concurrency Simulation and Synthesis and their tools Functional Verification System tasks Programming Language interface Module UNIT – II: Language Constructs and Conventions Introduction Keywords Identifiers White space Characters Comments Numbers Strings Logic Values Strengths Data types Scalars and Vectors Parameters Operators UNIT – III: Gate Level Modeling Introduction AND Gate Primitive Module structure and other gate primitives Illustrative examples Tristate gates Arrays of instances of primitives Design of Flip-Flops with gate primitives Delays, Strengths, and Construction resolution Net types Design of primary circuit. UNIT – IV: Behavioral Modeling Introduction Operations and assignments Functional bifurcation ‘Initial’ construct, ’always’ construct, and ‘wait’ construct Assignments with Delays Multiple always block Designs at the behavioural level Blocking & non-blocking assignments The ‘case’ statement Simulation flow ‘if’ and ‘if-else’ constructs, ’assign-de-assign’ construct, ’repeat’ construct, and ‘the disable’ construct, ‘for’ loop, ‘while loop’, and forever loop Parallel blocks ‘force-release construct Event. UNIT – V: Modeling as Dataflow Level and Switch level modelling Introduction Continuous assignment structure Delays and continuous assignments Assignments to vectors, operators. Basic transistor switches CMOS switches Bi-directional gates Time delays with switch primitive Instantiation with ‘strengths’ and ‘delays.’ Strength contention with Trireg nets. UNIT-VI: System tasks, Functions and Compiler Directives Parameters Path delays Module parameters System tasks and functions File-based tasks and functions Compiler directives Hierarchical access User-defined Primitives. UNIT-VII: Sequential Circuit Description Sequential models – feedback model Capacitive model Implicit model Basic memory components Functional register Static machine coding Sequential Synthesis. UNIT-VIII: Component Test and Verification Test bench- combinational circuit testing Sequential circuit testing Test bench techniques Design verification Assertion verification.

### List of Digital Design through Verilog Important Questions

Digital Design Through Verilog Important questions will provide the students with a clear idea about the types of questions related to different topics, and how their evaluations are done. This will help the students to practice according to the said requirements, and thus be well prepared for the examination.

There are many important questions for Digital Design Through Verilog, here is a list of a few of them to help the students understand well about the requirements and practice the questions well to have the best results.

• Explain the conventional approach to digital design.
• Explain the Levels of the design description.
• What is functional verification in Verilog?
• Explain in brief: a) data types b)strengths c)strings.
• What are scalars and vectors in Verilog? Explain with examples.
• Explain gate primitive in Verilog with example.
• Draw synthesized circuit diagrams of a 3-8 decoder.
• What are tristate gates? Explain them in Verilog.
• Explain the functional bifurcation of behavioural modelling.
• Write a Verilog module for the up-down counter and a test bench for the same.
• Write about Continuous assignment structures in Verilog with examples.
• Explain in Verilog: a) binary operations b) unary operations c)logical operators d) relational operators e) equality operators f)bit-wise logical operators.
• Write a data flow Verilog model for the BCD adder module at the data flow level. Draw its synthesized diagrams.
• Explain a module for half-address with timing delays and test bench.
• Write an example module to illustrate the edge-sensitive path delays and their test bench.
• Write an example module, illustrating the use of the PATHPULSE limit.
• Explain the feedback model, the capacitive model, and implicit models.
• Explain the static machine coding using an example.
• Explain all the different testbench techniques with examples.
• Explain design verification with an example program.

### Frequently Asked Questions on Digital Design Through Verilog HDL Notes

Question 1.
How can we explain Verilog as HDL?

Verilog intends to provide a functionally tested and verified design and structure description for the targeted ASIC or FPGA. There are two main functions of the language, which are:

1. Fulfillment of the needs for design descriptions.
2. Fulfillment of the needs for the design’s verification for timing and functional constraints, including the propagation delay, slack, hold times, setup, critical path delay, and others.

Question 2.
Explain the levels of the design description.