1. Digital System Design An Introduction to Verilog® HDL
Sharif University of Technology
Department of Computer Engineering
Digital System Design An Introduction to Verilog® HDL
Alireza Ejlali

2. Verilog HDL Textbook A guide to Digital Design and Synthesis
Samir Palnitkar
SunSoft Press
1996

3. Hardware Description Languages
HDL
Popular HDLs (IEEE Standard)
Verilog® =Verifying Logic
VHDL
Other HDLs
AHPL
TI-HDL
AHDL
Basic Idea
Programming Languages

4. HDL Requirements Concurrency Timing Support for Design Hierarchy
Structural Specification
Pragmatics

5. Applications Communication Documentation Computer Aided Design (CAD)
Human / Computer
Human / Human
Documentation
Computer Aided Design (CAD)
Simulation
Synthesis

6. Why are HDLs essential? SSI (Small Scale Integration)
MSI (Medium Scale Integration)
Paper and Pencil
LSI (Large Scale Integration)
ASM (Algorithmic State Machine)
VLSI (Very Large Scale Integration)
CAD (HDLs)

7. Verilog VS. VHDL VHDL Verilog More general language
Not all constructs are synthesizable
Verilog
Not as general as VHDL
Most constructs are synthesizable

8. Design Flow Design specification Behavioral description
RTL description
Functional verification and testing
Logic synthesis
Gate-level netlist
Logical verification and testing
Floor planning, automatic place & route
Physical layout
Layout verification
Implementation

9. Popularity of Verilog HDL
Easy to learn, Easy to write
Similar in Syntax to C
Allows different levels of abstraction and mixing them
Supported by most popular CAD tools and vendors
PLI to customize Verilog simulators to designers’ needs

10. Design Methodologies