The subject of VLSI systems spans a broad range of disciplines, including semiconductor devices and processing, integrated electronic circuits, digital logic, design disciplines and tools for creating complex systems, and the architecture, algorithms, and applications of complete VLSI systems. The Addison-Wesley VLSI Systems Series is being organized as a set of textbooks and research references that present the best current work across this exciting and diverse field, with each book providing for its subject a perspective that ties it to related disciplines. Part of what distinguishes the expert chip designer from the novice is an understanding the entire suite of tools that are available, and how they work together to support the design flow of a project.
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This text focuses on presenting the basic features of the VHDL language in the context of its use for simulation. The text is targeted for use in sophomore and junior level courses in digital logic and computer architecture. The style of this text is intended to permit integration of the basic concepts underlying VHDL into existing courses without necessitating additional credit hours or courses for instruction. In order to fill the need for a companion text for digital logic and computer architecture courses and to serve as an early introduction to the basic language concepts the book must satisfy several criteria. First, it must relate VHDL concepts to those already familiar to the student. Students learn best when they can relate new concepts to ones with which they are already familiar.
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Contents:
¨ Introduction
¨ Brief Overview of VHDL-AMS
¨ Basic Concepts: DAEs
¨ Systems with Conservation Semantics: Diode
¨ Mixed Technology: Diode with Self Heating
¨ Piecewise Defined Behavior: Compressor,Voltage Limiter
¨ Procedural Modeling: Weighted Summer
¨ Signal-Flow Modeling: Adder-Integrator, Conversions
¨ Solvability: Voltage Source, Signal Flow Amplifier
¨ Initial Conditions: Capacitor
¨ Implicit Quantities
¨ Mixed-Signal Modeling: Comparators, D/A Converter
¨ VHDL-AMS Model Execution
¨ Discontinuities: SCR, Voltage Limiter, Bouncing Ball
¨ Time-Dependent Modeling: Sinusoid Voltage Source
¨ Frequency Domain Modeling: Current Source, Filter
¨ Noise Modeling: Resistor, Diode
¨ Conclusion
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Table Contents:
Chapter1 – Getting Started
Chapter2 – Synthesis with Verilog
Chapter2v – Synthesis with VHDL
Chapter3 – Coding for Synthesis with Verilog
Chapter3v – Coding for Synthesis with VHDL
Chapter4 – Simulation
Chapter5 – Some Final Thoughts
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HDL (Hardware Description Language) based design has established itself as the modern approach to design of digital systems, with VHDL (VHSIC Hardware Description Language) and Verilog HDL being the two dominant HDLs. Numerous universities thus introduce their students to VHDL (or Verilog). The problem is that VHDL is complex due to its generality. Introducing students to the language first, and then showing them how to design digital systems with the language, tends to confuse students. The language issues tend to distract them from the understanding of digital components. And the synthesis subset issues of the language add to the confusion.
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