VHDL – Behavioral Modeling and Registered Elements ENGIN 341 – Advanced Digital Design...

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VHDL – Behavioral Modeling and Registered Elements ENGIN 341 – Advanced Digital Design University of Massachusetts Boston Department of Engineering Dr. Filip Cuckov

Transcript of VHDL – Behavioral Modeling and Registered Elements ENGIN 341 – Advanced Digital Design...

Page 1: VHDL – Behavioral Modeling and Registered Elements ENGIN 341 – Advanced Digital Design University of Massachusetts Boston Department of Engineering Dr.

VHDL – Behavioral Modeling and Registered

ElementsENGIN 341 – Advanced Digital Design

University of Massachusetts Boston

Department of Engineering

Dr. Filip Cuckov

Page 2: VHDL – Behavioral Modeling and Registered Elements ENGIN 341 – Advanced Digital Design University of Massachusetts Boston Department of Engineering Dr.

Overview

1. Processes and Behavioral Modeling2. Processes Describing Registered Elements3. Processes Describing State Machines

Page 3: VHDL – Behavioral Modeling and Registered Elements ENGIN 341 – Advanced Digital Design University of Massachusetts Boston Department of Engineering Dr.

1. Processes and Behavioral Modeling• Processes are VHDL constructs designed to be containers for a behavioral description of a circuit’s operation• Synthesizable processes must have a sensitivity list• A list of inputs that contribute to the resolution of the output• Either explicit (recommended) or use wait on signal statements

• Statements within process are executed sequentially• Signal updates are committed once the end process clause has been

reached• Variable updates are committed immediately after their assignment within a

process

Page 4: VHDL – Behavioral Modeling and Registered Elements ENGIN 341 – Advanced Digital Design University of Massachusetts Boston Department of Engineering Dr.

Dataflow vs. Process

VS.

Page 5: VHDL – Behavioral Modeling and Registered Elements ENGIN 341 – Advanced Digital Design University of Massachusetts Boston Department of Engineering Dr.

Combinatorial vs. Sequential Circuits• Processes that describe combinatorial logic are sensitive to every

input that contributes to the resolution of an output• Processes that describe sequential circuits are sensitive to clock (CLK)• Possibly a reset (RST), clock enable (CE), and other inputs depending on the

physical mapping to a registered element that is to be inferred.

Source: ug953-vivado-7series-libraries.pdf

Page 6: VHDL – Behavioral Modeling and Registered Elements ENGIN 341 – Advanced Digital Design University of Massachusetts Boston Department of Engineering Dr.

2. Processes Describing Registered Elements

Page 7: VHDL – Behavioral Modeling and Registered Elements ENGIN 341 – Advanced Digital Design University of Massachusetts Boston Department of Engineering Dr.

Example: Toggler

Page 8: VHDL – Behavioral Modeling and Registered Elements ENGIN 341 – Advanced Digital Design University of Massachusetts Boston Department of Engineering Dr.
Page 9: VHDL – Behavioral Modeling and Registered Elements ENGIN 341 – Advanced Digital Design University of Massachusetts Boston Department of Engineering Dr.

One Counter Testbench

Cascaded Counters Testbench


Engin Cetin Lower Limb

Engin Cetin Lower Limb

VHDL 1 INTRODUCTION TO VHDL - cse.cuhk.edu.hkmcyang/ceng3430/vhdl1.pdf · VHDL 1 INTRODUCTION TO VHDL (VERY-HIGH-SPEED-INTEGRATED-CIRCUITSHARDWARE DESCRIPTION LANGUAGE) VHDL 1. ver.7a

VHDL 1 INTRODUCTION TO VHDL - cse.cuhk.edu.hkmcyang/ceng3430/vhdl1.pdf · VHDL 1 INTRODUCTION TO VHDL (VERY-HIGH-SPEED-INTEGRATED-CIRCUITSHARDWARE DESCRIPTION LANGUAGE) VHDL 1. ver.7a

Magnet Piston Engin

Magnet Piston Engin

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research papers ENGIN-X: a third-generation neutron strain ... · ometers, ENGIN (Johnson et al., 1997). Following increased demand from the engineering community, ENGIN has recently

research papers ENGIN-X: a third-generation neutron strain ... · ometers, ENGIN (Johnson et al., 1997). Following increased demand from the engineering community, ENGIN has recently

Final Work Eco Engin

Final Work Eco Engin

Engin y Cat Guia

Engin y Cat Guia

Reverse Engin - Tech Diffusion

Reverse Engin - Tech Diffusion

INTRODUCTION TO VHDL - Electronic CircuitsVHDL Standards P1076 Standard VHDL Language Reference Manual (VASG) VHDL-87, VHDL-93, VHDL-01, VHDL-08 P1076.1 Standard VHDL Analog and Mixed-Signal

INTRODUCTION TO VHDL - Electronic CircuitsVHDL Standards P1076 Standard VHDL Language Reference Manual (VASG) VHDL-87, VHDL-93, VHDL-01, VHDL-08 P1076.1 Standard VHDL Analog and Mixed-Signal

Digital Systems Design Overview ENGIN 341 – Advanced Digital Design University of Massachusetts Boston Department of Engineering Dr. Filip Cuckov.

Digital Systems Design Overview ENGIN 341 – Advanced Digital Design University of Massachusetts Boston Department of Engineering Dr. Filip Cuckov.

Circuit Hydraulique Engin Chantier

Circuit Hydraulique Engin Chantier

COLLEGE OF ENGIN]

COLLEGE OF ENGIN]

ENGIN 1 Engineering Your Life: Skills for Leadership ...guide.berkeley.edu/courses/engin/engin.pdf · Engineering (ENGIN) 1 Engineering (ENGIN) Courses Expand all course descriptions

ENGIN 1 Engineering Your Life: Skills for Leadership ...guide.berkeley.edu/courses/engin/engin.pdf · Engineering (ENGIN) 1 Engineering (ENGIN) Courses Expand all course descriptions

Engin design

Engin design

Introduction to VHDL VHDL Page 1 -1 XILINX VHDL Class XILINX VHDL Class Presented by Training & Design Center.

Introduction to VHDL VHDL Page 1 -1 XILINX VHDL Class XILINX VHDL Class Presented by Training & Design Center.

A · Web viewIntroduction to VHDL Overview of VHDL History of VHDL Building blocks of VHDL Data type and operator VHDL Constructs Design Units of VHDL Introduction of Digital clock

A · Web viewIntroduction to VHDL Overview of VHDL History of VHDL Building blocks of VHDL Data type and operator VHDL Constructs Design Units of VHDL Introduction of Digital clock

By ENGIN EGE

By ENGIN EGE

VHDL 6 Synthesis With VHDL Leonardo

VHDL 6 Synthesis With VHDL Leonardo

CSE 341 Verilog HDL An Introduction. Hardware Specification Languages Verilog Similar syntax to C Commonly used in Industry (USA & Japan) VHDL

CSE 341 Verilog HDL An Introduction. Hardware Specification Languages Verilog Similar syntax to C Commonly used in Industry (USA & Japan) VHDL

ตารางเรียนโรงเรียนหอวัง · 341 ใต้โดม 341 341 341 341 พุธ อ32203 ค32103 อ32105 ศ32101 Ms.Mylene ครูวรรณิดา

ตารางเรียนโรงเรียนหอวัง · 341 ใต้โดม 341 341 341 341 พุธ อ32203 ค32103 อ32105 ศ32101 Ms.Mylene ครูวรรณิดา