IEEE Std 1364-2001
(Revision of
IEEE Std 1364-1995)
IEEE
Standards
IEEE Standard Verilog Hardware
Description Language
®
IEEE Computer Society
Sponsored by the
Design Automation Standards Committee
Published by
The Institute of Electrical and Electronics Engineers, Inc.
3 Park Avenue, New York, NY 10016-5997, USA
28 September 2001
Print: SH94921
PDF: SS94921
IEEE Std 1364-2001
Version C
(Revision of IEEE Std 1364-1995)
IEEE Standard Verilog
®
Hardware
Description Language
Sponsor
Design Automation Standards Committee
of the
IEEE Computer Society
Approved 17 March 2001
IEEE-SA Standards Board
Abstract:
The Verilog
®
Hardware Description Language (HDL) is defined in this standard. Verilog
HDL is a formal notation intended for use in all phases of the creation of electronic systems. Be-
cause it is both machine readable and human readable, it supports the development, verification,
synthesis, and testing of hardware designs; the communication of hardware design data; and the
maintenance, modification, and procurement of hardware. The primary audiences for this standard
are the implementors of tools supporting the language and advanced users of the language.
Keywords:
computer, computer languages, digital systems, electronic systems, hardware, hard-
ware description languages, hardware design, HDL, PLI, programming language interface, Verilog
HDL, Verilog PLI, Verilog
®
The Institute of Electrical and Electronics Engineers, Inc.
3 Park Avenue, New York, NY 10016-5997, USA
Copyright © 2001 by the Institute of Electrical and Electronics Engineers, Inc.
All rights reserved. Published 28 September 2001. Printed in the United States of America.
Print:
PDF:
ISBN 0-7381-2826-0
ISBN 0-7381-2827-9
SH94921
SS94921
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About IEEE Std 1364-2001 Version C and the Errata
During the past two years, the IEEE 1364 Working Group’s Errata Task Force has thoroughly reviewed the
Standard and has identified and corrected a number of production and editorial errors that crept in between
balloting and printing of the Standard. IEEE Std 1364-2001 Version C incorporates all of these corrections.
In addition, during the IEEE 1364 Working Group’s review of the Standard, the Working Group and its
Errata Task Force identified other areas where the standard had logical inconsistencies which were not the
result of production problems. The Working Group developed an Errata document that identifies these and
specifies the Working Group’s statement as to the correct interpretation of the Standard.
Copyright © 2001 IEEE. All rights reserved.
iii
Participants—Version C and Errata
At the time IEEE Std 1364-2001 Version C and the Errata were completed, the IEEE 1364 Working Group
had the following membership:
Michael T. Y. (Mac) McNamara,
Chair
Shalom Bresticker,
Editor
Stefen Boyd,
Web Master
Kurt Baty
Dennis Brophy
Clifford E. Cummings
Charles Dawson
Tom Fitzpatrick
Krishna Garlapati
Keith Gover
Ennis Hawk
Richard Ho
Atsushi Kasuya
Jay Lawrence
Andrew Lynch
James A. Markevitch
Dennis Marsa
Francoise Martinolle
Mehdi Mohtashemi
Anders Nordstrom
Karen Pieper
Brad Pierce
Steven Sharp
Alec Stanculescu
Stuart Sutherland
Chong Guan Tan
Gordon Vreugdenhil
The Errata Task Force had the following membership:
Karen Pieper,
Chair
Stefen Boyd,
Vice Chair
Kurt Baty
Shalom Bresticker
Dennis Brophy
Clifford E. Cummings
Charles Dawson
Ted Elkind
Tom Fitzpatrick
Jay Lawrence
Andrew Lynch
James A. Markevitch
Dennis Marsa
Francoise Martinolle
Michael T. Y. (Mac) McNamara
Elliot Mednick
Don Mills
Mehdi Mohtashemi
Anders Nordstrom
Brad Pierce
David Roberts
Steven Sharp
David Smith
Stuart Sutherland
Gordon Vreugdenhil
The Behavioral Task Force had the following membership:
Steven Sharp,
Chair
Kurt Baty
Stefen Boyd
Dennis Brophy
Clifford E. Cummings
Tom Fitzpatrick
Ennis Hawk
Atsushi Kasuya
Jay Lawrence
Francoise Martinolle
Michael T. Y. (Mac) McNamara
Don Mills
Mehdi Mohtashemi
Karen Pieper
Brad Pierce
Alec Stanculescu
Stuart Sutherland
Gordon Vreugdenhil
The PLI Task Force had the following membership:
Charles Dawson,
Co-Chair
Stuart Sutherland,
Co-Chair
Steven Dovich
Dennis Marsa
Francoise Martinolle
Nisa Parikh
David Roberts
iv
Copyright © 2001 IEEE. All rights reserved.
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