1、 IEC 61691-6 Edition 2.0 2021-06 INTERNATIONAL STANDARD Behavioural languages Part 6:VHDL Analog and Mixed-Signal Extensions IEC 61691-6:2021-06(en)IEEE Std 1076.1-2017 IEEE Std 1076.1 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2017 IEEE All rights reserved.IEEE is a registered trademark in t
2、he U.S.Patent&Trademark Office,owned by the Institute of Electrical and Electronics Engineers,Inc.Unless otherwise specified,no part of this publication may be reproduced or utilized in any form or by any means,electronic or mechanical,including photocopying and microfilm,without permission in writi
3、ng from the IEC Central Office.Any questions about IEEE copyright should be addressed to the IEEE.Enquiries about obtaining additional rights to this publication and other information requests should be addressed to the IEC or your local IEC member National Committee.IEC Central Office Institute of
4、Electrical and Electronics Engineers,Inc.3,rue de Varemb 3 Park Avenue CH-1211 Geneva 20 New York,NY 10016-5997 Switzerland United States of America Tel.:+41 22 919 02 11 stds.infoieee.org infoiec.ch www.ieee.org www.iec.ch About the IEC The International Electrotechnical Commission(IEC)is the leadi
5、ng global organization that prepares and publishes International Standards for all electrical,electronic and related technologies.About IEC publications The technical content of IEC publications is kept under constant review by the IEC.Please make sure that you have the latest edition,a corrigendum
6、or an amendment might have been published.IEC publications search-webstore.iec.ch/advsearchform The advanced search enables to find IEC publications by a variety of criteria(reference number,text,technical committee,).It also gives information on projects,replaced and withdrawn publications.IEC Just
7、 Published-webstore.iec.ch/justpublished Stay up to date on all new IEC publications.Just Published details all new publications released.Available online and once a month by email.IEC Customer Service Centre-webstore.iec.ch/csc If you wish to give us your feedback on this publication or need furthe
8、r assistance,please contact the Customer Service Centre:salesiec.ch.IEC online collection-oc.iec.ch Discover our powerful search engine and read freely all the publications previews.With a subscription you will always have access to up to date content tailored to your needs.Electropedia-www.electrop
9、edia.org The worlds leading online dictionary on electrotechnology,containing more than 22 000 terminological entries in English and French,with equivalent terms in 18 additional languages.Also known as the International Electrotechnical Vocabulary(IEV)online.IEC 61691-6 Edition 2.0 2021-06 INTERNAT
10、IONAL STANDARD Behavioural languages Part 6:VHDL Analog and Mixed-Signal Extensions INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 25.040.01;35.060 ISBN 978-2-8322-9830-5 Warning!Make sure that you obtained this publication from an authorized distributor.IEEE Std 1076.1 Registered trademark of the In
11、ternational Electrotechnical Commission 9Copyright 2018 IEEE.All rights reserved.Contents1.Overview.151.1Scope.151.2Purpose.151.3Structure and terminology of this standard.152.Normative references.183.Design entities and configurations.193.1General.193.2Entity declarations.193.3Architecture bodies.2
12、23.4Configuration declarations.254.Subprograms and packages.324.1General.324.2Subprogram declarations.324.3Subprogram bodies.364.4Subprogram instantiation declarations.394.5Subprogram overloading.404.6Resolution functions.424.7Package declarations.434.8Package bodies.454.9Package instantiation decla
13、rations.464.10Conformance rules.475.Types and natures.485.1General.485.2Scalar types.495.3Composite types.575.4Access types.675.5File types.695.6Protected types.725.7String representations.755.8Natures.766.Declarations.816.1General.816.2Type declarations.826.3Subtype declarations.826.4Objects.846.5I
14、nterface declarations.956.6Alias declarations.1136.7Attribute declarations.1166.8Component declarations.1176.9Group template declarations.1176.10Group declarations.117Published by IEC under licence from IEEE.2018 IEEE.All rights reserved.IEC 61691-6:2021 IEC 2021 IEEE Std 1076.1-2017i10Copyright 201
15、8 IEEE.All rights reserved.6.11Nature and subnature declarations.1186.12PSL clock declarations.1197.Specifications.1207.1General.1207.2Attribute specification.1207.3Configuration specification.1237.4Disconnection specification.1297.5Step limit specification.1318.Names.1348.1General.1348.2Simple name
16、s.1358.3Selected names.1368.4Indexed names.1388.5Slice names.1398.6Attribute names.1398.7External names.1409.Expressions.1449.1General.1449.2Operators.1459.3Operands.1589.4Static expressions.1669.5Universal expressions.1709.6Linear forms.17010Sequential statements.17310.1General.17310.2Wait statement.17310.3Assertion statement.17510.4Report statement.17610.5Signal assignment statement.17710.6Variable assignment statement.18810.7Procedure call statement.19210.8If statement.19210.9Case statement.1
