IEC-61691-3-2-2001.pdf
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1、INTERNATIONAL STANDARD IEC 61691-3-2 First edition 2001-06 Behavioural languages Part 3-2: Mathematical operation in VHDL Reference number IEC 61691-3-2:2001(E) Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=IHS Employees/1111111001, User=Wing, Ber
2、nie Not for Resale, 03/10/2007 01:54:40 MSTNo reproduction or networking permitted without license from IHS -,-,- Publication numbering As from 1 January 1997 all IEC publications are issued with a designation in the 60000 series. For example, IEC 34-1 is now referred to as IEC 60034-1. Consolidated
3、 editions The IEC is now publishing consolidated versions of its publications. For example, edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the base publication, the base publication incorporating amendment 1 and the base publication incorporating amendments 1 and 2. Further information on
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8、publication or need further assistance, please contact the Customer Service Centre: Email: custserviec.ch Tel: +41 22 919 02 11 Fax: +41 22 919 03 00 Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for
9、 Resale, 03/10/2007 01:54:40 MSTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD IEC 61691-3-2 First edition 2001-06 Behavioural languages Part 3-2: Mathematical operation in VHDL PRICE CODE IEC 2001 Copyright - all rights reserved No part of this publica
10、tion may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Electrotechnical Commission3, rue de Varemb Geneva, Switzerland Telefax: +41 22 919 0300e-mail: inmailiec.ch
11、 IEC web site http:/www.iec.ch R For price, see current catalogue Commission Electrotechnique Internationale International Electrotechnical Commission Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=IHS Employees/1111111001, User=Wing, Bernie Not fo
12、r Resale, 03/10/2007 01:54:40 MSTNo reproduction or networking permitted without license from IHS -,-,- 2 61691-3-2 IEC:2001(E) INTERNATIONAL ELECTROTECHNICAL COMMISSION _ BEHAVIOURAL LANGUAGES Part 3-2: Mathematical operation in VHDL FOREWORD 1)The IEC (International Electrotechnical Commission) is
13、 a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition
14、 to other activities, the IEC publishes International Standards. Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising w
15、ith the IEC also participate in this preparation. The IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2)The formal decisions or agreements of the IEC on technical matters expre
16、ss, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested National Committees. 3)The documents produced have the form of recommendations for international use and are published in the form of standa
17、rds, technical specifications, technical reports or guides and they are accepted by the National Committees in that sense. 4)In order to promote international unification, IEC National Committees undertake to apply IEC International Standards transparently to the maximum extent possible in their nat
18、ional and regional standards. Any divergence between the IEC Standard and the corresponding national or regional standard shall be clearly indicated in the latter. 5)The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in
19、conformity with one of its standards. 6)Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 61691-3-2 has be
20、en prepared by IEC technical committee 93: Design automation. This standard is based on IEEE Std 1076-2 (1996): IEEE Standard VHDL mathematical packages. The text of this standard is based on the following documents: FDISReport on voting 93/131/FDIS93/141/RVD Full information on the voting for the a
21、pproval of this standard can be found in the report on voting indicated in the above table. This standard does not follow the rules for the structure of international standards given in Part 3 of the ISO/IEC Directives. IEC 61691 consists of the following parts, under the general title: Behavioural
22、languages: IEC 61691-1:1997, VHDL language reference manual 1) IEC 61691-2:2001, Part 2: VHDL multilogic system for model interoperability 1) The edition 2 with the title: VHSIC hardware description language VHDL (1076a) (under consideration) will replace it. Copyright International Electrotechnical
23、 Commission Provided by IHS under license with IECLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/10/2007 01:54:40 MSTNo reproduction or networking permitted without license from IHS -,-,- 61691-3-2 IEC:2001(E) 3 IEC 61691-3-1, Part 3-1: Analog description in VHDL (under cons
24、ideration) IEC 61691-3-2:2001, Part 3-2: Mathematical operation in VHDL IEC 61691-3-3:2001, Part 3-3: Synthesis in VHDL IEC 61691-3-4, Part 3-4: Timing expressions in VHDL (under consideration) IEC 61691-3-5, Part 3-5: Library utilities in VHDL (under consideration) The committee has decided that th
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