IEC 62531:2007

Standard for Property Specification Language (PSL)

Defines the property specification language (PSL), which formally describes electronic system behavior. This standard specifies the syntax and semantics for PSL and also clarifies how PSL interfaces with various standard electronic system design languages.

General Information

• Status: Published
• Publication Date: 06-Nov-2007
• ICS: 25.040.01 - Industrial automation systems in general
• Technical Committee: TC 91 - Electronics assembly technology
• Drafting Committee: WG 13 - TC 91/WG 13
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 21-Jun-2012

Relations

• Revised: IEC 62531:2012 - Property Specification Language (PSL)
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 62531
Edition 1.0 2007-11
™
IEEE 1850
INTERNATIONAL
STANDARD
Standard for Property Specification Language (PSL)

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IEC 62531
Edition 1.0 2007-11
™
IEEE 1850
INTERNATIONAL
STANDARD
Standard for Property Specification Language (PSL)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
XG
ICS 25.040 ISBN 2-8318-9352-6
– 2 – IEC 62531:2007(E)
IEEE 1850-2005(E)
CONTENTS
FOREWORD . 4
IEEE introduction .7
1. Overview. 8
1.1 Scope. 8
1.2 Purpose. 8
1.2.1 Background. 8
1.2.2 Motivation. 9
1.2.3 Goals . 9
1.3 Usage . 9
1.3.1 Functional specification. 9
1.3.2 Functional verification. 10
2. Normative references .14
3. Definitions, acronyms, and abbreviations.16
3.1 Definitions . 16
3.2 Acronyms and abbreviations .19
3.3 Special terms. 19
4. Organization. 22
4.1 Abstract structure. 22
4.1.1 Layers. 22
4.1.2 Flavors . 22
4.2 Lexical structure . 23
4.2.1 Identifiers . 23
4.2.2 Keywords . 23
4.2.3 Operators. 24
4.2.4 Macros . 29
4.2.5 Comments . 31
4.3 Syntax . 31
4.3.1 Conventions . 31
4.3.2 HDL dependencies. 32
4.4 Semantics . 36
4.4.1 Clocked vs. unclocked evaluation . 36
4.4.2 Safety vs. liveness properties. 37
4.4.3 Linear vs. branching logic . 37
4.4.4 Simple subset . 37
4.4.5 Finite-length vs. infinite-length behavior . 38
4.4.6 The concept of strength. 38
5. Boolean layer . 40
5.1 Expression type classes. 40
5.1.1 Bit expressions. 40
5.1.2 Boolean expressions . 41
5.1.3 BitVector expressions . 42
5.1.4 Numeric expressions. 42
5.1.5 String expressions .43
5.2 Expression forms . 43
5.2.1 HDL expressions. 43
Published by IEC under licence from IEEE. © 2005 IEEE. All rights reserved.

IEEE 1850-2005(E)
5.2.2 PSL expressions .45
5.2.3 Built-in functions . 45
5.2.4 Union expressions. 51
5.3 Clock expressions . 51
5.4 Default clock declaration . 53
6. Temporal layer .56
6.1 Sequential expressions . 57
6.1.1 Sequential Extended Regular Expressions (SEREs) . 57
6.1.2 Sequences. 64
6.2 Properties . 70
6.2.1 FL properties. 71
6.2.2 Optional Branching Extension (OBE) properties . 91
6.2.3 Replicated properties . 98
6.3 Property and sequence declarations.100
6.3.1 Parameters.101
6.3.2 Declarations .103
6.3.3 Instantiation .104
7. Verification layer . 108
7.1 Verification directives. 108
7.1.1 assert . 108
7.1.2 assume. 109
7.1.3 assume_guarantee . 110
7.1.4 restrict . 110
7.1.5 restrict_guarantee. 111
7.1.6 cover. 112
7.1.7 fairness and strong_fairness. 112
7.2 Verification units . 113
7.2.1 Verification unit binding. 114
7.2.2 Verification unit inheritance . 116
7.2.3 Verification unit scoping rules. 117
8. Modeling layer. 120
8.1 Integer ranges. 120
8.2 Structures . 121
Annex A (normative) Syntax rule summary. 122
Annex B (normative) Formal syntax and semantics of IEEE Std 1850 PSL. 136
Annex C (informative) Bibliography. 146
Annex D (informative) List of participants. 148
Index . 150
Published by IEC under licence from IEEE. © 2005 IEEE. All rights reserved.

– 4 – IEC 62531:2007(E)
IEEE 1850-2005(E)
IEEE 1850
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