ISO 17458-5:2013

INTERNATIONAL ISO
STANDARD 17458-5
First edition
2013-02-01
Road vehicles — FlexRay
communications system —
Part 5:
Electrical physical layer conformance
test specification
Véhicules routiers — Système de communications FlexRay —
Partie 5: Spécification d'essai de conformité de la couche d'application
électrique
Reference number
©
ISO 2013
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Published in Switzerland
ii © ISO 2013 – All rights reserved

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...

INTERNATIONAL ISO
STANDARD 17458-5
First edition
2013-02-01
Road vehicles— FlexRay
communications system —
Part 5:
Electrical physical layer conformance
test specification
Véhicules routiers — Système de communications FlexRay —
Partie 5: Spécification d'essai de conformité de la couche d'application
électrique
Reference number
©
ISO 2013
©  ISO 2013
All rights reserved. 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 writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56  CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2013 – All rights reserved

Contents Page
Foreword . v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms, definitions, symbols and abbreviated terms . 1
3.1 Terms and definitions . 1
3.2 Abbreviated terms . 2
4 Document reference according to OSI model . 3
5 Conventions . 4
5.1 General . 4
5.2 Notational conventions . 4
6 Test environment . 4
6.1 Test case architecture . 4
6.2 Test method . 5
6.3 Test environment . 9
6.4 Test topology . 9
6.5 Test equipment . 27
7 Stress Conditions . 34
7.1 Ground shift . 34
7.2 Low battery voltage inside operational range . 35
7.3 Undervoltage . 36
7.4 Dynamic low battery voltage . 37
7.5 Dynamic low supply voltage . 38
7.6 Failures . 41
7.7 Babbling idiot . 47
7.8 Dynamic ground shift . 47
7.9 EMC . 48
7.10 ESD . 48
7.11 Temperature tests . 48
7.12 Common mode offset . 48
8 Parameter List . 49
8.1 General . 49
8.2 Static test cases . 50
8.3 Communication . 50
8.4 Host Interface . 54
8.5 Mode . 55
8.6 Power supply . 59
8.7 Environment . 61
8.8 Dynamic low battery voltage . 62
8.9 Dynamic low supply voltage . 62
8.10 Failure . 62
8.11 Functional class . 65
8.12 Simulation . 65
9 Test Cases for Bus Drivers. 65
9.1 Configuration . 66
9.2 Static test cases . 89
9.3 Test cases . 97
10 Test cases for Active Stars . 563
10.1 General . 563
10.2 Configuration . 563
10.3 Static test cases . 577
10.4 Test cases . 584
11 Test cases for Active Stars with communication controller interface . 717
11.1 Configuration . 717
11.2 Static test cases . 724
11.3 Test cases . 728
12 Test Cases for Active Stars with host interface . 795
12.1 Configuration . 795
12.2 Static test cases . 800
12.3 Test cases . 803
Annex A (normative) FlexRay parameters . 922
Bibliography . 930

iv © ISO 2013 – All rights reserved

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 17458-5 was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 3,
Electrical and electronic equipment.
ISO 17458 consists of the following parts, under the general title Road vehicles — FlexRay communications
system:
 Part 1: General information and use case definition
 Part 2: Data link layer specification
 Part 3: Data link layer conformance test specification
 Part 4: Electrical physical layer specification
 Part 5: Electrical physical layer conformance test specification
Introduction
The FlexRay communications system is an automotive focused high speed network and was developed with
several main objectives which were defined beyond the capabilities of established standardized bus systems
like CAN and some other proprietary bus systems. Some of the basic characteristics of the FlexRay protocol
are synchronous and asynchronous frame transfer, guaranteed frame latency and jitter during synchronous
transfer, prioritization of frames during asynchronous transfer, single or multi-master clock synchronization,
time synchronization across multiple networks, error detection and signalling, and scalable fault tolerance.
The FlexRay communications system is defined for advanced automotive control applications. It serves as a
communication infrastructure for future generation high-speed control applications in vehicles by providing:
 A message exchange service that provides deterministic cycle based message transport;
 Synchronization service that provides a common time base to all nodes;
 Start-up service that provides an autonomous start-up procedure;
 Error management service that provides error handling and error signalling;
 Wakeup service that addresses the power management needs.
This bus system has been developed with several main objectives which were defined beyond the capabilities
of existing bus systems like CAN and some other proprietary bus systems. This advanced automotive
communication system specifies support for:
 Scalable static and dynamic message transmission (deterministic and flexible);
 High net data rate of 5 Mbit/sec; gross data rate approximately 10 Mbit/sec;
 Scalable fault-tolerance (single and dual channel);
 Error containment on the physical layer through an independent Bus Guardian;
 Fault tolerant clock synchronisation (global time base).
Since start of development the automotive industry world wide supported the specification development. The
FlexRay communications system has been successfully implemented in production vehicles today.
The ISO 17458 series specifies the use cases, the comm
...

INTERNATIONAL ISO
STANDARD 17458-5
First edition
2013-02-01
Road vehicles— FlexRay
communications system —
Part 5:
Electrical physical layer conformance
test specification
Véhicules routiers — Système de communications FlexRay —
Partie 5: Spécification d'essai de conformité de la couche d'application
électrique
Reference number
©
ISO 2013
©  ISO 2013
All rights reserved. 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 writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56  CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2013 – All rights reserved

Contents Page
Foreword . v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms, definitions, symbols and abbreviated terms . 1
3.1 Terms and definitions . 1
3.2 Abbreviated terms . 2
4 Document reference according to OSI model . 3
5 Conventions . 4
5.1 General . 4
5.2 Notational conventions . 4
6 Test environment . 4
6.1 Test case architecture . 4
6.2 Test method . 5
6.3 Test environment . 9
6.4 Test topology . 9
6.5 Test equipment . 27
7 Stress Conditions . 34
7.1 Ground shift . 34
7.2 Low battery voltage inside operational range . 35
7.3 Undervoltage . 36
7.4 Dynamic low battery voltage . 37
7.5 Dynamic low supply voltage . 38
7.6 Failures . 41
7.7 Babbling idiot . 47
7.8 Dynamic ground shift . 47
7.9 EMC . 48
7.10 ESD . 48
7.11 Temperature tests . 48
7.12 Common mode offset . 48
8 Parameter List . 49
8.1 General . 49
8.2 Static test cases . 50
8.3 Communication . 50
8.4 Host Interface . 54
8.5 Mode . 55
8.6 Power supply . 59
8.7 Environment . 61
8.8 Dynamic low battery voltage . 62
8.9 Dynamic low supply voltage . 62
8.10 Failure . 62
8.11 Functional class . 65
8.12 Simulation . 65
9 Test Cases for Bus Drivers. 65
9.1 Configuration . 66
9.2 Static test cases . 89
9.3 Test cases . 97
10 Test cases for Active Stars . 563
10.1 General . 563
10.2 Configuration . 563
10.3 Static test cases . 577
10.4 Test cases . 584
11 Test cases for Active Stars with communication controller interface . 717
11.1 Configuration . 717
11.2 Static test cases . 724
11.3 Test cases . 728
12 Test Cases for Active Stars with host interface . 795
12.1 Configuration . 795
12.2 Static test cases . 800
12.3 Test cases . 803
Annex A (normative) FlexRay parameters . 922
Bibliography . 930

iv © ISO 2013 – All rights reserved

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 17458-5 was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 3,
Electrical and electronic equipment.
ISO 17458 consists of the following parts, under the general title Road vehicles — FlexRay communications
system:
 Part 1: General information and use case definition
 Part 2: Data link layer specification
 Part 3: Data link layer conformance test specification
 Part 4: Electrical physical layer specification
 Part 5: Electrical physical layer conformance test specification
Introduction
The FlexRay communications system is an automotive focused high speed network and was developed with
several main objectives which were defined beyond the capabilities of established standardized bus systems
like CAN and some other proprietary bus systems. Some of the basic characteristics of the FlexRay protocol
are synchronous and asynchronous frame transfer, guaranteed frame latency and jitter during synchronous
transfer, prioritization of frames during asynchronous transfer, single or multi-master clock synchronization,
time synchronization across multiple networks, error detection and signalling, and scalable fault tolerance.
The FlexRay communications system is defined for advanced automotive control applications. It serves as a
communication infrastructure for future generation high-speed control applications in vehicles by providing:
 A message exchange service that provides deterministic cycle based message transport;
 Synchronization service that provides a common time base to all nodes;
 Start-up service that provides an autonomous start-up procedure;
 Error management service that provides error handling and error signalling;
 Wakeup service that addresses the power management needs.
This bus system has been developed with several main objectives which were defined beyond the capabilities
of existing bus systems like CAN and some other proprietary bus systems. This advanced automotive
communication system specifies support for:
 Scalable static and dynamic message transmission (deterministic and flexible);
 High net data rate of 5 Mbit/sec; gross data rate approximately 10 Mbit/sec;
 Scalable fault-tolerance (single and dual channel);
 Error containment on the physical layer through an independent Bus Guardian;
 Fault tolerant clock synchronisation (global time base).
Since start of development the automotive industry world wide supported the specification development. The
FlexRay communications system has been successfully implemented in production vehicles today.
The ISO 17458 series specifies the use cases, the comm
...