ISO 11898-2 2016.pdf

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Foreword

Introduction

1 Scope

2 Normative references

3 Terms and definitions

4 Symbols and abbreviated terms

5 Functional description of the HS-PMA

5.1 General

5.2 HS-PMA test circuit

5.3 Transmitter characteristics

5.4 Receiver characteristics

5.5 Receiver input resistance

5.6 Transmitter and receiver timing behaviour

5.7 Maximum ratings of VCAN_H, VCAN_L and VDiff

5.8 Maximum leakage currents of CAN_H and CAN_L

5.9 Wake-up from low-power mode

5.9.1 Overview

5.9.2 Basic wake-up

5.9.3 Wake-up pattern wake-up

5.9.4 Selective wake-up

5.10 Bus biasing

5.10.1 Overview

5.10.2 Normal biasing

5.10.3 Automatic voltage biasing

6 Conformance

Annex A (informative) ECU and network design

Annex B (informative) PN physical layer modes

Bibliography

INTERNATIONAL STANDARD ISO 11898-2 Second edition 2016-12-15 Part 2: Road vehicles — Controller area network (CAN) — High-speed medium access unit Véhicules routiers — Gestionnaire de réseau de communication (CAN) — Partie 2: Unité d’accès au support à haute vitesse Reference number ISO 11898-2:2016(E) © ISO 2016

ISO 11898-2:2016(E) COPYRIGHT PROTECTED DOCUMENT © ISO 2016, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 • CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyright@iso.org www.iso.org ii © ISO 2016 – All rights reserved

ISO 11898-2:2016(E) Contents Page Foreword ........................................................................................................................................................................................................................................iv Introduction ..................................................................................................................................................................................................................................v Scope .................................................................................................................................................................................................................................1 Normative references ......................................................................................................................................................................................1 Terms and definitions .....................................................................................................................................................................................1 Symbols and abbreviated terms ...........................................................................................................................................................2 Functional description of the HS-PMA ...........................................................................................................................................3 5.1 General ...........................................................................................................................................................................................................3 5.2 HS-PMA test circuit .............................................................................................................................................................................3 Transmitter characteristics ..........................................................................................................................................................4 5.3 5.4 Receiver characteristics ..................................................................................................................................................................8 5.5 Receiver input resistance ...............................................................................................................................................................9 5.6 Transmitter and receiver timing behaviour ..................................................................................................................9 5.7 Maximum ratings of VCAN_H, VCAN_L and VDiff ............................................................................................................11 5.8 Maximum leakage currents of CAN_H and CAN_L .................................................................................................12 5.9 Wake-up from low-power mode ...........................................................................................................................................12 5.9.1 Overview ..............................................................................................................................................................................12 5.9.2 Basic wake-up..................................................................................................................................................................13 5.9.3 Wake-up pattern wake-up ....................................................................................................................................13 5.9.4 Selective wake-up .........................................................................................................................................................13 5.10 Bus biasing ...............................................................................................................................................................................................18 5.10.1 Overview ..............................................................................................................................................................................18 5.10.2 Normal biasing ...............................................................................................................................................................18 5.10.3 Automatic voltage biasing .....................................................................................................................................18 Conformance ..........................................................................................................................................................................................................20 Annex A (informative) ECU and network design ...................................................................................................................................21 Annex B (informative) PN physical layer modes ...................................................................................................................................29 Bibliography .............................................................................................................................................................................................................................30 1 2 3 4 5 6 © ISO 2016 – All rights reserved iii

ISO 11898-2:2016(E) 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. The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives). 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. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents). Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement. For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISO’s adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html. The committee responsible for this document is ISO/TC 22, Road vehicles, Subcommittee SC 31, Data communication. This second edition cancels and replaces the first edition (ISO 11898-2:2003), which has been technically revised, with the following changes: — max output current on CANH/CANL has been defined (Table 4); — optional TXD timeout has been defined (Table 7); — receiver input resistance range has been changed (Table 10); — Bit timing parameters for CAN FD for up to 2 Mbps have been defined (Table 13); — Bit timing parameters for CAN FD for up to 5 Mbps have been defined (Table 14); — content of ISO 11898-5 and ISO 11898-6 has been integrated to ensure there is one single ISO Standard for all HS-PMA implementations; — selective wake-up (formerly ISO 11898-6) CAN FD tolerance has been defined; — wake-filter timings (formerly in ISO 11898-5) have been changed (Table 20) — requirements and assumptions about the PMD sublayer have been shifted to Annex A, to clearly focus on the HS-PMA implementation. A list of all parts in the ISO 11898 series can be found on the ISO website. iv © ISO 2016 – All rights reserved

ISO 11898-2:2016(E) Introduction ISO 11898 was first published as one document in 1993. It covered the CAN data link layer as well as the high-speed physical layer. In the reviewed and restructured ISO 11898 series, ISO 11898-1 and ISO 11898-4 defined the CAN protocol and time-triggered CAN (TTCAN) while ISO 11898-2 defines the high-speed physical layer, and ISO 11898-3 defined the low-speed fault tolerant physical layer. Figure 1 shows the relation of the Open System Interconnection (OSI) layers and its sublayers to ISO 11898-1, this document as well as ISO 11898-3. Figure 1 — Overview of ISO 11898 specification series KeyAUI attachment unit interface MDImedia dependant interface OSI open system interconnection The International Organization for Standardization (ISO) draws attention to the fact that it is claimed that compliance with this document may involve the use of a patent concerning the selective wake-up function given in 5.9.4. ISO takes no position concerning the evidence, validity and scope of this patent right. The holder of this patent right has assured ISO that he/she is willing to negotiate licenses under reasonable and non-discriminatory terms and conditions with applicants throughout the world. In this respect, the statement of the holder of this patent right is registered with ISO. Information may be obtained from the following: v © ISO 2016 – All rights reserved

ISO 11898-2:2016(E) Elmos Semiconductor AG Heinrich-Hertz-Str. 1 44227 Dortmund Germany Freescale Semiconductor Inc. 6501 W. William Canon Drive Austin, Texas United States General Motors Corp. 30001 VanDyke, Bldg 2-10 Warren, MI 48090-9020 United States of America NXP BV High Tech Campus 60 5656 AG Eindhoven The Netherlands Audi AG August-Horch-Str. 85045 Ingolstadt Germany BMW Group Knorrstr. 147 80788 München Germany Continental Teves AG & Co. oHG Guerickestr. 7 60488 Frankfurt am Main Germany DENSO CORP. 1-1, Showa-cho, Kariya-shi Aichi-ken 448-8661 Japan Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights other than those identified above. ISO shall not be held responsible for identifying any or all such patent rights. ISO (www.iso.org/patents) maintains on-line databases of patents relevant to their standards. Users are encouraged to consult the databases for the most up to date information concerning patents. Renesas Electronics Europe GmbH Arcadiastr. 10 40472 Düsseldorf Germany Robert Bosch GmbH PO Box 30 02 20 70442 Stuttgart Germany STMicroelectronics Application GmbH Bahnhofstrasse 18 85609 Aschheim Dornach Germany Volkswagen AG PO Box 011/1770 38436 Wolfsburg Germany vi © ISO 2016 – All rights reserved

INTERNATIONAL STANDARD ISO 11898-2:2016(E) 1 Scope 2 Normative references signalling 3 Terms and definitions medium access unit with selective wake-up functionality High-speed medium access unit Road vehicles — Controller area network (CAN) — Part 2: This document specifies the high-speed physical media attachment (HS-PMA) of the controller area network (CAN), a serial communication protocol that supports distributed real-time control and multiplexing for use within road vehicles. This includes HS-PMAs without and with low-power mode capability as well as with selective wake-up functionality. The physical media dependant sublayer is not in the scope of this document. The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 11898-1:2015, Road vehicles — Controller area network (CAN) — Part 1: Data link layer and physical ISO 16845-2, Road vehicles — Controller area network (CAN) conformance test plan — Part 2: High-speed For the purposes of this document, the terms and definitions given in ISO 11898-1 and the following apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: — IEC Electropedia: available at http://www.electropedia.org/ — ISO Online browsing platform: available at http://www.iso.org/obp NOTE interface between the PCS that is specified in ISO 11898-1 and the PMA that is specified in this document GNDelectrical signal ground HS-PMA implementation that has been released prior to the publication of this document © ISO 2016 – All rights reserved See Figure A.1 for a visualization of the definitions. 3.1 attachment unit interface AUI 3.2 ground 3.3 legacy implementation 1

ISO 11898-2:2016(E) 3.4 low-power mode 3.5 medium attachment unit 3.10 transceiver 4 Symbols and abbreviated terms 3.9 physical media attachment 3.7 normal-power mode 3.8 physical coding sublayer 3.6 media dependent interface MDI mode in which the transceiver is not capable of transmitting or receiving messages, except for the purposes of determining if a WUP or WUF is being received MAUunit that comprises the physical media attachment and the media dependent interface interface that ensures proper signal transfer between the media and the physical media attachment mode in which the transceiver is fully capable of transmitting and receiving messages PCSsublayer that performs bit encoding/decoding and synchronization PMAsublayer that converts physical signals into logical signals and vice versa implementation that comprises one or more physical media attachments For the purposes of this document, the symbols and abbreviated terms given in ISO 11898-1 and the following apply. Some of these abbreviations are also defined in ISO 11898-1. If the definition of the term in this document is different from the definition in ISO 11898-1, this definition applies. AUI DLC EMC ESD GND HS-PMA MAU MDI PCS PMA attachment unit interface data length code electromagnetic compatibility electro static discharge ground high-speed PMA medium attachment unit media dependent interface physical coding sublayer physical media attachment 2 © ISO 2016 – All rights reserved

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