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LIN Specification Package
Revision 2.2
December 31, 2010; Page 1
LIN
Specification Package
Revision 2.2
© LIN Consortium, 2010.
This specification as released by the LIN Consortium is intended for the purpose of
information only and is provided on an "AS IS" basis only and cannot be the basis for
any claims. The LIN Consortium will not be liable for any use of this Specification. The
unauthorized use, e.g. copying, displaying or other use of any content from this docu-
ment is a violation of the law and intellectual property rights.
LIN is a registered Trademark ®. All rights reserved.
All distributions are registered.
Issue Date Remark
LIN 1.0 1999-07-01 Initial Version of the LIN Specification
LIN 1.1 2000-03-06
LIN 1.2 2000-11-17
LIN 1.3 2002-12-13
LIN 2.0 2003-09-16 Major Revision Step
LIN 2.1 2006-11-24
Clarifications, configuration modified, transport layer
enhanced and diagnostics added.
LIN 2.2 2010-12-31
Updated document according to LIN 2.1 Errata she
et 1.4
Softened bit sampling specification
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REVISION HISTORY
descd
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TABLE OF CONTENTS
Specification Package
1.1 LIN ....................................................................................................10
1.1.1 Scope ...........................................................................................10
1.1.2 Features and possibilities .............................................................10
1.1.3 Work flow concept ........................................................................11
1.1.4 Node concept ...............................................................................12
1.1.5 Concept of operation ....................................................................12
1.1.5.1 Master and slave ..........................................................................12
1.1.5.2 Frames .........................................................................................13
1.1.5.3 Data transport...............................................................................13
1.1.5.4 Schedule table..............................................................................14
1.1.6 Document overview ......................................................................14
1.1.7 History and background................................................................14
1.1.7.1 Compatibility with LIN 1.3 .............................................................15
1.1.7.2 Compatibility with LIN 2.0 .............................................................16
1.1.7.3 Compatibility with LIN 2.1 .............................................................16
1.1.7.4 Changes between LIN 1.3 and LIN 2.0 ........................................17
1.1.7.5 Changes between LIN 2.0 and LIN 2.1 ........................................17
1.1.7.6 Changes between LIN 2.1 and LIN 2.2 ........................................18
1.1.8 References ...................................................................................18
1.2 LIN Glossary .....................................................................................20
Protocol Specification
2.1 Introduction .......................................................................................25
2.2 Signal Management..........................................................................26
2.2.1 Signal types ..................................................................................26
2.2.2 Signal consistency........................................................................26
2.2.3 Signal packing ..............................................................................26
2.2.4 Signal reception and transmission................................................27
2.3 Frame Transfer .................................................................................29
2.3.1 Frame structure ............................................................................29
2.3.1.1 Break field.....................................................................................30
2.3.1.2 Sync byte field ..............................................................................30
2.3.1.3 Protected identifier field ................................................................31
2.3.1.4 Data ..............................................................................................31
2.3.1.5 Checksum.....................................................................................32
2.3.2 Frame length ................................................................................32
2.3.3 Frame types..................................................................................33
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2.3.3.1 Unconditional frame......................................................................33
2.3.3.2 Event triggered frame ...................................................................34
2.3.3.3 Sporadic frame .............................................................................36
2.3.3.4 Diagnostic frames.........................................................................37
2.3.3.5 Reserved frames ..........................................................................38
2.4 Schedule tables ................................................................................39
2.4.1 Time definitions ............................................................................39
2.4.2 frame Slot .....................................................................................39
2.4.3 Schedule table handling ...............................................................40
2.5 Task Behavior Model ........................................................................41
2.5.1 Master task state machine............................................................41
2.5.2 Slave task state machine..............................................................41
2.5.2.1 Break/sync field sequence detector..............................................41
2.5.2.2 Frame processor ..........................................................................42
2.6 Network Management.......................................................................45
2.6.1 slave communication state diagram .............................................45
2.6.2 Wake up .......................................................................................46
2.6.3 Go to sleep ...................................................................................47
2.7 Status Management..........................................................................49
2.7.1 Concept ........................................................................................49
2.7.2 Event triggered frames .................................................................49
2.7.3 Reporting to the cluster ................................................................49
2.7.4 Reporting within own node ...........................................................50
2.8 Appendices .......................................................................................52
2.8.1 Table of numerical properties .......................................................52
2.8.2 Table of valid frame identifiers......................................................53
2.8.3 Example of checksum calculation ................................................55
2.8.4 Syntax and mathematical symbols used in this standard.............56
Transport Layer Specification
3.1 Introduction .......................................................................................58
3.2 Transport layer..................................................................................59
3.2.1 PDU structure ...............................................................................59
3.2.1.1 Overview.......................................................................................60
3.2.1.2 NAD ..............................................................................................60
3.2.1.3 PCI................................................................................................60
3.2.1.4 LEN...............................................................................................61
3.2.1.5 SID................................................................................................61
3.2.1.6 D1 to D6 .......................................................................................61
3.2.2 Communication.............................................................................61
3.2.2.1 Single Frame Transmission..........................................................62
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3.2.2.2 Multiple Frame Transmission .......................................................62
3.2.3 Error Handling ..............................................................................62
3.2.4 Defined requests ..........................................................................63
3.2.5 timing constraints..........................................................................63
Node configuration and Identification Specification
4.1 Introduction .......................................................................................67
4.2 Node configuration and identification................................................68
4.2.1 LIN product identification ..............................................................68
4.2.1.1 Wildcards......................................................................................68
4.2.2 Slave Node model ........................................................................69
4.2.2.1 Initial NAD.....................................................................................70
4.2.3 PDU structure ...............................................................................71
4.2.3.1 Overview.......................................................................................72
4.2.3.2 NAD ..............................................................................................72
4.2.3.3 PCI................................................................................................72
4.2.3.4 SID................................................................................................73
4.2.3.5 RSID .............................................................................................73
4.2.3.6 D1 to D5 .......................................................................................73
4.2.4 Node configuration and identification ...........................................74
4.2.5 Node configuration services .........................................................74
4.2.5.1 Assign NAD ..................................................................................74
4.2.5.2 Conditional change NAD ..............................................................75
4.2.5.3 Data dump ....................................................................................76
4.2.5.4 Save Configuration .......................................................................76
4.2.5.5 Assign frame ID range..................................................................77
4.2.6 Identification .................................................................................78
4.2.6.1 Read by identifier..........................................................................78
Diagnostic specification
5.1 Introduction .......................................................................................81
5.1.1 using the transport layer ...............................................................81
5.1.2 LIN master ....................................................................................82
5.1.3 slave nodes ..................................................................................82
5.2 Diagnostic classes ............................................................................83
5.2.1 Diagnostic Class I.........................................................................83
5.2.1.1 Transport protocol ........................................................................83
5.2.1.2 Diagnostic services.......................................................................83
5.2.2 Diagnostic Class II........................................................................83
5.2.2.1 Transport protocol ........................................................................83
5.2.2.2 Diagnostic services.......................................................................84
