SAE J2602-1 Revised NOV2012 Page 2 of 48
5.
LIN SYSTEM REQUIREMENTS ................................................................................................................... 8
5.1 LIN Specification Package ............................................................................................................................ 8
5.2 J2602-1 Serial Data Link Characteristics ...................................................................................................... 8
5.3 Detection of Errors by Master ....................................................................................................................... 8
5.4 Frame Processing by Slave Tasks ............................................................................................................... 8
5.5 Message Transmission Time Tolerance ....................................................................................................... 9
5.6 LIN Product Identification .............................................................................................................................. 9
5.7 Mandatory Node Configuration Requests (reference LIN 2.0 Diag and Config Specification) .................... 9
5.8 Message Format ......................................................................................................................................... 14
5.9 Message Types ........................................................................................................................................... 17
5.10 Calibration/Configuration Methods ............................................................................................................. 18
6. J2602-1 API REQUIREMENTS .................................................................................................................. 31
6.1 Master Node Configuration API .................................................................................................................. 31
6.2 Diagnostic Transport Layer API .................................................................................................................. 31
6.3 Additional API Requirements ...................................................................................................................... 31
7. J2602-1 BUS OPERATION ........................................................................................................................ 31
7.1 Normal Communication Mode and Transmission Rate .............................................................................. 31
7.2 Sleep/Wake Mode ....................................................................................................................................... 31
7.3 LIN Controller Clock Tolerance ................................................................................................................... 32
7.4 Bus Electrical Parameters ........................................................................................................................... 33
7.5 LIN Data Link (UART) Requirements ......................................................................................................... 34
7.6 LIN ECU Requirements .............................................................................................................................. 35
7.7 Network Topology ....................................................................................................................................... 36
7.8 ESD Immunity ............................................................................................................................................. 39
7.9 EMC Testing Requirements ........................................................................................................................ 40
7.10 Fault Tolerant Modes .................................................................................................................................. 40
7.11 Ground Offset Voltage ................................................................................................................................ 40
7.12 Operating Battery Power Voltage Range .................................................................................................... 40
7.13 Environmental Requirements ...................................................................................................................... 41
8. VALIDATION ............................................................................................................................................... 42
9. NOTES ........................................................................................................................................................ 42
9.1 Marginal Indicia ........................................................................................................................................... 42
APPENDIX A LIN DEVICE SUPPLIERS ........................................................................................................................... 43
APPENDIX B SIGNAL ENCODING TYPES ...................................................................................................................... 44
APPENDIX C BIT TIMING CALCULATIONS .................................................................................................................... 47
APPENDIX D RATIONALES ............................................................................................................................................. 48
FIGURE 1 SLAVE DETECTED CALIBRATION NOT LOADED .................................................................................. 25
FIGURE 2 SLAVE DETECTED CALIBRATION NOT LOADED .................................................................................. 30
FIGURE 3 WAKE-UP SIGNAL TIMING ....................................................................................................................... 32
FIGURE 4 BIT SAMPLE TIMING ................................................................................................................................. 34
FIGURE 5 TYPICAL LIN SLAVE BUS INTERFACE .................................................................................................... 35
FIGURE 6 TYPICAL LIN MASTER BUS INTERFACE ................................................................................................ 35
FIGURE 7 LIN RING TOPOLOGY ............................................................................................................................... 37
FIGURE 8 LIN LINEAR TOPOLOGY ........................................................................................................................... 37
FIGURE 9 LIN STAR TOPOLOGY ............................................................................................................................... 38
FIGURE 10 LIN COMBINATION RING AND STAR TOPOLOGY ................................................................................. 38
FIGURE C1 RELATION BETWEEN PROPAGATION DELAY AND DUTY CYCLE ...................................................... 47