Specification of Communication
V4.2.0
R4.0 Rev 3
7.4.3.7 Use Cases for communication modes ............................................. 50
7.4.4 Signal invalidation mechanism............................................................ 52
7.4.4.1 Transmission of an invalidated signal.............................................. 52
7.4.4.2 Reception of an invalidated signal................................................... 53
7.4.5 Handling of I-PDUs ............................................................................. 54
7.4.5.1 I-PDU group definitions ................................................................... 54
7.4.5.2 Starting of I-PDU groups ................................................................. 55
7.4.5.3 Stopping of I-PDU groups................................................................ 57
7.4.5.4 Signal indication (Unpacking of I-PDUs).......................................... 58
7.4.5.5 Minimum Delay Timer (MDT)........................................................... 59
7.4.6 Deadline Monitoring ............................................................................ 60
7.4.6.1 Reception Deadline Monitoring........................................................ 61
7.4.6.2 Transmission Deadline Monitoring .................................................. 63
7.5 Map Complex Data Types to I-PDUs – Signal Groups............................... 65
7.5.1 Initialization ......................................................................................... 65
7.5.2 Transmission....................................................................................... 65
7.5.3 Reception............................................................................................ 66
7.5.4 Notifications......................................................................................... 66
7.5.5 Collection of the attributes of a signal group ....................................... 67
7.6 Support of large data types ........................................................................ 67
7.6.1 Transmission of large signals/ I-PDUs ................................................ 68
7.6.2 Reception of large signals/ I-PDUs ..................................................... 68
7.7 Support of dynamic length signals.............................................................. 68
7.7.1 Transmission of dynamic length signals/ I-PDUs ................................ 69
7.7.2 Reception of dynamic length signals/ I-PDUs ..................................... 69
7.8 Interface between AUTOSAR COM module and the PDU Router ............. 70
7.9 Signal status information............................................................................ 70
7.9.1 Identify if a signal is updated by the sender ........................................ 70
7.9.1.1 Sender Side..................................................................................... 71
7.9.1.2 Receiver Side .................................................................................. 72
7.10 Data sequence control ............................................................................... 72
7.10.1 Sender Side ........................................................................................ 72
7.10.2 Receiver Side...................................................................................... 73
7.11 Communication protection.......................................................................... 74
7.11.1 Sender Side ........................................................................................ 74
7.11.2 Receiver Side
...................................................................................... 74
7.11.3 Constraints.......................................................................................... 75
7.12 Signal Gateway .......................................................................................... 75
7.12.1 Dealing with signals ............................................................................ 76
7.12.2 Dealing with signal groups .................................................................. 76
7.12.3 Routing of out timed signals and signal groups................................... 76
7.12.4 Handling of update-bits ....................................................................... 77
7.12.5 Decoupling signal gateway ................................................................. 77
7.13 Error classification...................................................................................... 78
7.14 Error detection............................................................................................ 78
7.15 Error notification ......................................................................................... 78
7.16 Error handling............................................................................................. 79
7.17 Debugging.................................................................................................. 79
7.18 The AUTOSAR COM module’s Interaction Model...................................... 79
8 API specification................................................................................................ 83
5 of 179 Document ID 015: AUTOSAR_SWS_COM
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