BS ISO 20794-3:2020
$167.15
Road vehicles. Clock extension peripheral interface (CXPI) – Transport and network layer
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 34 |
This document specifies the OSI transport layer and network layer by means of services and protocols. They can be used by different applications.
The transport layer:
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transforms a message into a single packet;
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adds protocol control information for diagnostic and node configuration into each packet;
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adds packet identifier for diagnostic and node configuration into each packet; and
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performs transport protocol error detection.
The transport layer protocol is not used for normal communication except to map the service interface parameters between lower and upper OSI layers.
The network layer:
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adds a node address for diagnostic and node configuration into each segment; and
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observes timing for diagnostic and node configuration of each segment.
The network layer is not used for normal communication except to map the service interface parameters between lower and upper OSI layers.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 7 | Foreword |
| 8 | Introduction |
| 11 | 1 Scope 2 Normative references 3 Terms and definitions |
| 12 | 4 Symbols and abbreviated terms 4.1 Symbols 4.2 Abbreviated terms |
| 13 | 5 Conventions 6 Overview of transport layer and network layer 6.1 Properties 6.2 Packet types 6.3 Error detection and indication 7 Service interface parameters (SIP) 7.1 SIP — General |
| 14 | 7.2 SIP — Data type definitions 7.3 SIP — TA, target address 7.4 SIP — SA, source address 7.5 SIP — Ptype, packet type 7.6 SIP — ReqId, request identifier |
| 15 | 7.7 SIP — ReqTypeId, request type identifier 7.8 SIP — PDU, protocol data unit 7.9 SIP — Length, length of PDU 7.10 SIP — NMInfo, network management information 7.11 SIP — SCT, sequence count |
| 16 | 7.12 SIP — Result, result 8 Transport layer (TL) 8.1 SI — T_Data.req and T_Data.ind service interface |
| 17 | 8.2 SI — T_Data.req and T_Data.ind service interface parameter mapping |
| 18 | 8.3 TL — Service interface with T_Ptype parameter mapping 8.3.1 TL — T_Data.req and T_Data.ind with T_Ptype = NormalCom (T_Length = NULL) |
| 19 | 8.3.2 TL — T_Data.req and T_Data.ind with T_Ptype = NormalCom (T_Length ≥ ‘0’) |
| 20 | 8.3.3 TL — T_Data.req and T_Data.ind interface with T_Ptype = DiagNodeCfg |
| 21 | 8.4 TL — Internal operation 8.5 TL — T_PDU 8.5.1 TL — T_PDU definition 8.5.2 TL — T_PCI definition |
| 22 | 8.6 TL — Function models 8.6.1 TL — Transmission logic |
| 23 | 8.6.2 TL — Reception logic |
| 24 | 8.7 TL — Error detection 9 Network layer (NL) 9.1 SI — N_Data.req and N_Data.ind service interface |
| 25 | 9.2 SI — N_Data.req and N_Data.ind service interface parameter mapping |
| 26 | 9.3 NL — Service interface with N_Ptype parameter mapping 9.3.1 NL — N_Data.req and N_Data.ind with N_Ptype = NormalCom (N_Length = NULL) |
| 27 | 9.3.2 TL — N_Data.req and N_Data.ind with N_Ptype = NormalCom (N_Length ≥ ‘0’) |
| 28 | 9.3.3 NL — N_Data.req and N_Data.ind interface with N_Ptype = DiagNodeCfg |
| 29 | 9.4 NL — Internal operation 9.5 NL — N_PDU 9.5.1 NL — N_PDU definition 9.5.2 NL — N_NAD definition |
| 30 | 9.6 NL — Function models 9.6.1 NL — Transmission logic 9.6.2 NL — Reception logic |
| 31 | 9.7 NL — Timing definition 9.7.1 NL — General 9.7.2 NL — Timing constraints |
| 32 | 9.7.3 NL — Timing parameters 9.8 NL — Error detection |
| 33 | Bibliography |
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ISO 20794-3:2020
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