Transport Layer (L4) of MIPI Unipro - An Introduction
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The document provides an overview of the transport layer (L4) of the MIPI UniPro protocol. It discusses the functionality of the transport layer, including segmentation and reassembly, addressing, connections, error handling, and flow control. It also describes the structure of transport protocol data units and some of the protocol's features, such as address translation, segmentation, reassembly, and explicit flow control. The implementation of the transport layer in Arrow's layered building block framework is also briefly mentioned.
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Transport Layer (L4) of MIPI Unipro - An Introduction
- 1. April 2014 Transport Layer (L4) Of MIPI UniPro Chandra Bhushan Singh An Introduction
- 2. Presenta)on Outline • Introduc)on • Func)onality • Structure of T_PDU • Protocol Features • Segment Transmission • Segment Recep)on • Arrow L4 BFM Implementa)on • Benefits 2
- 3. MIPI Unipro Transport Layer (L4) • Top Layer of MIPI UniPro (Unified Protocol) • Connects the Applica)on to MIPI UniPro Stack 3
- 4. Applica)on 4
- 5. Transport Layer Model 5
- 6. Func)onality • Segmenta)on and Reassembly • Addressing • Segment format recogni)on • Connec)ons • End-‐to-‐End flow-‐control • Error handling 6
- 7. Structure of T_PDU 7
- 8. Cport ASributes 8 • T_PeerDeviceID • T_PeerCPortID • T_Connec)onState • T_TrafficClass • T_CPortFlags • T_TxTokenValue • T_RxTokenValue • T_LocalBufferSpace • T_PeerBufferSpace • T_CreditsToSend • T_CPortMode
- 9. Protocol Features • Connec)on Management Feature • Address Transla)on Feature • Segmenta)on Feature • Reassembly Feature • T_PDU Composi)on Feature • T_PDU Decomposi)on Feature • Header Format Analysis Feature • Explicit Flow Control Features 9
- 10. Address Transla)on Feature • CPortIDs • T_PeerCPortID • DeviceIDOffset • DestCPortID_Enc 10
- 11. Segmenta)on Feature 11
- 12. Reassembly Feature 12
- 13. T_PDU Composi)on Feature 13
- 14. T_PDU Decomposi)on Feature 14
- 15. Explicit Flow Control Features • End-‐to-‐End Flow Control Feature • Controlled Segment Dropping Feature • CPort Safety Valve 15
- 16. MIPI UniPro Test Feature 16
- 17. Arrow L4 BFM Implementa)on 17
- 18. Benefits • Generic -‐ Can be used for a wide range of applica)ons and data traffic types • Scalable -‐ From individual links to a network with up to 128 UniPro devices • Bandwidth U)liza)on -‐ Provides features to manage conges)on and control arbitra)on • Shareable -‐ Different traffic types and UniPro devices can share pins and wires • Testable -‐ UniPro mandates features to facilitate automated conformance tes)ng 18
- 19. The End 19