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mipi DPHY2.0 spec Specification for D-PHY Version 2.0 23 November 2015
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Copyright © 2007-2016 MIPI Alliance, Inc.
All rights reserved.
Confidential
Specification for
D-PHY
SM
Version
2.0
23 November 201
5
MIPI Board Adopte
d 08 March 2016
Further technical changes to t
his document are expected as work continues in the Phy Working Group.

Specification for D-PHY Version 2.0
23-Nov-2015
ii Copyright © 2007-2016 MIPI Alliance, Inc.
All rights reserved.
Confidential
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Attn: Board Secretary

Version 2.0 Specification for D-PHY
23-Nov-2015
Copyright © 2007-2016 MIPI Alliance, Inc. iii
All rights reserved.
Confidential
Contents
Contents ............................................................................................................................ iii
Figures .............................................................................................................................. vii
Tables ...................................................................................................................................x
Release History ................................................................................................................ xii
1 Introduction .................................................................................................................1
1.1 Scope ............................................................................................................................... 1
1.2 Purpose ............................................................................................................................ 2
2 Terminology .................................................................................................................3
2.1 Use of Special Terms ....................................................................................................... 3
2.2 Definitions ....................................................................................................................... 3
2.3 Abbreviations ................................................................................................................... 4
2.4 Acronyms ......................................................................................................................... 4
3 References ....................................................................................................................6
4 D-PHY Overview .........................................................................................................7
4.1 Summary of PHY Functionality ...................................................................................... 7
4.2 Mandatory Functionality ................................................................................................. 7
5 Architecture .................................................................................................................8
5.1 Lane Modules .................................................................................................................. 8
5.2 Master and Slave .............................................................................................................. 9
5.3 High Frequency Clock Generation .................................................................................. 9
5.4 Clock Lane, Data Lanes and the PHY-Protocol Interface ................................................ 9
5.5 Selectable Lane Options ................................................................................................ 10
5.6 Lane Module Types ....................................................................................................... 12
5.6.1 Unidirectional Data Lane ........................................................................................... 13
5.6.2 Bi-directional Data Lanes ........................................................................................... 13
5.6.3 Clock Lane.................................................................................................................. 14
5.7 Configurations ............................................................................................................... 14
5.7.1 Unidirectional Configurations .................................................................................... 16
5.7.2 Bi-Directional Half-Duplex Configurations ............................................................... 17
5.7.3 Mixed Data Lane Configurations ............................................................................... 18
6 Global Operation .......................................................................................................19
6.1 Transmission Data Structure .......................................................................................... 19
6.1.1 Data Units ................................................................................................................... 19
6.1.2 Bit order, Serialization, and De-Serialization ............................................................. 19
6.1.3 Encoding and Decoding ............................................................................................. 19
6.1.4 Data Buffering ............................................................................................................ 19
6.2 Lane States and Line Levels .......................................................................................... 19
6.3 Operating Modes: Control, High-Speed, and Escape .................................................... 20
6.4 High-Speed Data Transmission ..................................................................................... 21
6.4.1 Burst Payload Data ..................................................................................................... 21
6.4.2 Start-of-Transmission ................................................................................................. 21
6.4.3 End-of-Transmission .................................................................................................. 22

Specification for D-PHY Version 2.0
23-Nov-2015
iv Copyright © 2007-2016 MIPI Alliance, Inc.
All rights reserved.
Confidential
6.4.4 HS Data Transmission Burst....................................................................................... 22
6.5 Bi-directional Data Lane Turnaround ............................................................................ 24
6.6 Escape Mode .................................................................................................................. 27
6.6.1 Remote Triggers ......................................................................................................... 28
6.6.2 Low-Power Data Transmission .................................................................................. 28
6.6.3 Ultra-Low Power State ............................................................................................... 29
6.6.4 Escape Mode State Machine ...................................................................................... 29
6.7 High-Speed Clock Transmission ................................................................................... 31
6.8 Clock Lane Ultra-Low Power State ............................................................................... 36
6.9 Global Operation Timing Parameters ............................................................................ 37
6.10 System Power States ...................................................................................................... 41
6.11 Initialization ................................................................................................................... 41
6.12 Calibration ..................................................................................................................... 41
6.13 Global Operation Flow Diagram ................................................................................... 45
6.14 Data Rate Dependent Parameters (informative) ............................................................ 47
6.14.1 Parameters Containing Only UI Values .................................................................. 48
6.14.2 Parameters Containing Time and UI values ........................................................... 48
6.14.3 Parameters Containing Only Time Values .............................................................. 48
6.14.4 Parameters Containing Only Time Values That Are Not Data Rate Dependent ..... 49
6.15 Interoperability .............................................................................................................. 49
7 Fault Detection ..........................................................................................................50
7.1 Contention Detection ..................................................................................................... 50
7.2 Sequence Error Detection .............................................................................................. 50
7.2.1 SoT Error .................................................................................................................... 51
7.2.2 SoT Sync Error ........................................................................................................... 51
7.2.3 EoT Sync Error ........................................................................................................... 51
7.2.4 Escape Mode Entry Command Error .......................................................................... 51
7.2.5 LP Transmission Sync Error ....................................................................................... 51
7.2.6 False Control Error ..................................................................................................... 51
7.3 Protocol Watchdog Timers (informative) ...................................................................... 51
7.3.1 HS RX Timeout .......................................................................................................... 51
7.3.2 HS TX Timeout .......................................................................................................... 51
7.3.3 Escape Mode Timeout ................................................................................................ 51
7.3.4 Escape Mode Silence Timeout ................................................................................... 51
7.3.5 Turnaround Errors ...................................................................................................... 52
8 Interconnect and Lane Configuration .....................................................................53
8.1 Lane Configuration ........................................................................................................ 53
8.2 Boundary Conditions ..................................................................................................... 53
8.3 Definitions ..................................................................................................................... 53
8.4 S-parameter Specifications ............................................................................................ 54
8.5 Characterization Conditions .......................................................................................... 54
8.6 Interconnect Specifications ............................................................................................ 54
8.6.1 Differential Characteristics ......................................................................................... 55
8.6.2 Common-mode Characteristics .................................................................................. 57
8.6.3 Intra-Lane Cross-Coupling ......................................................................................... 57
8.6.4 Mode-Conversion Limits ............................................................................................ 57
8.6.5 Inter-Lane Cross-Coupling ......................................................................................... 57

Version 2.0 Specification for D-PHY
23-Nov-2015
Copyright © 2007-2016 MIPI Alliance, Inc. v
All rights reserved.
Confidential
8.6.6 Inter-Lane Static Skew ............................................................................................... 58
8.7 Driver and Receiver Characteristics .............................................................................. 59
8.7.1 Differential Characteristics ......................................................................................... 59
8.7.2 Common-Mode Characteristics .................................................................................. 60
8.7.3 Mode-Conversion Limits ............................................................................................ 61
9 Electrical Characteristics .........................................................................................62
9.1 Driver Characteristics .................................................................................................... 63
9.1.1 High-Speed Transmitter .............................................................................................. 63
9.1.2 Low-Power Transmitter .............................................................................................. 69
9.2 Receiver Characteristics ................................................................................................ 72
9.2.1 High-Speed Receiver .................................................................................................. 72
9.2.2 Low-Power Receiver .................................................................................................. 74
9.3 Line Contention Detection ............................................................................................. 75
9.4 Input Characteristics ...................................................................................................... 76
10 High-Speed Data-Clock Timing ............................................................................78
10.1 High-Speed Clock Timing ............................................................................................. 78
10.2 Forward High-Speed Data Transmission Timing .......................................................... 79
10.2.1 Data-Clock Timing Specifications.......................................................................... 80
10.2.2 Normative Spread Spectrum Clocking (SSC) ........................................................ 81
10.2.3 Transmitter Eye Diagram Specification ................................................................. 82
10.2.4 Receiver Eye Diagram Specification ...................................................................... 84
10.3 Reverse High-Speed Data Transmission Timing ........................................................... 85
10.4 Operating Modes: Data rate and Channel Support Guidance ........................................ 86
11 Regulatory Requirements ......................................................................................88
12 Built-In HS Test Mode (Informative) ...................................................................89
12.1 Introduction.................................................................................................................... 89
12.2 Entering the HS Test Mode ............................................................................................ 90
12.3 HS Test Mode ................................................................................................................ 90
12.4 Special Case: Multi-Lane Testing .................................................................................. 92
12.5 Exiting from HS Test Mode ........................................................................................... 92
Annex A Logical PHY-Protocol Interface Description (informative) ...................93
A.1 Signal Description ......................................................................................................... 93
A.2 High-Speed Transmit from the Master Side ................................................................ 103
A.3 High-Speed Receive at the Slave Side ......................................................................... 104
A.4 High-Speed Transmit from the Slave Side .................................................................. 104
A.5 High-Speed Receive at the Master Side ...................................................................... 105
A.6 Low-Power Data Transmission .................................................................................... 105
A.7 Low-Power Data Reception ......................................................................................... 106
A.8 Turn-around ................................................................................................................. 106
A.9 Calibration ................................................................................................................... 107
A.10 Optical Link Support ................................................................................................... 109
A.10.1 System Setup ........................................................................................................ 109
A.10.2 Serializer and De-Serializer Block Diagrams ....................................................... 110
A.10.3 Timing Constraints ............................................................................................... 111
A.10.4 System Constraints ............................................................................................... 112
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