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Confidential

Specification for

Camera Serial Interface 2

(CSI-2

)

Version 3.

31 May 201

MIPI Board Adopted 10 September 2019

This document is

a MIPI Specification. MIPI member companies’ rights and obligations apply to this

MIPI

Specification as defined in the MIPI Membership Agreement and MIPI Bylaws.

Further technical changes to this document are expected as work continues in the PHY Working Group.

Specification for CSI-2 Version 3.0

31-May-2019

Confidential

NOTICE OF DISCLAIMER

The material contained herein is provided on an “AS IS” basis. To the maximum extent permitted by

applicable law, this material is provided AS IS AND WITH ALL FAULTS, and the authors and developers

of this material and MIPI Alliance Inc. (“MIPI”) hereby disclaim all other warranties and conditions, either

express, implied or statutory, including, but not limited to, any (if any) implied warranties, duties or

conditions of merchantability, of fitness for a particular purpose, of accuracy or completeness of responses,

of results, of workmanlike effort, of lack of viruses, and of lack of negligence. ALSO, THERE IS NO

WARRANTY OR CONDITION OF TITLE, QUIET ENJOYMENT, QUIET POSSESSION,

CORRESPONDENCE TO DESCRIPTION OR NON-INFRINGEMENT WITH REGARD TO THIS

MATERIAL.

IN NO EVENT WILL ANY AUTHOR OR DEVELOPER OF THIS MATERIAL OR MIPI BE LIABLE TO

ANY OTHER PARTY FOR THE COST OF PROCURING SUBSTITUTE GOODS OR SERVICES, LOST

PROFITS, LOSS OF USE, LOSS OF DATA, OR ANY INCIDENTAL, CONSEQUENTIAL, DIRECT,

INDIRECT, OR SPECIAL DAMAGES WHETHER UNDER CONTRACT, TORT, WARRANTY, OR

OTHERWISE, ARISING IN ANY WAY OUT OF THIS OR ANY OTHER AGREEMENT RELATING TO

THIS MATERIAL, WHETHER OR NOT SUCH PARTY HAD ADVANCE NOTICE OF THE

POSSIBILITY OF SUCH DAMAGES.

The material contained herein is not a license, either expressly or impliedly, to any IPR owned or controlled

by any of the authors or developers of this material or MIPI. Any license to use this material is granted

separately from this document. This material is protected by copyright laws, and may not be reproduced,

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express prior written permission of MIPI Alliance. MIPI, MIPI Alliance and the dotted rainbow arch and all

related trademarks, service marks, tradenames, and other intellectual property are the exclusive property of

MIPI Alliance Inc. and cannot be used without its express prior written permission. The use or

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Without limiting the generality of the disclaimers stated above, users of this material are further notified that

MIPI: (a) does not evaluate, test or verify the accuracy, soundness or credibility of the contents of this

material; (b) does not monitor or enforce compliance with the contents of this material; and (c) does not

certify, test, or in any manner investigate products or services or any claims of compliance with MIPI

specifications or related material.

Questions pertaining to this material, or the terms or conditions of its provision, should be addressed to:

MIPI Alliance, Inc.

c/o IEEE-ISTO

445 Hoes Lane, Piscataway New Jersey 08854, United States

Attn: Managing Director

Version 3.0 Specification for CSI-2

31-May-2019

Confidential

Contents

Figures ........................................................................................................................ viii

Tables ..........................................................................................................................xv

Release History .............................................................................................................. xvii

1 Introduction .................................................................................................................1

1.1 Scope ............................................................................................................................... 1

1.2 Purpose ............................................................................................................................ 1

2 Terminology .................................................................................................................2

2.1 Use of Special Terms ....................................................................................................... 2

2.2 Definitions ....................................................................................................................... 2

2.3 Abbreviations ................................................................................................................... 3

2.4 Acronyms ......................................................................................................................... 3

3 References ....................................................................................................................6

4 Overview of CSI-2 .......................................................................................................7

5 CSI-2 Layer Definitions ..............................................................................................9

6 Camera Control Interface (CCI) ............................................................................. 11

6.1 CCI (I

C) Data Transfer Protocol .................................................................................. 12

6.1.1 CCI (I

C) Message Type ............................................................................................. 12

6.1.2 CCI (I

C) Read/Write Operations ............................................................................... 13

6.2 CCI (I3C) Data Transfer Protocol .................................................................................. 19

6.2.1 CCI (I3C SDR) Data Transfer Protocol ...................................................................... 19

6.2.2 CCI (I3C DDR) Data Transfer Protocol ..................................................................... 27

6.3 CCI (I3C) Error Detection and Recovery ...................................................................... 37

6.3.1 CCI (I3C SDR) Error Detection and Recovery Method ............................................. 37

6.3.2 CCI (I3C DDR) Error Detection and Recovery Method ............................................ 39

6.3.3 Error Detection and Recovery for CCI (I3C) Master Devices .................................... 45

6.4 CCI (I

C) Slave Addresses ............................................................................................. 45

6.5 CCI (I3C) Slave Addresses ............................................................................................ 45

6.6 CCI Multi-Byte Registers .............................................................................................. 46

6.6.1 Overview ..................................................................................................................... 46

6.6.2 Transmission Byte Order for Multi-Byte Register Values .......................................... 48

6.6.3 Multi-Byte Register Protocol (Informative) ............................................................... 49

6.7 CCI I/O Electrical and Timing Specifications ............................................................... 53

7 Physical Layer ...........................................................................................................57

7.1 D-PHY Physical Layer Option ...................................................................................... 57

7.2

C-PHY Physical Layer Option ....................................................................................... 58

7.3 PHY Support for the CSI-2 Unified Serial Link (USL) Feature .................................... 59

7.3.1 D-PHY Support Requirements for USL Feature ......................................................... 59

7.3.2 C-PHY Support Requirements for USL Feature ......................................................... 60

Specification for CSI-2 Version 3.0

31-May-2019

Confidential

8 Multi-Lane Distribution and Merging ....................................................................61

8.1 Lane Distribution for the D-PHY Physical Layer Option .............................................. 66

8.2 Lane Distribution for the C-PHY Physical Layer Option .............................................. 69

8.3 Multi-Lane Interoperability ........................................................................................... 71

8.3.1 C-PHY Lane De-Skew ................................................................................................ 73

9 Low Level Protocol ....................................................................................................75

9.1 Low Level Protocol Packet Format ............................................................................... 76

9.1.1 Low Level Protocol Long Packet Format ................................................................... 76

9.1.2 Low Level Protocol Short Packet Format ................................................................... 81

9.2 Data Identifier (DI) ........................................................................................................ 82

9.3 Virtual Channel Identifier .............................................................................................. 82

9.4 Data Type (DT) .............................................................................................................. 84

9.5 Packet Header Error Correction Code for D-PHY Physical Layer Option .................... 85

9.5.1 General Hamming Code Applied to Packet Header .................................................... 85

9.5.2 Hamming-Modified Code ........................................................................................... 86

9.5.3 ECC Generation on TX Side ....................................................................................... 90

9.5.4 Applying ECC on RX Side (Informative) .................................................................. 91

9.6 Checksum Generation .................................................................................................... 93

9.7 Packet Spacing ............................................................................................................... 95

9.8 Synchronization Short Packet Data Type Codes............................................................ 96

9.8.1 Frame Synchronization Packets .................................................................................. 96

9.8.2 Line Synchronization Packets ..................................................................................... 97

9.9 Generic Short Packet Data Type Codes ......................................................................... 99

9.10 Packet Spacing Examples Using the Low Power State ............................................... 100

9.11 Latency Reduction and Transport Efficiency (LRTE) ................................................. 103

9.11.1 Interpacket Latency Reduction (ILR) ....................................................................... 103

9.11.2 Using ILR and Enhanced Transport Efficiency Together ......................................... 113

9.11.3 LRTE Register Tables ............................................................................................... 114

9.12 Unified Serial Link (USL) ........................................................................................... 117

9.12.1 USL Technical Overview .......................................................................................... 118

9.12.2 USL Command Payload Constructs ......................................................................... 119

9.12.3 USL Operation Procedures ....................................................................................... 122

9.12.4 Monitoring USL Command Transport Integrity ....................................................... 124

9.12.5 USL Powerup / Reset, SNS Configuration, and Mode Switching ............................ 125

9.13 Data Scrambling .......................................................................................................... 137

9.13.1 CSI-2 Scrambling for D-PHY ................................................................................... 138

9.13.2

CSI-2 Scrambling for C-PHY ................................................................................... 139

9.13.3 Scrambling Details .................................................................................................... 142

9.14 Smart Region of Interest (SROI) ................................................................................. 147

9.14.1 Overview of SROI Frame Format............................................................................. 147

9.14.2 Transmission of SROI Embedded Data Packet ........................................................ 149

9.14.3 SROI Packet Detection Options................................................................................ 150

9.14.4 SROI Use Cases (Informative) ................................................................................. 152

9.14.5 Format of SROI Embedded Data Packet (SEDP) ..................................................... 154

9.15 Packet Data Payload Size Rules .................................................................................. 157

9.16 Frame Format Examples .............................................................................................. 158

Versi o n 3.0 Specification for CSI-2

31-May-2019

Confidential

9.17 Data Interleaving ......................................................................................................... 161

9.17.1 Data Type Interleaving .............................................................................................. 161

9.17.2 Virtual Channel Identifier Interleaving ..................................................................... 164

10 Color Spaces.............................................................................................................165

10.1 RGB Color Space Definition ....................................................................................... 165

10.2 YUV Color Space Definition ....................................................................................... 165

11 Data Formats ...........................................................................................................167

11.1 Generic 8-bit Long Packet Data Types ........................................................................ 169

11.1.1 Null and Blanking Data ............................................................................................ 169

11.1.2 Embedded Information ............................................................................................. 170

11.1.3 Generic Long Packet Data Types 1 Through 4 ......................................................... 170

11.2 YUV Image Data ......................................................................................................... 171

11.2.1 Legacy YUV420 8-bit ............................................................................................... 171

11.2.2 YUV420 8-bit ........................................................................................................... 174

11.2.3 YUV420 10-bit ......................................................................................................... 178

11.2.4 YUV422 8-bit ........................................................................................................... 180

11.2.5 YUV422 10-bit ......................................................................................................... 182

11.3 RGB Image Data .......................................................................................................... 184

11.3.1 RGB888 .................................................................................................................... 185

11.3.2 RGB666 .................................................................................................................... 187

11.3.3 RGB565 .................................................................................................................... 189

11.3.4 RGB555 .................................................................................................................... 191

11.3.5 RGB444 .................................................................................................................... 192

11.4 RAW Image Data ......................................................................................................... 193

11.4.1 RAW6 ....................................................................................................................... 194

11.4.2 RAW7 ....................................................................................................................... 195

11.4.3 RAW8 ....................................................................................................................... 196

11.4.4 RAW10 ..................................................................................................................... 197

11.4.5 RAW12 ..................................................................................................................... 199

11.4.6 RAW14 ..................................................................................................................... 200

11.4.7 RAW16 ..................................................................................................................... 202

11.4.8 RAW20 ..................................................................................................................... 203

11.4.9 RAW24 ..................................................................................................................... 205

11.5 User Defined Data Formats ......................................................................................... 206

12 Recommended Memory Storage ............................................................................209

12.1 General/Arbitrary Data Reception ............................................................................... 209

12.2 RGB888 Data Reception ............................................................................................. 210

12.3 RGB666 Data Reception ............................................................................................. 210

12.4 RGB565 Data Reception ............................................................................................. 211

12.5 RGB555 Data Reception ............................................................................................. 211

12.6 RGB444 Data Reception ............................................................................................. 212

12.7 YUV422 8-bit Data Reception .................................................................................... 212

12.8 YUV422 10-bit Data Reception .................................................................................. 213

12.9 YUV420 8-bit (Legacy) Data Reception ..................................................................... 214

12.10 YUV420 8-bit Data Reception .................................................................................... 215

12.11 YUV420 10-bit Data Reception .................................................................................. 216

12.12 RAW6 Data Reception ................................................................................................. 217

剩余337页未读，继续阅读

z1072978274

2020-06-02

很不错，最新的版本，学习一下

Eric.Wu

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