MIPI_D-PHY_Specification_v1.00.00资源-CSDN文库

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### MIPI D-PHY Specification v1.00.00 #### 概述 MIPI D-PHY（Display Port Physical Layer）是MIPI联盟制定的一种物理层接口标准，旨在为移动设备提供一种高速、低功耗的数据传输机制。此版本（v1.00.00）于2009年5月14日发布，并于同年9月22日获得MIPI董事会批准。本规范主要针对移动设备中的显示和摄像头接口设计。 #### 重要声明在正式介绍规范细节之前，需要注意的是文档开头包含了一段重要声明。该声明强调了此文档为正式通过MIPI联盟董事会批准的规范，同时提醒实施者注意以下几点： - **稳定性与可靠性**：MIPI PHY工作组认为D-PHY v1.00.00版本是稳定且可靠的。 - **推荐版本**：MIPI联盟强烈建议成员公司在实施时使用此版本（v1.00.00），而不是先前版本（如v0.65或v0.90），后者已被取代。 - **技术变更**：虽然预计不会有重大功能性的技术变更，但文档仍可能会进行进一步的技术更新。 - **初始化要求**：D-PHY规范要求上电后的通道需同时初始化，这一点在某些协议规范中可能未提及，但在D-PHY规范中将持续保留直到所有相关协议完成更新。 - **版权与保密**：文档明确了版权归属和保密要求。 #### 规范概述 MIPI D-PHY v1.00.00规范详细规定了D-PHY接口的设计准则和技术要求，包括但不限于： - **高速数据传输**：支持多种数据速率，满足不同应用场景的需求，例如高清视频传输等。 - **低功耗设计**：通过优化电源管理策略来降低功耗，延长移动设备电池寿命。 - **灵活的配置选项**：允许用户根据实际需求选择不同的配置参数，提高系统的灵活性。 - **可靠性和兼容性**：确保与其他MIPI协议（如DSI、CSI等）的良好兼容性，并提供高度可靠的通信链路。 #### 技术细节 1. **物理层架构**：D-PHY采用了多车道（Lane）的设计，每个车道可以独立运行，支持高速数据传输。车道的数量可以根据具体应用需求灵活配置。 2. **数据编码方式**：规范中定义了多种数据编码方案，包括差分曼彻斯特编码（Differential Manchester Encoding）等，以实现高效的数据传输。 3. **信号完整性**：为了保证信号质量，D-PHY规范还对信号的完整性和干扰防护进行了详细规定。 4. **电源管理**：规范提供了电源管理的指导原则，帮助设计人员优化设备的功耗表现。 5. **初始化与配置**：对于系统初始化过程，D-PHY规定了特定的序列和步骤，确保系统能够稳定启动。 6. **错误检测与纠正**：为了保证数据传输的准确性，D-PHY规范中还包含了错误检测和纠正机制的相关描述。 7. **兼容性测试**：文档中还提供了兼容性测试指南，以确保不同厂商的产品之间能够顺利通信。 #### 结论 MIPI D-PHY Specification v1.00.00是一份全面详尽的物理层接口规范，不仅定义了高速、低功耗数据传输的标准，还考虑到了系统的稳定性、兼容性及未来技术发展的可能性。对于从事移动设备开发的技术人员来说，这份规范是不可或缺的重要资源。随着技术的进步，未来版本的D-PHY规范可能会继续进行改进和完善，以适应更广泛的应用场景。

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22-Sep-2009

MIPI Alliance Specification for

D-PHY

Version 1.00.00 – 14 May 2009

MIPI Board Approved 22 September 2009

* Caution to Implementers *

This document is a MIPI

Specification formally approved by the MIPI Alliance Board of Directors

per the process defined in the MIPI Alliance Bylaws. However, implementers should be aware of

the following:

It is the good faith expectation of the MIPI PHY Working Group that D-PHY v1.00.00 is stable and

robust. The MIPI Alliance currently recommends that any member companies considering

implementation of D-PHY base their work on this version of the specification (v1.00.00).

MIPI Alliance strongly recommends that member companies NOT implement previously adopted

D-PHY specification v0.65 or D-PHY specification v0.90 which are superseded by this version

(v1.00.00).

It is the good faith expectation of the MIPI PHY WG that there will be no significant functional

changes to the fundamental technology described in this specification.

The D-PHY specification requires that powered-up Lanes be initialized simultaneously. However,

some corresponding protocol specifications may not mention this fact. The D-PHY specification

will continue to describe this requirement until all corresponding protocol specifications are

updated.

MIPI Alliance Member Confidential.

Version 1.00.00 14-May-2009 MIPI Alliance Specification for D-PHY

MIPI Alliance Member Confidential.

NOTICE OF DISCLAIMER 1

The material contained herein is not a license, either expressly or impliedly, to any IPR owned or 2

controlled by any of the authors or developers of this material or MIPI

. The material contained herein is 3

provided on an “AS IS” basis and to the maximum extent permitted by applicable law, this material is 4

provided AS IS AND WITH ALL FAULTS, and the authors and developers of this material and MIPI 5

hereby disclaim all other warranties and conditions, either express, implied or statutory, including, but not 6

limited to, any (if any) implied warranties, duties or conditions of merchantability, of fitness for a 7

particular purpose, of accuracy or completeness of responses, of results, of workmanlike effort, of lack of 8

viruses, and of lack of negligence. 9

All materials contained herein are protected by copyright laws, and may not be reproduced, republished, 10

distributed, transmitted, displayed, broadcast or otherwise exploited in any manner without the express 11

prior written permission of MIPI Alliance. MIPI, MIPI Alliance and the dotted rainbow arch and all related 12

trademarks, tradenames, and other intellectual property are the exclusive property of MIPI Alliance and 13

cannot be used without its express prior written permission. 14

ALSO, THERE IS NO WARRANTY OF CONDITION OF TITLE, QUIET ENJOYMENT, QUIET 15

POSSESSION, CORRESPONDENCE TO DESCRIPTION OR NON-INFRINGEMENT WITH 16

REGARD TO THIS MATERIAL OR THE CONTENTS OF THIS DOCUMENT. IN NO EVENT WILL 17

ANY AUTHOR OR DEVELOPER OF THIS MATERIAL OR THE CONTENTS OF THIS DOCUMENT 18

OR MIPI BE LIABLE TO ANY OTHER PARTY FOR THE COST OF PROCURING SUBSTITUTE 19

GOODS OR SERVICES, LOST PROFITS, LOSS OF USE, LOSS OF DATA, OR ANY INCIDENTAL, 20

CONSEQUENTIAL, DIRECT, INDIRECT, OR SPECIAL DAMAGES WHETHER UNDER 21

CONTRACT, TORT, WARRANTY, OR OTHERWISE, ARISING IN ANY WAY OUT OF THIS OR 22

ANY OTHER AGREEMENT, SPECIFICATION OR DOCUMENT RELATING TO THIS MATERIAL, 23

WHETHER OR NOT SUCH PARTY HAD ADVANCE NOTICE OF THE POSSIBILITY OF SUCH 24

DAMAGES. 25

Without limiting the generality of this Disclaimer stated above, the user of the contents of this Document is 26

further notified that MIPI: (a) does not evaluate, test or verify the accuracy, soundness or credibility of the 27

contents of this Document; (b) does not monitor or enforce compliance with the contents of this Document; 28

and (c) does not certify, test, or in any manner investigate products or services or any claims of compliance 29

with the contents of this Document. The use or implementation of the contents of this Document may 30

involve or require the use of intellectual property rights ("IPR") including (but not limited to) patents, 31

patent applications, or copyrights owned by one or more parties, whether or not Members of MIPI. MIPI 32

does not make any search or investigation for IPR, nor does MIPI require or request the disclosure of any 33

IPR or claims of IPR as respects the contents of this Document or otherwise. 34

Questions pertaining to this document, or the terms or conditions of its provision, should be addressed to: 35

MIPI Alliance, Inc. 36

c/o IEEE-ISTO 37

445 Hoes Lane 38

Piscataway, NJ 08854 39

Attn: Board Secretary 40

Version 1.00.00 14-May-2009 MIPI Alliance Specification for D-PHY

MIPI Alliance Member Confidential.

iii

Contents 42

Draft Version 1.00.00 – 14 May 2009.............................................................................................................. i

43

 Overview ............................................................................................................................................... 1444

1.1

 Scope ............................................................................................................................................. 1445

1.2

 Purpose .......................................................................................................................................... 1546

 Terminology .......................................................................................................................................... 1647

2.1

 Definitions ..................................................................................................................................... 1648

2.2

 Abbreviations ................................................................................................................................ 1749

2.3

 Acronyms ...................................................................................................................................... 1750

 D-PHY Introduction .............................................................................................................................. 2051

3.1

 Summary of PHY Functionality .................................................................................................... 2052

3.2

 Mandatory Functionality ............................................................................................................... 2053

 Architecture ........................................................................................................................................... 2154

4.1

 Lane Modules ................................................................................................................................ 2155

4.2

 Master and Slave ........................................................................................................................... 2256

4.3

 High Frequency Clock Generation ................................................................................................ 2257

4.4

 Clock Lane, Data Lanes and the PHY-Protocol Interface ............................................................. 2258

4.5

 Selectable Lane Options ................................................................................................................ 2359

4.6

 Lane Module Types ....................................................................................................................... 2560

4.6.1

 Unidirectional Data Lane ....................................................................................................... 2661

4.6.2

 Bi-directional Data Lanes ...................................................................................................... 2662

4.6.3

 Clock Lane ............................................................................................................................. 2763

4.7

 Configurations ............................................................................................................................... 2764

4.7.1

 Unidirectional Configurations ............................................................................................... 2965

4.7.2

 Bi-Directional Half-Duplex Configurations .......................................................................... 3166

4.7.3

 Mixed Data Lane Configurations .......................................................................................... 3267

 Global Operation ................................................................................................................................... 3368

Version 1.00.00 14-May-2009 MIPI Alliance Specification for D-PHY

MIPI Alliance Member Confidential.

5.1

 Transmission Data Structure ......................................................................................................... 3369

5.1.1

 Data Units .............................................................................................................................. 3370

5.1.2

 Bit order, Serialization, and De-Serialization ........................................................................ 3371

5.1.3

 Encoding and Decoding ........................................................................................................ 3372

5.1.4

 Data Buffering ....................................................................................................................... 3373

5.2

 Lane States and Line Levels .......................................................................................................... 3374

5.3

 Operating Modes: Control, High-Speed, and Escape .................................................................... 3475

5.4

 High-Speed Data Transmission ..................................................................................................... 3576

5.4.1

 Burst Payload Data ................................................................................................................ 3577

5.4.2

 Start-of-Transmission ............................................................................................................ 3578

5.4.3

 End-of-Transmission ............................................................................................................. 3679

5.4.4

 HS Data Transmission Burst ................................................................................................. 3680

5.5

 Bi-directional Data Lane Turnaround ............................................................................................ 3881

5.6

 Escape Mode ................................................................................................................................. 4182

5.6.1

 Remote Triggers .................................................................................................................... 4283

5.6.2

 Low-Power Data Transmission ............................................................................................. 4384

5.6.3

 Ultra-Low Power State .......................................................................................................... 4385

5.6.4

 Escape Mode State Machine .................................................................................................. 4386

5.7

 High-Speed Clock Transmission ................................................................................................... 4587

5.8

 Clock Lane Ultra-Low Power State ............................................................................................... 5088

5.9

 Global Operation Timing Parameters ............................................................................................ 5289

5.10

 System Power States ...................................................................................................................... 5690

5.11

 Initialization ................................................................................................................................... 5691

5.12

 Calibration ..................................................................................................................................... 5692

5.13

 Global Operation Flow Diagram ................................................................................................... 5793

5.14

 Data Rate Dependent Parameters (informative) ............................................................................ 5894

5.14.1

 Parameters Containing Only UI Values ................................................................................ 5995

5.14.2

 Parameters Containing Time and UI values .......................................................................... 5996