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D-PHY specification v0.65 or D-PHY specification v0.90 which are superseded by this version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