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5-Jan-2012

MIPI Alliance Member Confidential.

MIPI

Alliance Specification for

D-PHY

Version 1.1 – 7 November 2011

* NOTE TO IMPLEMENTERS *

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.

However, implementers should be aware of the following:

It is the good faith expectation of the MIPI PHY Working Group that D-PHY v1.1 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 (v1.1), which is

intended to supersede the previous version (v1.00.00).

This version of the Specification includes minor relaxations to the conformance ranges for several

key parameters. These modifications are intended to ease implementation for designs supporting

HS bitrates > 1 Gbps, allowing for slightly greater conformance margins for these parameters, to

better allow for process and manufacturing variations in these implementations.

In some cases the modified conformance limits apply only to operation at HS rates > 1 Gbps

(while the previous limits still apply to rates ≤ 1Gbps), while in other cases the new conformance

values are applicable to all HS rates. In all cases, the modified conformance limits have been

widened with respect to the previous values, so that any implementation conformant to these

parameters in the previous version of this Specification (v1.00.00) should also be conformant to

the modified limits defined in this version (v1.1).

The follow list includes all parameters with modified conformance limits:

• HS rise/fall time (t

, t

)

• VOD mismatch (ΔV

)

• TX data to clock skew (T

SKEW[TX]

)

• RX setup and hold times (T

SETUP[RX]

, T

HOLD[RX]

)

• TX and RX return loss (Sdd

, Sdd

)

Version 1.1 7-Nov-2011 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 12

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

Alliance and 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 REGARD 16

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

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

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 26

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

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

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

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

Document may involve or require the use of intellectual property rights ("IPR") including (but not limited 31

to) patents, patent applications, or copyrights owned by one or more parties, whether or not Members of 32

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

disclosure of any 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 1.1 7-Nov-2011 MIPI Alliance Specification for D-PHY

MIPI Alliance Member Confidential.

iii

Contents 41

Version 1.1 – 7 November 2011 ................................................................................................................ i

Introduction .................................................................................................................................... 10 43

1.1

Scope ...................................................................................................................................... 10 44

1.2

Purpose ................................................................................................................................... 11 45

Terminology ................................................................................................................................... 12 46

2.1

Definitions .............................................................................................................................. 12 47

2.2

Abbreviations .......................................................................................................................... 13 48

2.3

Acronyms ............................................................................................................................... 13 49

References ...................................................................................................................................... 16 50

D-PHY Overview ............................................................................................................................ 17 51

4.1

Summary of PHY Functionality............................................................................................... 17 52

4.2

Mandatory Functionality ......................................................................................................... 17 53

Architecture .................................................................................................................................... 18

5.1

Lane Modules ......................................................................................................................... 18 55

5.2

Master and Slave..................................................................................................................... 19 56

5.3

High Frequency Clock Generation........................................................................................... 19

5.4

Clock Lane, Data Lanes and the PHY-Protocol Interface ......................................................... 19 58

5.5

Selectable Lane Options .......................................................................................................... 20 59

5.6

Lane Module Types ................................................................................................................. 22

5.6.1

Unidirectional Data Lane ................................................................................................. 23 61

5.6.2

Bi-directional Data Lanes ................................................................................................ 23 62

5.6.3

Clock Lane ...................................................................................................................... 24 63

5.7

Configurations ........................................................................................................................ 24 64

5.7.1

Unidirectional Configurations.......................................................................................... 26 65

5.7.2

Bi-Directional Half-Duplex Configurations...................................................................... 28 66

5.7.3

Mixed Data Lane Configurations ..................................................................................... 29 67

Global Operation ............................................................................................................................ 30 68

6.1

Transmission Data Structure ................................................................................................... 30 69

6.1.1

Data Units ....................................................................................................................... 30 70

6.1.2

Bit order, Serialization, and De-Serialization ................................................................... 30 71

6.1.3

Encoding and Decoding ................................................................................................... 30 72

6.1.4

Data Buffering ................................................................................................................. 30 73

6.2

Lane States and Line Levels .................................................................................................... 30 74

6.3

Operating Modes: Control, High-Speed, and Escape ............................................................... 31 75

6.4

High-Speed Data Transmission ............................................................................................... 32 76

剩余120页未读，继续阅读

张盛锋

2023-07-25

MIPI-D-PHY规范文件提供了充分的实例和案例，使得读者能够更好地理解和运用该标准。

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