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mipi_RFFE_specification_3.0.pdf

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本文是MIPI Alliance公司发布的关于射频前端控制接口(RFFESM)的机密规范,版本为3.0,发布日期为2019年12月1日,MIPI董事会于2020年4月27日通过。此规范适用于实现者,旨在提供一种标准化的接口协议,以便于射频前端控制器与其他系统之间的通信。本文版权归MIPI Alliance公司所有,未经授权不得复制或传播。
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Copyright © 2009–2020 MIPI Alliance, Inc.
All rights reserved.
Confidential
Specification for
RF Front-End Control Interface
(RFFE
SM
)
Version 3.0 – 1 December 2019
MIPI Board Adopted 27-April-2020
* NOTE TO IMPLEMENTERS *
This document is a MIPI Specification. MIPI member companies’ rights and obligations apply to this document as
defined in the MIPI Membership Agreement and MIPI Bylaws.

Copyright © 2009–2020 MIPI Alliance, Inc.
All rights reserved.
Confidential
This page intentionally left blank.

Copyright © 2009–2020 MIPI Alliance, Inc.
All rights reserved.
Confidential
Specification for
RF Front-End Control Interface
(RFFE
SM
)
Version 3.
0
1 December 201
9
MIPI Board Adopted 27-April-
2020
Further technical changes to this document are expected as work continues in the RFFE Working Group.

Specification for RFFE Version 3.0
01-Dec-2019
ii Copyright © 2009–2020 MIPI Alliance, Inc.
All rights reserved.
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
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conditions of merchantability, of fitness for a particular purpose, of accuracy or completeness of responses,
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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
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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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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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including (but not limited to) patents, patent applications, or copyrights owned by one or more parties,
whether or not members of MIPI. MIPI does not make any search or investigation for IPR, nor does MIPI
require or request the disclosure of any IPR or claims of IPR as respects the contents of this material 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 RFFE
01-Dec-2019
Copyright © 2009–2020 MIPI Alliance, Inc. iii
All rights reserved.
Confidential
Contents
Figures ............................................................................................................................................ vi
Tables .............................................................................................................................................. ix
Release History .............................................................................................................................. xi
1 Introduction ............................................................................................................................. 1
1.1 Scope ............................................................................................................................... 3
1.2 Purpose ............................................................................................................................ 3
2 Terminology ............................................................................................................................. 4
2.1 Definitions ....................................................................................................................... 6
2.2 Abbreviations ................................................................................................................. 12
2.3 Acronyms ....................................................................................................................... 13
3 References .............................................................................................................................. 15
4 Architecture & Operations ................................................................................................... 17
4.1 Overview........................................................................................................................ 17
4.1.1 Basic Pin Set and Definitions ..................................................................................... 21
4.1.2 Frequencies of Operation and RFFE Speed Rates ...................................................... 22
4.1.3 I/O Architectures and VIO Configurations ................................................................. 23
4.1.4 Physical Operating Distances in RFFE ...................................................................... 28
4.2 RFFE Operations ........................................................................................................... 30
4.2.1 RFFE Operating States ............................................................................................... 30
4.2.2 RFFE Operating Modes .............................................................................................. 32
4.2.3 RFFE Interface Configuration Changes and Timing .................................................. 34
4.2.4 Device Identification .................................................................................................. 35
4.2.5 Overview of Triggers .................................................................................................. 36
4.2.6 Functional Description of Timed Triggers .................................................................. 40
4.2.7 Overview of Mappable Triggers ................................................................................. 48
4.2.8 Overview of Masked Writes ....................................................................................... 56
4.2.9 Multi-Master Operations ............................................................................................ 59
4.3 RFFE Protocol Structure Overview ............................................................................... 67
4.3.1 Bit Ordering on an RFFE Bus .................................................................................... 67
4.3.2 Command Sequence Construction.............................................................................. 67
4.3.3 Bus Idle Condition ...................................................................................................... 77
4.4 RFFE Register Space ..................................................................................................... 80
5 Physical Layer ....................................................................................................................... 83
5.1 Device I/O Structures .................................................................................................... 83
5.1.1 Device I/O Configuration for Multiple Slaves and Masters ....................................... 85
5.2 Signaling Requirements for Device-Level I/O
.............................................................. 86
5.3 VIO Supply Requirements ............................................................................................. 88
5.3.1 Power-On (STARTUP) ............................................................................................... 90
5.3.2 Power-Off (SHUTDOWN) ......................................................................................... 91
5.3.3 Power-On Reset .......................................................................................................... 93
5.4 Timing Requirements .................................................................................................... 95
5.4.1 RFFE Clock (SCLK) .................................................................................................. 97
5.4.2 RFFE Data (SDATA) ................................................................................................ 106
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