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JEDEC标准JESD220-2A
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JEDEC STANDARD Universal Flash Storage (UFS) Card Extension
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JEDEC
STANDARD
Universal Flash Storage (UFS)
Card Extension
Version 1.1
JESD220-2A
(Revision of JESD220-2, MARCH 2016)
JANUARY 2018
JEDEC SOLID STATE TECHNOLOGY ASSOCIATION
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NOTICE
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through the JEDEC Board of Directors level and subsequently reviewed and approved by the JEDEC
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JEDEC standards and publications are designed to serve the public interest through eliminating
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Published by
©JEDEC Solid State Technology Association 2018
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JEDEC retains the copyright on this material. By downloading this file the individual agrees not to charge
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This document is copyrighted by JEDEC and may not be
reproduced without permission.
For information, contact:
JEDEC Solid State Technology Association
3103 North 10th Street
Suite 240 South
Arlington, VA 22201-2107
or refer to www.jedec.org under Standards-Documents/Copyright Information.
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GigaDevice Semiconductor (Beijing)
JEDEC Standard No. 220-2A
-i-
UNIVERSAL FLASH STORAGE (UFS) CARD EXTENSION, Version 1.1
CONTENTS
Foreward i
Introduction i
1 Scope 1
2 Normative Reference 1
3 Terms and Definitions 1
3.1 Acronyms 2
3.2 Keywords 2
3.3 Abbreviations 3
3.4 Conventions 3
4 Introduction 4
4.1 Overview 4
4.2 Functional Features 4
5 UFS Card System Architecture 5
5.1 Overview 5
5.2 UFS Card Signals 5
6 UFS Card Design 6
7 Supported Features of UFS Card 9
8 UFS Card Initialization 10
8.1 Initialization Sequence 11
9 Power Consumption 12
Annex A (informative) Host Guideline for UFS Card Detection 13
Annex B (informative) Differences between revisions 14
FIGURES
Figure 5.1 — UFS Card Block Diagram 5
Figure 6.1 — UFS Card Top View 6
Figure 6.2 — UFS Card Bottom View 7
Figure 6.3 — UFS Card Side View 8
Figure 8.1 — UFS Card Initialization 10
Figure 8.2 — UFS Card Initialization Sequence 11
TABLES
Table 5.1 — Signal Name and Definitions 5
Table 7.1 — Comparison of embedded UFS and UFS Card 9
Table 9.1— Maximum Power Consumption ( in RMS and Peak ) 12
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