JEDEC STANDARD Universal Flash Storage (UFS) Version 3.0 iconductor JESD220D (Revision of JESD220C, March 2016) JANUARY 2018 JEDEC SOLID STATE TECHNOLOGY ASSOCIATION JEDEC DownloadedbyZhiqiang ([email protected])onMay31,2018,6:16pmPDT NOTICE JEDEC standards and publications contain material that has been prepared, reviewed, and approved through the JEDEC Board of Directors level and subsequently reviewed and approved by the JEDEC legal counsel. JEDEC standards and publications are designed to serve the public interest through eliminating improvement of products, and assisting the purchaser in selecting and obtaining with minimum delay the proper product for use by those other than JEDEC members, whether the standard is to be used either domestically or internationally JEDEC standards and publications are adopted without regard to whether or not their adoption may involve patents or articles, materials, or processes. By such action JEDEC does not assume any liability to any patent owner, nor does it assume any obligation whatever to parties adopting the JEDEC standards or publications. The information included in JEDEC standards and publications represents a sound approach to product specification and application, principally from the solid state device manufacturer viewpoint. Within the JEDEC organization there are procedures whereby a JEDEC standard or publication may be further processed and ultimately become an ANSI standard. No claims to be in conformance with this standard may be made unless all requirements stated in the standard are met. Inquiries, comments, and suggestions relative to the content of this JEDEC standard or publication should be addressed to JEDEC at the address below, or refer to www.jedec.org under Standards and Documents for alternative contact information. Published by @JEDEC Solid State Technology Association 2018 3103 North 10th Street Suite 240 South Arlington, VA 22201-2107 JEDEC retains the copyright on this material. By downloading this file the individual agrees not to charge for or resell the resulting material. PRICE: Contact JEDEC Printed in the U.S.A All rights reserved Downloaded by Zhiqiang Su ([email protected]) on May 31, 2018, 6:16 pm PDT PLEASE! DON'T VIOLATE THE LAW! (Beijing) 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. Downloaded by Zhiqiang Su ([email protected]) on May 31, 2018, 6:16 pm PDT Downloaded by Zhiqiang Su ([email protected]) on May 31, 2018, 6:16 pm PDT JEDEC Standard No. 220D UNIVERSAL FLASH STORAGE (UFS) Contents Page 1 Scope 1 2 Normative Reference 1 3 Terms and Definitions 2 3 Terms and Definitions (cont'd) 3.1 Acronyms 3 3.1 Acronyms (cont'd) 4 3.2 Conventions 4 3.3 Keywords 5 3.4 Abbreviations 5 4 Introduction 6 4.1 General Features 6 4.2 Interface Features 7 4.3 Functional Features 7 5 UFS Architecture Overview 8 5.1 UFS Top Level Architecture 8 5.2 UFS System Model 11 5.3 System Boot and Enumeration 11 5.4 UFS Interconnect (UIC) Layer 12 5.4.1 UFS Physical Layer Signals 12 5.4.2 MIPI UniPro 12 5.4.3 MIPI UniPro Related Attributes 13 5.5 UFS Transport Protocol (UTP) Layer 13 5.5.1 Architectural Model 14 5.6 UFS Application and Command Layer 18 5.7 Mechanical 19 6 UFS Electrical: Clock, Reset, Signals and Supplies 20 6.1 UFS Signals 20 6.2 Reset Signal 22 6.3 Power Supplies 22 6.4 Reference Clock 23 6.4 Reference Clock (cont'd) 24 6.4.1 HS Gear Rates 26 6.4.2 Host Controller requirements for reference clock generation 27 6.5 External Charge Pump Capacitors (Optional) 28 6.6 Absolute Maximum DC Ratings and Operating Conditions 29 7 Reset, Power-up and Power-down 30 7.1 Reset 30 7.1.1 Power-on Reset 30 7.1.2 Hardware Reset 31 7.1.3 EndPointReset 32 7.1.4 Logical Unit Reset 33 -i- Downloaded by Zhiqiang Su