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This document replaces all prior versions; however, JESD223E August 2022 (version 4.0) remains available for reference purposes.

This standard describes a functional specification of the Host Controller Interface (HCI) for Universal Flash Storage (UFS). The objective of UFSHCI is to provide a uniform interface method of accessing the UFS hardware capabilities so that a standard/common Driver can be provided for the Host Controller. The common Driver would work with UFS host controller from any vendor. This standard includes a description of the hardware/software interface between system software and the host controller hardware. It is intended for hardware designers, system builders and software developers. This standard is a companion document to [UFS], Universal Flash Storage (UFS). The reader is assumed to be familiar with [UFS], [MIPI-UNIPRO], and [MIPI-M-PHY].

Clause 4 provides a brief overview of the architectural overview of UFS. Clause 5 describes the register interface of UFSHCI. Clause 6 describes the data structure used by UFSHCI. Clause 7 provides a theory of operation for UFSHCI. Clause 8 describes the error recovery process for UFSHCI.

Committee(s): JC-64, JC-64.1

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This document specifies standard temperature ranges that may be used, by way of referencing JESD402-1, in other standards, specifications, and datasheets when defining temperature related specifications.

Committee(s): JC-42

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The purpose of this standard is to describe Zoned Storage for UFS, which enables higher bandwidth, lower latency and to reduce write amplification.

Patents(): Huawei 201911209032.1; 116166570,A Memory Technologies LLC 101952808 104657284 2248023 3493067 602009056490.0 602009064847.0 HK1210296 5663720 6602823 10-1281326 10-1468824 2248023 3493067 2248023 3493067 8307180 8601228 9063850 9367486 10540094 11550476

Committee(s): JC-64, JC-64.1

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The JEDEC Board of Directors is responsible for establishing appropriate committees to conduct its standardization activities.  This publication identifies the service and product committees established by the Board of Directors and defines their scopes.

Committee(s): JC-COUN

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NOTE: This document has been superseded by JESD223F published in December 2024, but remains available for reference purposes.

Committee(s): JC-64.1

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This document, while establishing the complex nature of System Level ESD, proposes that an efficient ESD design can only be achieved when the interaction of the various components under ESD conditions are analyzed at the system level. This objective requires an appropriate characterization of the components and a methodology to assess the entire system using simulation data. This is applicable to system failures of different categories (such as hard, soft, and electromagnetic interference (EMI)). This type of systematic approach is long overdue and represents an advanced design approach which replaces the misconception, as discussed in detail in JEP161, that a system will be sufficiently robust if all components exceed a certain ESD level.

Committee(s): JC-14, JC-14.3

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This standard specifies the extension specification of the UFS electrical interface and the memory device. This document describes the extended feature, called Host Performance Booster (HPB), in UFS specification. It also provides some details in how to utilize the HPB for realizing high performance in UFS devices. Committee item 138.34

Patents(): WD: 9,323,657

Committee(s): JC-64.1

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For UFS Card 6 Gb/s

Item 11.14-195S

Committee(s): JC-11.14

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This document provides a comprehensive definition of the e•MMC Electrical Interface, its environment, and handling. It also provides design guidelines and defines a tool box of macro functions and algorithms intended to reduce design-in overhead. The purpose of this standard is the definition of the e•MMC Electrical Interface, its environment and handling. It provides guidelines for systems designers. Item 67.14.

This document replaces all past versions, however links to the replaced versions are provided here for reference only: JESD84-B51, February 2015; JESD84-B50.1, July 2014 (Editorial revision of JESD84-B50); JESD84-B50, September 2013 (Revision of JESD84-B451); JESD84-B451, June 2012 (Revision of JESD84-B45, June 2011)

Patents(): A complete list of Assurance/Disclosure Forms is available to JEDEC members in the Members Area. Non-members can obtain individual Assurance/Disclosure Forms on request from the JEDEC office.

Committee(s): JC-64

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