Shulou(Shulou.com)11/24 Report--

Thanks to CTOnews.com netizen OC_Formula for the clue delivery! CTOnews.com August 18 news, today, the JEDEC solid State Technology Association officially released the UFS 4.0 protocol.

UFS 4.0 was developed for mobile applications and computing systems to meet the needs of high performance and low power consumption, introducing significant bandwidth and data protection improvements on earlier versions of the standard, resulting in higher bandwidth, lower power consumption, and more comprehensive security! Help mobile storage acceleration!

In addition, JEDEC has released the UFSHCI 4.0 (JESD223E) supplementary protocol, as well as File-based Optimization (JESD231 File Based Optimization) for UFS 3.1 and later. The relevant finished products will be available by the end of this year at the earliest. Let's wait and see.

UFS is a high-performance protocol, mainly used in computing and mobile systems, such as smartphones and tablets, so low power consumption is the main demand. With the help of high-speed serial interface and optimized protocol, its throughput and mobile system performance have been significantly improved.

UFS 4.0 and UFSHCI 4.0 together define the following improvements to previous versions of the standard:

In order to achieve the highest performance and the most power-efficient data transmission, JEDEC UFS uses the industry-leading specifications of the MIPI Alliance to form its interconnection layer. UFS 4.0uses M-PHY 5.0specification and UniPro 2.0specification, and finally doubles the bandwidth of UFS interface, and the traffic of reading and writing can reach 4.2GB / s.

A multi-loop queue definition is introduced to meet more storage I / O mode requirements

A more advanced RMPB interface is introduced to increase bandwidth and protect data security

In addition, UFS 4.0 provides enhancements designed to improve overall device performance, energy efficiency, and ease of integration with future cutting-edge solutions:

Uses a more efficient VCC=2.5V instead of 3.3V in previous versions of the standard

Improved system latency by enabling high-speed link startup, out-of-order data transmission, and BARRIER commands

System integration is simplified by introducing enhanced device error history with host configurable timestamps and M-PHY eye monitors.

Maintain backward compatibility with UFS 3.1and 3.0to allow mixed system applications

Finally, as an optional extension of UFS 3.1 and above, the new file-based optimization JESD231 standard allows hosts to accelerate read traffic based on the file system information provided by the host.

Industry application level, Yihua, armour, Samsung Electronics, Meguiar, Xinsi Technology have provided support.

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