Universal Flash Storage - JEDEC Flash Storage • Embedded & Removable devices • 300MB/s with future scalability • El tilEmploy a multi-di hi t ldevice chain topology • Flexible

Universal Flash Storageg- Ultimatum of next generation Storage -

Las Vegas, USA7th of Jan, 2011

Sung H. LeeSamsung Electronics Co. LTD

Flash Forward @ CES 2011Flash Forward: @ CES 2011

What are in your backpack?

Flash Forward @ CES 2011

What are in your backpack?

So many digital devices….


What is inside?

So many different types of storage …


What do we do with…?


Enjoying multimedia…Multimedia

<< <<Full HDSD

3.7 GB / 60 min

Full HD + 3D

1.4 GB / 60 min ~ x2


[H.264 encoded]

Enjoying gizmos…Multimedia

Smartphone

man

ce

Feature phone

Perf

orm

HD contents, Full browsingApplications and more

Basic Call & SMS

MP3, PicturesApplications and more


Enjoying Apps…Multimedia

Smartphone

Applications

24% of US adults use apps on their cellphones

OVER 250K apps on Apple’s & 80K on Android


[Source: LA Times, Sept. 14, 2010]

Enjoying the flow of info…Multimedia

Smartphone

ApplicationsMobileMobile Web browsing

Mobile eb bro sers sages


[Source: www.webdevelopers.com] Aug. 03, 2010

Mobile web browsers usages

Enjoying freedom of multi-task…Multimedia

SmartphonePROCESS A

HOST MP3 PLAY

APP STOP

MobileApplications

PROCESS B

HOST

Download Data

Mobile Web browsing Traditional

eMMCDeviceWrite

Read

Internal Write(Merge)

Multi-tasking MB/s(Write)

Low latency is must for


seamless user experience

What do we do with…?Multimedia

Smartphone

ApplicationsMobileMobile Web browsing

Multi-tasking

and MORE!!and MORE!!Flash Forward @ CES 2011

a d Oa d O

What do we come up with…?


What are we planning to do?

• High performance• Serial interface• Command queuing

SSD

• Command queuing



• Mobile usages friendly• Flash memory oriented• Low power

e-MMC

• Low power



SSD e-MMC



SSD e-MMC

UFSUFS


What is UFS?

Universal Flash Storage

• Embedded & Removable devices• Embedded & Removable devices• 300MB/s with future scalability

E l lti d i h i t l• Employ a multi-device chain topology• Flexible protocol• Leverage existing standards or works


What is UFS?

Universal Flash Storage

• Embedded & Removable devices• Embedded & Removable devices• 300MB/s with future scalability

E l lti d i h i t l• Employ a multi-device chain topology• Flexible protocol• Leverage existing standards or works

GOAL of UFS TGGOAL of UFS TGFlash Forward @ CES 2011

GOAL of UFS TGGOAL of UFS TG

Faster Interface

CongestedCongested parallel interface

Simple faster


Simple faster Serial Interface

Multi commands queuing

One command at a time


Multiple commands queuing

Multi commands queuing

If NOTFlash Forward @ CES 2011

How is it going to be?• UFS is formed with simple 4 blocks

Device Manager

Application LayerUFS Command

Layer Task

manager

UFS Transport Protocol Layer(UTP)

UFS Interconnect Layer (UIL)UFS Interconnect Layer (UIL)

UniPro


M-PHY

How is it going to be?• Easy for hardware development

–More than just for UFS

Device Manager

• Adoption of MIPI specification- M-PHY version 1.0 for PHYUp to ~3Gbps for UFS 1.0


Layer Task

manager


Up to 3Gbps o U S 0Over 5.8Gbs for UFS 2.0

- Unipro1.4/1.5 for linkSimple bur flexible link layers


UniPro MIPI specifications are on the final stage of release


M-PHYthe final stage of release

How is it going to be?• Easy to adopt in Software

–Utilize exiting solutions; SCSI

Device Manager

• Work with SCSI commands & Architecture - SPC, SBC and SAM


Layer Task

manager


S C, S C a d S• Min. options & features

- Select & define for UFS specific usages cases

UFS Command Layer


UniPro

- 10 ~ 15 commands

No overhead for OSUFS SCSI

UFS Native

Future extension


M-PHY

How is it going to be?• Simple but effect driver stack for UFS

–Flexible device management

Device Manager

• Mobile usages centric device management- While work with SCSI & MIPI,


Layer Task

manager


e o t SCS & ,UFS still fully mobile & Flash oriented devices

• Work with SAM4 UFS Interconnect Layer (UIL)UFS Interconnect Layer (UIL)

UniPro Few extra efforts are needed


M-PHYneeded

How is it going to be?• Support major e-MMC features and

moreB t Enhance WriteBoot

M lti l

Enhance Partitions

RPMB

Write Protect

D iMultiple Partitions

RPMB(Security)

Dynamic Capacity

Sleep & Reset and more..


What are these means..?

150MB/s

UFS 1.0

80MB/

e·MMC

e·MMC4.4 ~

80MB/s

40MB/s e MMC

2009 20122010 2011 2013Single Task Multi-Task Asyn. & queuing


Coming soon…Flash Forward @ CES 2011

Coming soon…

THANK YOUFlash Forward @ CES 2011

Documents

Universal Flash Storage - JEDEC Flash Storage • Embedded & Removable devices • 300MB/s with future scalability • El tilEmploy a multi-di hi t ldevice chain topology • Flexible