N G i S S l iN G i S S l iNext Generation Storage SolutionNext Generation Storage Solution

-- UFS standard & Features UFS standard & Features ––UFS standard & Features UFS standard & Features

15 & 17 August 2012 Taiwan/KoreaS El t i C LtdSamsung Electronics Co. Ltd.

Sung H. Lee

Mobile Memory Forum 2012

No more just communication

MOBILE TRENDSMOBILE TRENDSNo more just communication

Mobile phone comm nicationMobile phone comm nicationMobile phone = communicationMobile phone = communication

Mobile phone comm nicationMobile phone comm nicationMobile phone = communicationMobile phone = communication

More than j st comm nicationMore than j st comm nicationMore than just communicationMore than just communication

Smartphone become major in mobileSmartphone become major in mobileSmartphone become major in mobileSmartphone become major in mobile

• By 2013, over 60% of mobile phone will be hsmartphone

Price ($400↑)Smartphone

High-End Segment

Price ($200~400)

Price ($100~200)

Mid-End Segment

Price ($100~200) Feature Phone Low-End Segment

[Source : 2012 Samsung Mobile Marketing Team][Source : 2012 Samsung Mobile Marketing Team]

The solution for future proof

UNIVERSAL FLASH STORAGEUNIVERSAL FLASH STORAGEThe solution for future proof

SSD for MobileSSD for MobileSSD for MobileSSD for Mobile

Mobile PCMobile PC

eMMC SSD

• Low Power• Optimized for mobile usages • Flash Oriented features

• High Performance Serial Interface

• Asynchronous operation• Proven Architecture (SCSI)

UFSUFS

Best of the best

The Fle ible Architect reThe Fle ible Architect reThe Flexible ArchitectureThe Flexible Architecture

• UFS adopts well-adopted industry standards; MIPI M PHY U i d T10 SCSIMIPI M-PHY, Unipro and T10 SCSI

Application Layer

Device Manager

pp yUFS Command Layer

SCSI Task manager

UFS Transport Protocol Layer(UTP)

UFS Interconnect Layer (UIL)

UniPro

M-PHY

UFS S stem ModelUFS S stem ModelUFS System ModelUFS System Model

MI

MI

MI

MIP

I UniP

roSM

PI M

-PH

YS

M

PI UniPro

SM

PI M

-PH

YSM

UICHCI UTP / Application

SCSI complianceSCSI complianceSCSI complianceSCSI compliance

• UFS compliance with SCSI

UFSUFS

The Fastest Interface ith Lo Po erThe Fastest Interface ith Lo Po erThe Fastest Interface with Low PowerThe Fastest Interface with Low Power

• UFS exceeds current SSD interface with lower i d db active and standby power

– MIPI is working on 6G/12Gbps interface

2x lanes (option)

16.7x

2x lanes (option)

1 51200

100%

1.5x

1.1x1.3x

600

300MB/s200

600

UFS1.1

eMMC4.5

UFS 2.x

UFS 3.x

MB/s

Active StandbySATA 3

The Scalable InterfacesThe Scalable InterfacesThe Scalable InterfacesThe Scalable Interfaces

• UFS supports multiple interface speeds– Host can adjust interface based on its’ needs in real

time

HS G2

PWM G4

HS G1

PWM G1 PWM G2PWM G3

PWM G4

3~9Mb/s 6~18Mb/s 12~36Mb/s 1.25~1.5Gb/s24~72Mb/s 2.5~3Gb/s

PerformancePowerPower

Optimi ed for Random Optimi ed for Random Optimized for Random Optimized for Random

• Asynchronous operation & Queuing improves d irandom operation

– Better user experience with low latency CMD ①

CMD ③

CMD ①

CMD ②

CMD ③

CMD ④

CMD ⑤

CMD ①

CMD ②

5xUFS w/ cache & Queue

eMMC w/ cache

NAND chip2

CMD

…

32

CMD ④

CMD ⑤

NAND chip1

Sync w/o Queue

2x

CMD ①

CMD ②

CMD ③

CMD ④

CMD ①

CMD ②CMD ④

CMD ⑤

100%

NAND chip2

CMD

…

32

CMD ⑤

NAND chip1

Async w/ Queue

Random Read Random Write

Async w/ Queue

No more S itching cost bet een PartitionsNo more S itching cost bet een PartitionsNo more Switching cost between PartitionsNo more Switching cost between Partitions

• Host can access multiple partitions (LU) at once– Host can address different LU at once– And assign the high priority LU among others

Inherit Inherit eMMCeMMC Mobile Feat resMobile Feat resInherit Inherit eMMCeMMC Mobile FeaturesMobile Featurese.MMC4.5 UFS SATA

Interface Operation Full Duplex Dual SimplexInterface Operation - Full Duplex Dual Simplex

Future Expandability ~200MB/s 3Gbps ~12Gbps, Multi-Lane (option) 6Gbps

H/W reset Yes Yes NoAlternative Boot Yes Yes No Rom Multi-Partition Yes(4) Yes(8) No

Security feature

Trim Yes Yes YesDiscard Yes Yes NoRPMB Yes Yes No

Secure Erase S iti S iti NSecure Erase Sanitize Sanitize NoSecure Trim

High Priority Interrupt Yes Yes(LU/Queue) No

Back Ground Operation Yes Yes No

Performance Feature

OperationOperation Mode Sync Async Async

Packed CMD Yes Command Queuing Command QueuingData Tag Yes Yes No

Context ID Yes Yes NoC h O ti Y Y YCache Operation Yes Yes Yes

Reliability

Dynamic Capacity Yes Yes No

Power off notification Yes Yes No

Real Time Clock Yes Yes No

16

Are we ready?

READINESSREADINESSAre we ready?

UFS is coming sooner than o think UFS is coming sooner than o think UFS is coming sooner than you think …UFS is coming sooner than you think …

• Toshiba unveiled UFS at the meeting of MIPI lli i B li J 2012alliance in Berlin, June 2012

[Source: EETiimes 6/13/2012][Source: EETiimes 6/13/2012]

UFS is coming sooner than o think UFS is coming sooner than o think UFS is coming sooner than you think …UFS is coming sooner than you think …

• Samsung UFS demo system, Nov. 2011

UFS host controllercontroller

UFS device

[Source: Samsung Flash Product Planning

UFS device

[Source: Samsung Flash Product Planning

One IP for M ltiple P rposeOne IP for M ltiple P rposeOne IP for Multiple PurposeOne IP for Multiple Purpose

• MIPI is the most well adopted interface for mobile– M-PHY & Unipro is not just for UFS but also others

Camera 2011 2012

AP Modem

UFS IP

AB

UFS

BC

UFS dri er is alread a ailableUFS dri er is alread a ailableUFS driver is already availableUFS driver is already available

• UFS Linux drivers is developed by LINARO– By end of ‘12, UFS 1.1 driver will be adopted in to

kernel 3.5.x

2012 2013Application

I/O M Kernel 3.5.x Kernel 3.7-8.xUFS 1.1I/O Manager

File System

1st UpstreamPatch

Upstream

Storage Class Driver

UFS Device Driver

UFS HCI

Embedded Storage for Mobile ForecastEmbedded Storage for Mobile ForecastEmbedded Storage for Mobile ForecastEmbedded Storage for Mobile Forecast

• e-MMC will be strong market driver for mobile h h ’12 throughout ’12

• Transition to UFS will start in ’13 at high-end, including tabletc ud g a e

2012 2013 2014HighHigh‐‐endend

UFSUFSUFSUFS

ee‐‐MMCMMC

LowLow‐‐endend

THANKSTHANKS