sd standards & technology overview · sd standards & technology overview kazunori nakano ,...
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© 2017 SD Association. All rights reserved. 1 1
SD Standards & Technology
Overview
Kazunori Nakano , Chair Marketing Committee
April 24, 2017
SD Logos are trademark of SD 3C-LLC
© 2017 SD Association. All rights reserved. 2
Agenda
• SD Association Overview • SD Standard Specification Overview
• Card Types • SD Specification Structure • SD Standard Evolution Summary • SD Logos & SDA Pictographs • Higher Capacity & Faster Interface Speed
• Market Trends Driving SD Card Innovations • UHS-II • Video Speed Class • Application Performance Class • Low Voltage Signaling Card
© 2017 SD Association. All rights reserved. 3
SD Association Overview
© 2017 SD Association. All rights reserved. 4
SD Association Organization
Board of Directors
Technical Committee Compliance Committee
Test Tools
Interoperability
Market Inspection
Compliance News
Designated Labs
Logo Guideline
SDA Public Web Site
SDA Brochure
Press Release
Promotional Exhibition
Promotional Seminar
Member Recruitment
Global Workshop
SD Association: SDA (www.sdcard.org)
・ Open Standard/ SD Card Standardization
・ Promotion and Adaption of SD Standard Worldwide
•Organization Established in 2000 •Member Company : Around 900 Companies Worldwide (as of Mar. 2017) •#1 Market Share in small size memory card in the world •Member Fee: Executive Member $4,500/year General Member $2,000/year
Planning Ad-hoc Committee Financial Committee
License Committee
Physical Specification
File System
Security
Application
SDIO
Host Controller
Test Guideline
Marketing Committee
© 2017 SD Association. All rights reserved. 5
SDA Board of Directors
© 2017 SD Association. All rights reserved.
SDA Membership and Benefit
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As a member you:
Get ACCESS TO ALL
STANDARDS
May have ACCESS to standards drafts BEFORE THE RELEASE, while they are under
development
May INFLUENCE standards under development and/or next generation standards
Get updates on SD standards
roadmap
May participate in Interoperability events
© 2017 SD Association. All rights reserved.
Marketing Committee Organization 2016
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Marketing Committee Chair
Kazunori Nakano (Toshiba)
Application WG Chair: Shinji Inoue (Panasonic)
Tsutomu Ando (Canon)/ Camera
Shinichi Matsukawa (Toshiba)/ Security Oscar Lo (Phison) / smart microSD
UHS-II Market Research Ad-hoc Working Group
Chair :Open
Web WG Chair: Kaz Nakano (Toshiba)
Jennifer Bonner (GI) Emi Hatano (SanDisk)
Anne Tsuo (Allion) Oscar Lo (Phison)
Regional Marketing WG Open /US Chair Open /EU Chair
Kaz Nakano/Japan Chair (Toshiba)
Vamshi Kandalla/India Chair (Granite Liver Labs) Anne Tsou/ Taiwan Chair (Allion)
T.H.Kuang / Great China Chair (Phison)
Local China Regional Chairs (Under T. H. Kuang) James Xu (Netac)/Southern China Region Chair
Jeri Woo (Wuhan Tianyu)/Central China Region Chair
David Ding (Microflash)/Western China Region Chair tbd/Eastern China Region Chair
tbd/Northern China Region Chair
Logo Guideline WG Chair: Jeff Tsujimoto (SanDisk)
Esther Han (SanDisk) Shinji Inoue (Panasonic)
Global Public Website & Events Management Mana Shimizu (Acube)
Marketing & Events Support Belinda Lucero (GI)
TC Relations Advisory Directors
Takuji Maeda (Panasonic) Noriya Sakamoto (Toshiba)
Yosi Pinto (SanDisk)
CC Relations Advisory Directors
Minoru Ohara (Allion)
Tsutomu Ando (Canon)
© 2017 SD Association. All rights reserved.
Technical Committee Organization
Yosi Pinto (SanDisk) Noriya Sakamoto (Toshiba)
Application WG Specification WG Advanced Security WG
Krishnamurthy
Dhakshinamurthy
(SanDisk)
Jun Sato (Toshiba)
Shinji Inoue (Panasonic)
Yoni Shternhell(SanDisk)
IO WG
File System TG
Audio TG
Visual TG
Binding AD
Document TG
SS TG
Katsutoshi Akagi (Bayhub)
Katsutoshi Akagi (Bayhub)
Akihisa Fujimoto (Toshiba)
Host TG
MS TG
Application Platform TG
Mechanical TG
Minoru Ohara (Allion)
OTP TG
UHS TG
Miki Takahashi (Granite River Labs)
Tadashi Ono (Panasonic)
eSD TG Core Security TG
Yoni Shternhell (SanDisk)
Shinichi Matsukawa (Toshiba)
GPS TG
PHS TG
Camera TG
Non-active groups in TC
Bluetooth TG
Test Guideline WG
Minoru Ohara (Allion)
Akihisa Fujimoto (Toshiba)
Content Format TG
Content Delivery TG NFC Ad-hoc
iSDIO TG
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Low Voltage TG
Janice Chiu (SMI)
Technical Committee
WiMAX TG
Random Performance TG
Krishnamurthy(SanDisk)
© 2017 SD Association. All rights reserved.
Compliance Committee Organization
Compliance Committee
Co-Chair Minoru Ohara, Allion
Tsutomu Ando, Canon Inc.
Interoperability WG
Chair Minoru Ohara (Allion)
Compliance WG
Co-Chair Hiroto Okada (SolidGear) Shinji Inoue (Panasonic)
Test Tool Evaluation Ad-hoc
Managed by Compliance Committee Chair
*This group is set up based on requests from test tool vender
Designated Labs Allion Test Labs (SDHC/SDXC/UHS-I/UHS-II)
Panasonic (SDHC/SDXC/UHS-I)
Granite River Labs (UHS-II)
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© 2017 SD Association. All rights reserved. 10
SD Standard Specification Overview
© 2017 SD Association. All rights reserved. 11
SD Card Types
Form Factors
Standard SD Card microSD Card
Functions
SD Memory Card SDIO Card SD Combo Card (SD Memory + SDIO Functions)
iSDIO Wireless LAN SD Card
iSDIO TransferJet SD Card
smart microSD microSD with Secure Element or with or without NFC interface
Memory Capacities
SDSC: Standard Capacity (≤ 2GB) SDHC: High Capacity (2GB< - ≤32GB) SDXC: eXtended Capacity (32GB< - ≤2TB)
Bus Interfaces
Non UHS (Non Ultra High Speed) Card UHS-I Card
UHS 50: SDR50 is mandatory (50MB/sec Max.) UHS104: SDR50 and SDR104 is mandatory (104MB/sec Max.)
UHS-II Card UHS156: FD156 is mandatory (Full Duplex 156MB/sec Max.) HD312 is optional (Half Duplex 312MB/sec Max.)
UHS-III Card UHS312: FD312 is mandatory (Full Duplex 312MB/sec Max.) UHS624: FD624 is mandatory (Full Duplex 624MB/sec Max.)
SD Logos are trademarks of SD 3C-LLC
© 2017 SD Association. All rights reserved.
SD Standard Evolution Summary
(SDHC)
Application
Performance
Class 1 (A1)
Application
Performance
Class 1
Application
Performance
Class 2
SDA 6.00 A2
SD 5.1 (4Q/16)
© 2017 SD Association. All rights reserved.
SD Logos & SDA Pictographs
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- SD Logos - - SDA Pictographs -
• SD/microSD Logo • SDHC/microSDHC Logo • SDXC/microSDXC Logo • smartSD/SDHC/SDXC Logo • SDIO Logo • Embedded SD Logo
• Speed Class Pictograph • UHS Speed Class Pictograph • Video Speed Class Pictograph • UHS Bus Pictograph • Application Performance Class Pictograph • SD Applications Format Pictograph • Smart Pictograph • Wireless LAN SD Pictograph
Important:
All SD Products shall comply with SD/SDA Logo Guidelines.
Only products that support a specific interface and/or speed class may use the logos on their
products and its documentation
© 2017 SD Association. All rights reserved.
Specification
SDA SD-3C LLC SDA Specification SD Group Specification
SDA Pictographs SD Logos
Essential Patents
License Contract with SDA Contract with SD-3C LLC
Card
Host SDA License Agreement
( SDALA )
SDA Membership Agreement (SDAMA) CLA
License Scheme & Compliance
SD-3C HALA
Licensee should comply with SD/SDA Specifications and Logo Guideline (As Normative Document)
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15
Main SD Logos & SDA Pictographs
≤ 2GB
2GB< - ≤32GB
32GB< - ≤2TB
3. Speed Class Mark: for Video Record
2000
2006
2009
2010
1. SD Logo :Capacity(3 types) 2. Bus Mark :Data Transfer Performance
2011
2016 2010 2013 2006 2009
UHS-I UHS-II
High Speed Bus
2004
No Mark
2017
UHS-III (New)
Ultra High Speed Bus
UHS Speed Class Speed Class Video Speed Class
© 2017 SD Association. All rights reserved. 16
Higher Capacity and Faster Interface Speed
SD Logos are trademarks of SD-3C LLC
© 2017 SD Association. All rights reserved.
Bus Speed Mode
SDR : Single Data Rate (Use rising clock edge) DDR: Double Data Rate (Use rising and falling clock edge)
UHS: Ultra High Speed LVDS: Low Voltage Differential Signaling
Bus Mode Maximum
Frequency
Signal
Voltage
Bus
Maximum
Performance
Spec.
Version
Default Speed (DS) 25MHz 3.3V 12.5MB/sec 1.01
High Speed (HS) 50MHz 3.3V 25 MB/sec 1.10
UHS-I
SDR12 25MHz 1.8V 12.5MB/sec
3.01
SDR25 50MHz 1.8V 25 MB/sec
SDR50 100MHz 1.8V 50 MB/sec
SDR104 208MHz 1.8V 104 MB/sec
DDR50 50MHz 1.8V 50 MB/sec
UHS-II FD156 52MHz x 30 (PLL) LVDS 156 MB/sec 4.00
4.20 HD312 52MHz x 30 (PLL) LVDS 312 MB/sec
UHS-III FD312 52MHz x 60 (PLL) LVDS 312 MB/sec
6.00 FD624 52MHz x 120 (PLL) LVDS 624 MB/sec
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© 2017 SD Association. All rights reserved.
Trends for Removable Storage in Mobile devices
Source: Strategy Analy tics, October 2016
• Smartphone market is slowly saturating (in shipment terms)
• Technology is still developing rapidly (Multi cores, Speed, RAM increase etc..)
• Slotted smartphones steady at around 70%
• Card capacities still growing at 35% per year
• Low cost phones that allows consumers do memory expansion with cards are very popular in developing countries
• A trend of ‘True Memory Expansion’ allows applications to be stored and run from cards new requirements from cards
© 2017 SD Association. All rights reserved. 19
Video Speed Class
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Minimum Sequential
Write Speed
Speed Classes
Speed Class
UHS Speed Class
Video Speed Class
(New)
90 MB/sec
60 MB/sec
30 MB/sec
10 MB/sec
6 MB/sec
4 MB/sec
2 MB/sec
SD Speed Class & Video Format/Application
Corresponding Video Format The necessary speed varies by each recording /
playback device condition, even in the same format. The expanded ranges below are possible
based on device capabilities (better resolution
possible even at lower speeds).
8K
Vid
eo
4K
Vid
eo
Sta
nd
ard
Vid
eo
Fu
ll HD
/ HD
Vid
eo
20
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Video Resolution
SD Speed Class & Video Resolution
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Application Performance Class
© 2017 SD Association. All rights reserved.
Application Performance Class 1 & Class 2 –500 IOPS(A1)/2000 IOPS(A2) for random write
• 75% usage • 256 MB test range, RPTU
–1500 IOPS(A1)/4000 IOPS(A2) for random read
• After random write testing
–10MB/s for sequential write
• 100% usage • 1GB write with 4MB chunk
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Application Performance Class
Command Queue (mandatory for A2) Contributes mainly to random read performance
Multiple tasks can be handled at one time with arbitrary order
New tasks can be assigned during data transmission
Cache function (mandatory for A2) Contributes mainly to random write performance
Card may use higher speed volatile memory to cache the host data during
memory card access operation
To eliminate data loss – flush commands are used (flush operation - 1sec max)
Self-Maintenance Contributes to better memory access performance
Allows internal background data management
May be initiated either by card or by the host based on the card’s internal
needs
microSD cards with A1 logo are recommended for use in Card Adoption mode or if the card is used for Applications
© 2017 SD Association. All rights reserved.
Low Voltage Signaling
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Low Voltage Signaling Legacy UHS-I cards may support 1.8v signaling, however the must be initialized by 3.3v.
New SoC technology prefers only 1.8v signaling
The LVS cards can work either with 3.3v or 1.8v signaling from Init using an automatic signaling level detection mechanism
LVS cards are fully backward compatible
ALL “A2” cards will support LVS as well
© 2017 SD Association. All rights reserved.
Summary of New SD Standards
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SDA defined until today performance standards for sequential writes serving the imaging
market with focus on growing demands of video capturing
SDA defined UHS-II gen 2 UHS-III (624MB/s) to further enhance these market needs
But its not just about storing content anymore…its App Running demanding enhanced random
access…
SDA defined Application Perf Class A1 last November and now A2 along with enhanced features; Command
Queuing, Cache and Maintenance
Evolving technology trends of mobile SoCs raised a request to operate only with 1.8v Signaling (w/o need for 3.3v initialization)
SDA defined the Low Voltage Signaling card with full backward compatibility
New evolving technologies of multi-core, high-speed IOs will raise even higher demands for SD
card performance in high end applications
SDA is currently developing the next generation SD card. If you are interested to follow the evolving standard as it evolves or even contribute to the standardization process - you are welcome to join the effort and participate in SDA’s standard development activities
© 2017 SD Association. All rights reserved. 26
Thank you!
© 2017 SD Association. All rights reserved. 27
© 2017 SD Association. All rights reserved. 28
www.sdcard.org
SD Logos are trademark of SD ,3C-LLC