The role of SD Express Card Reader in SD ExpressEcosystem of Devices
讀卡機控制晶片在SD Express生態系的功能與定位
SDA 2023 Global Workshop Taipei June 1, 2023

Sean Chen
Product Marketing of Storage Product Team, Genesys Logic Inc.

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CONFIDENTIAL

1

Genesys Logic Inc. 創惟科技
ESTABLISHEDIPO at TAIWAN
BUSINESS SCOPE
PRODUCTS

April, 1997
May 22, 2001 (OTC: 6104)
IC Design, Develop, Test, and Distribute ICs, ASIC ServiceStorage, USB Hub & PD, Image & Video, Analog,Silicon Intellectual Properties (IPs), Others

HEADQUARTERS
SUBSIDIARIESNew Taipei City, Taiwan
USA - Genesys Logic America, Inc.
China - Eclat Holding Ltd©SD Association. SD, microSD and related marks and logos are trademarks of SD-3C LLC. © SD-3C LLC. All Rights Reserved.

Memory Cards since 1992

©SD Association. SD, microSD and related marks and logos are trademarks of SD-3C LLC. © SD-3C LLC. All Rights Reserved.

Memory Cards since 1992
PCMCIA Card

1992

1994

1997

1998

2000

2002

2009

2012

PCIe-based memory card

©SD Association. SD, microSD and related marks and logos are trademarks of SD-3C LLC. © SD-3C LLC. All Rights Reserved.

Various Choices of Card Reader Products©SD Association. SD, microSD and related marks and logos are trademarks of SD-3C LLC. © SD-3C LLC. All Rights Reserved.

The Memory Card Reader Controller
A bridge to transfer data from host to card or from card to host
Data correctness and data integrity

Maximum the compatibility to Host and Card
Complete the data transfer in the shortest time
Minimize the power consumption
The consistent performance in every use©SD Association. SD, microSD and related marks and logos are trademarks of SD-3C LLC. © SD-3C LLC. All Rights Reserved.

Leverage the Existing PCIe Technology
PCIe-based memory cards
ü SSD-like storage in card form factor
ü PCIe move to external from internalü Fixed disk to removable device©SD Association. SD, microSD and related marks and logos are trademarks of SD-3C LLC. © SD-3C LLC. All Rights Reserved.

Backward Support of SD Express Card

©SD Association. SD, microSD and related marks and logos are trademarks of SD-3C LLC. © SD-3C LLC. All Rights Reserved.

SD Express Host support both SD and PCIe interface

USB, PCIe

Support UHS-II ?

Without UHS-II

Source: SD Express (SD7.x) Host Implementation Guideline©SD Association. SD, microSD and related marks and logos are trademarks of SD-3C LLC. © SD-3C LLC. All Rights Reserved.

SD Express Reader support UHS-II is important
At least 79 cameras support UHS-II card slot in past ten years
Canon, Fujifilm, Leica, Nikon, Olympus, Panasonic, Samsung, Sony…etc
All top brands of laptops support UHS-II card slot
Apple, ASUS, Acer, Dell, HP, Lenovo, MSI, Chromebook…etc
Thunderbolt / USB-C docking support UHS-II card slot
From the view point of SD reader vendor, it might be hard to explain to end users who only have
UHS-II cards why their UHS-II cards perform more slowly with a new SD Express card slot than theyolder UHS-II card slot.

1/3 speed©SD Association. SD, microSD and related marks and logos are trademarks of SD-3C LLC. © SD-3C LLC. All Rights Reserved.

A Case: SD Express in Camera
UHS-II card slot is widely supported by Cameras

However, SD Express cards perform more slowly with the existing UHS-II card slot
Meanwhile, CFexpress offer the high writing speed to card
What we can do to make the SD Express card to be adopted by Camera ?

©SD Association. SD, microSD and related marks and logos are trademarks of SD-3C LLC. © SD-3C LLC. All Rights Reserved.

Genesys Solution – GL9767
PCIe to SD8/7/4/3 all-in-one card reader controller
The major applications of GL9767 are the internal SD Express card reader of laptop, mini PC, Server
system, professional camera, game console and drone devices that demand the high speed of SD storageor the second SSD-like storage for the real memory expansion.
The support of SD Express interface can be up to SD 8.0 SD Express (PCIe Gen.4 x 2) and support SD
8.0 SD Express (PCIe Gen.4 x 1), SD 8.0 SD Express (PCIe Gen.3 x 2) and SD 7.1 SD Express (PCIeGen.3 x 1)
GL9767 is the first SD Express card reader controller which can backward support SD 4.0 UHS-II speed
mode and SD 3.0 UHS-I speed mode.
For power saving, GL9767 support PCI Express ASPM, L1 sub-states (L1.1 and L1.2) and RTD3 (Runtime
D3 Hot/Cold), Modern Standby and S0ix.
The supported OS are Windows OS, Chrome OS and Linux OS©SD Association. SD, microSD and related marks and logos are trademarks of SD-3C LLC. © SD-3C LLC. All Rights Reserved.

12

PCIe & SD - GL9767
Host interface
Support 1-Lane 16 GT/s PCI Express Bus connect to PCIe host
Support 2-Lane 32 GT/s PCI Express Bus connect to PCIe host by system design

The supported SD specification
Compliant with SD Specifications Part 1 Physical Layer Specification Version 8.0
Compliant with SD Specifications Part 1 Physical Layer Specification Version 7.1
Compliant with SD Specifications Part A2 SD Host Controller Specification Version 4.20The supported SD cards and SD speed mode
Secure DigitalTM (SD), SDXC, SDHC, SDUC
SD 8.0 Express mode up to 3940 MB/sec
SD 7.1 Express mode up to 985 MB/sec
SD 4.0 UHS-II FD/HD mode up to 312 MB/sec
SD 3.0 UHS-I SDR104, SDR50 and DDR50©SD Association. SD, microSD and related marks and logos are trademarks of SD-3C LLC. © SD-3C LLC. All Rights Reserved.

GL9767 is the only SD host SVP product for both
SD Express and UHS-II©SD Association. SD, microSD and related marks and logos are trademarks of SD-3C LLC. © SD-3C LLC. All Rights Reserved.

SD Express Host Implementation

Source: SD Express (SD7.x) Host Implementation Guideline©SD Association. SD, microSD and related marks and logos are trademarks of SD-3C LLC. © SD-3C LLC. All Rights Reserved.

Controller Block Diagram – GL9767
GL9767
High Speed MUXSD CardUHS-I
UHS-IISD Express©SD Association. SD, microSD and related marks and logos are trademarks of SD-3C LLC. © SD-3C LLC. All Rights Reserved.

PCIe RC
PCIe Gen2
SD 4.0 HostController

SD Express card directly connect to PCIe root complex
and the in-box NVME driver is loadedHigh Speed MUXSDCard

PCIe Gen2
SD 4.0 HostController

PCIeRCThe PCIe root port need to enable PCIe hot-plug function to support SD7 card plug and un-plug©SD Association. SD, microSD and related marks and logos are trademarks of SD-3C LLC. © SD-3C LLC. All Rights Reserved.

The legacy SD cards are initialized by the internal SD hostcontroller and the vendor driver is loadedHigh Speed MUXSDCard©SD Association. SD, microSD and related marks and logos are trademarks of SD-3C LLC. © SD-3C LLC. All Rights Reserved.

PCIe Gen2
SD 4.0 HostController

PCIeRCBenchmark test – GL9767©SD Association. SD, microSD and related marks and logos are trademarks of SD-3C LLC. © SD-3C LLC. All Rights Reserved.

Conclusion
讀卡機控制晶片在SD Express生態系的功能與定位
The Role of SD Express Card Reader in SD Express-Ecosystem

Faster speed with PCI Express technology
Don’t forget UHS-II have been widely adopted by various devices
Genesys Logic’s all-in-one solution GL9767 is MP now
Looking forward the grow up of SD Express market !

©SD Association. SD, microSD and related marks and logos are trademarks of SD-3C LLC. © SD-3C LLC. All Rights Reserved.

GL9767 Exhibition at SDA booth in Computex©SD Association. SD, microSD and related marks and logos are trademarks of SD-3C LLC. © SD-3C LLC. All Rights Reserved.

Thank you very much for your time and listening !

©SD Association. SD, microSD and related marks and logos are trademarks of SD-3C LLC. © SD-3C LLC. All Rights Reserved.