Bus Powered USB2.0 Flash Media Controller

Datasheet

Revision 1.3 (06-13-06)

Page 4

SMSC USB2224

DATASHEET

Chapter 1

General Description

The USB2224 is a USB2.0 Bulk Only Mass Storage Class Peripheral Controller intended for supporting

CompactFlash (CF and CF Ultra I/II) in True IDE Mode only, SmartMedia (SM) and XD cards, Memory

Stick (MS), Memory Stick DUO (MSDUO) and Memory Stick Pro (MSPRO), Secure Digital (SD), and

MultiMediaCard (MMC) flash memory devices. It provides a single chip solution for the most popular flash

memory cards in the market.

The device consists of a USB2.0 PHY and SIE, buffers, Fast 8051 microprocessor with expanded

scratchpad, and program SRAM, and CF, MS, SM and SD controllers. The SD controller supports both SD

and MMC devices.

Provisions for external Flash Memory up to 64K bytes for program storage is provided.

12K bytes of scratchpad SRAM and 768 Bytes of program SRAM are also provided.

Fifteen GPIO pins are provided for indicators, external serial EEPROM for OEM id and system

configuration information, and other special functions.

The internal ROM program is capable of implementing any combination of single or multi-LUN

CF/SD/MMC/SM/MS reader functions with individual card power control and activity indication. SMSC also

provides licenses** for Win98 and Win2K drivers and setup utilities. Note: Please check with SMSC for

precise features and capabilities for the current ROM code release.

*Note: In order to develop, make, use, or sell readers and/or other products using or incorporating any of the SMSC devices

made the subject of this document or to use related SMSC software programs, technical information and licenses under patent

and other intellectual property rights from or through various persons or entities, including without limitation media standard

companies, forums, and associations, and other patent holders may be required. These media standard companies, forums,

and associations include without limitation the following: Sony Corporation (Memory Stick, Memory Stick Pro); SD3 LLC

(Secure Digital); MultiMedia Card Association (MultiMediaCard); the SSFDC Forum (SmartMedia); the Compact Flash

Association (Compact Flash); and Fuji Photo Film Co., Ltd., Olympus Optical Co., Ltd., and Toshiba Corporation (xD-Picture

Card). SMSC does not make such licenses or technical information available; does not promise or represent that any such

licenses or technical information will actually be obtainable from or through the various persons or entities (including the media

standard companies, forums, and associations), or with respect to the terms under which they may be made available; and is

not responsible for the accuracy or sufficiency of, or otherwise with respect to, any such technical information.

SMSC's obligations (if any) under the Terms of Sale Agreement, or any other agreement with any customer, or otherwise, with

respect to infringement, including without limitation any obligations to defend or settle claims, to reimburse for costs, or to pay

damages, shall not apply to any of the devices made the subject of this document or any software programs related to any of

such devices, or to any combinations involving any of them, with respect to infringement or claimed infringement of any existing

or future patents related to solid state disk or other flash memory technology or applications ("Solid State Disk Patents"). By

making any purchase of any of the devices made the subject of this document, the customer represents, warrants, and agrees

that it has obtained all necessary licenses under then-existing Solid State Disk Patents for the manufacture, use and sale of

solid state disk and other flash memory products and that the customer will timely obtain at no cost or expense to SMSC all

necessary licenses under Solid State Disk Patents; that the manufacture and testing by or for SMSC of the units of any of the

devices made the subject of this document which may be sold to the customer, and any sale by SMSC of such units to the

customer, are valid exercises of the customer's rights and licenses under such Solid State Disk Patents; that SMSC shall have

no obligation for royalties or otherwise under any Solid State Disk Patents by reason of any such manufacture, use, or sale of

such units; and that SMSC shall have no obligation for any costs or expenses related to the customer's obtaining or having

obtained rights or licenses under any Solid State Disk Patents.

SMSC MAKES NO WARRANTIES, EXPRESS, IMPLIED, OR STATUTORY, IN REGARD TO INFRINGEMENT OR OTHER

VIOLATION OF INTELLECTUAL PROPERTY RIGHTS. SMSC DISCLAIMS AND EXCLUDES ANY AND ALL WARRANTIES

AGAINST INFRINGEMENT AND THE LIKE.

No license is granted by SMSC expressly, by implication, by estoppel or otherwise, under any patent, trademark, copyright,

mask work right, trade secret, or other intellectual property right.

**To obtain this software program the appropriate SMSC Software License Agreement must be executed and in effect. Forms

of these Software License Agreements may be obtained by contacting SMSC.