USB2229/USB2230

DS00002252A-page 4

 2005-2016 Microchip Technology Inc.

1.0

GENERAL DESCRIPTION

The USB2229/USB2230 is a Hi-Speed USB IrDA and Bulk Only Mass Storage Class Peripheral Controller. The Bulk

Only Mass Storage Class Peripheral Controller supports CompactFlash (CF) in True IDE Mode only, SmartMedia (SM),

Memory Stick (MS) including both serial and parallel interface and Secure Digital/MultiMediaCard (SD/MMC) flash

memory devices. It provides a single chip solution for the most popular flash memory cards in the market. In addition,

the IrDA controller consists of the Microchip IrCC block, which includes a Synchronous Communications Engine (SCE).

The IrCC SCE supports FIR and SIR IrDA. The IrCC offers flexible signal routing and programmable output control

through the Raw mode interface, General Purpose Data pins and Output Multiplexer. Chip-level address decoding is

required to access the IrCC register set.

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

gram SRAM, and IrDA, CF, MS, SM and SD controllers. The SD controller supports both SD and MMC devices.

Provisions for external Flash Memory up to 128K bytes for program storage is provided (note: when Bank switching is

enabled the upper 64K will map into the 8051 ROM space, otherwise, only the first 64K bytes is used).

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

Twelve GPIO pins are provided for indicators, external serial EEPROM for OEM ID and system configuration informa-

tion, and other special functions.

Internal power FETs are provided to directly supply power to the xD/SM, MMC/SD and MS/MSPro cards.

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. Microchip also provides licenses** for Win98

and Win2K drivers and setup utilities. Note: Please check with Microchip for precise features and capabilities for the

current ROM code release.

1.1

Acronyms

SM:

SmartMedia

SMC:

SmartMedia Controller

FM:

Flash Media

FMC:

Flash Media Controller

CF:

Compact Flash

CFC:

CompactFlash Controller

SD:

Secure Digital

SDC:

Secure Digital Controller

MMC:

MultiMediaCard

MS:

Memory Stick

MSC:

Memory Stick Controller

TPC:

Transport Protocol Code.

ECC:

Error Checking and Correcting

CRC:

Cyclic Redundancy Checking

1.2

Reference Documents

1.

2.

3.

4.

SMIL (SmartMedia Interface Library) Software Edition Version 1.00, Toshiba Corporation, 01, July, 2000

5.

SMIL (SmartMedia Interface Library) Hardware Edition Version 1.00, Toshiba Corporation, 01, July, 2000

6.

MultiMediaCard System Specification Version 2.2

7.

SD Memory Card Specifications, Part 1, Physical Layer Specification Version 1.10, April 2003, SD Group

8.

9.