Bus Powered USB2.0 Flash Media Controller

Datasheet

SMSC USB2224

Page 5

Revision 1.3 (09-21-04)

DATASHEET

Chapter 2 Acronyms and Definitions

2.1

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

XD:

XD Picture Card

2.2

Definitions

Flash Media DMA UNIT (FMDU): The control logic in the flash media controller block as shown in the

Block Diagram that support the data transfer from CFC, SMC, MSC and SDC to EP2 buffer directly.

SD/MMC: the built-in SD controller (SDC) supports both SD and MMC devices.

Flash Media Controller Data Multiplexer (FMC DATA MUX): The multiplexer to enable the different data

path from the different flash media controllers (CFC, SMC, MSC and SDC).