SMSC USB2250 User Manual

Ultra Fast USB 2.0 Multi-Slot Flash Media Controller

SMSC USB2250/50i/51/51i

7

Revision 1.1 (05-29-08)

SIE

CTL

FMDU

CTL

8051

PROCESSOR

SFR 

RAM

CF/

GPIO (16)

MS

SM

RAM

USB 
Host

AUTO_

CBW 

PROC

PHY

FMI

XDATA  BRIDGE

+ BUS ARBITER

BUS 

INTFC

BUS 

INTFC

BUS 

INTFC

EP0 TX

EP0 RX

EP2 TX

EP2 RX

EP1 RX

EP1 TX

ROM

64KB*

RAM

10KB

ADDR

MAP

GPIOs

Program Memory I/O Bus

PWR_FET0

PWR_FET1

PWR_FET3

PWR_FET2

11 pins

GPIO8/CARD_PWR0

GPIO9/CARD_PWR1

GPIO11/CARD_PWR3

1.8V

 Re

g

Clock 

Generation and 

Control

PL

L

GPIO10/CARD_PWR2

SD/

MMC

4K

total

*ROM is not available in USB2259