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Ultra Fast USB 2.0 Multi-Slot Flash Media Controller
Datasheet
SMSC USB2250/50i/51/51i 7 Revision 1.1 (05-29-08)
DATASHEET
Chapter 2 Block Diagram
Figure 2.1 USB2250/50i/51/51i Block Diagram
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 Reg
Clock
Generation and
Control
PLL
GPIO10/CARD_PWR2
SD/
MMC
4K
total
*ROM is not available in USB2259