USB2250 Datasheet, PDF (7/43 Pages) SMSC Corporation – Ultra Fast USB 2.0 Multi-Format Flash Media Controller

USB2250/50i/51/51i
3.0 BLOCK DIAGRAM
FIGURE 3-1:
USB2250/50I/51/51I BLOCK DIAGRAM
USB
Host
USB2250 / USB2251
PHY ^SIE
BUS
CTL INTFC
AUTO_CBW
PROC
BUS FMDU ^FMI
INTFC CTL
SD/
MMC
CF/
GPIO (16)
MS
3.3 V
VDD18
24 MHz
Crystal
VDD18PLL
3.3 V
1.8 V Reg
PLL
BUS
INTFC
EP0 TX
EP0 RX
RAM
EP1 RX
EP1 TX
EP2 RX
EP2 TX
XDATA BRIDGE
+ BUS ARBITER
SM
4K
total
1.8 V Reg
PWR_FET0
PWR_FET1
PWR_FET2
PWR_FET3
GPIOs
RAM
10 KB
ROM
64 KB
ADDR
MAP
Clock
Generation and
Control
Program Memory I/O Bus
8051
PROCESSOR
SFR
RAM
CRD_PWR0
CRD_PWR1
CRD_PWR2
CRD_PWR3
 2009 - 2015 Microchip Technology Inc.
DS00002005A-page 7