USB2241I-AEZG-06 Datasheet, PDF (4/8 Pages) Microchip Technology – Ultra Fast USB 2.0 Multi-Format, SD/MMC, and MS Flash Media Controllers

Ultra Fast USB 2.0 Multi-Format, SD/MMC, and MS Flash Media Controllers
Block Diagrams
USB
Host
3.3 V
VDD18
24 MHz
Crystal
VDD18PLL
USB2240 / 40i
USB2241 / 41i*
PHY
SIE
CTL
BUS
INTFC
AUTO_CBW
PROC
BUS FMDU ^FMI
INTFC CTL
1.8 V Reg
PLL
BUS
INTFC
EP0 TX
EP0 RX
RAM
EP1 RX
EP1 TX
EP2 RX
EP2 TX
XDATA BRIDGE
+ BUS ARBITER
SD/
MMC
MS
xD*
4K
total
Multiplexed
Interface
3.3 V
1.8 V Reg
RAM
10 KB
ROM
64 KB
ADDR
MAP
Clock
Generation and
Control
PWR_FET1
GPIOs
Program Memory I/O Bus
8051
PROCESSOR
SFR
RAM
GPIO10 / CRD_PWR
8 pins
NOTE: xD-Picture Card is not applicable to USB2241/41i.
Figure 1 USB2240/40i/41/41i Block Diagram
Revision 2.1 (02-07-13)
4
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SMSC USB224x