Alcor Micro AU9540, Техническое справочное руководство

Страница: 11 / 18

AU9540 USB Smart Card Reader V1.6
7
4. System Architecture and Reference
Design
4
4
.
.
1
1
A
A
U
U
9
9
5
5
4
4
0
0
B
B
l
l
o
o
c
c
k
k
D
D
i
i
a
a
g
g
r
r
a
a
m
m
Figure 4.1 AU9540 Block Diagram
XCVR
Processor
EEPROM
Interface
ROM
Smart
Card FIFO
Reset
12MHz
XTAL
Voltage
Regulator
Card Eject
Card Reset
Card Insert
Card
Power
USB
SIE
USB
FIFO
RAM
Smart
Card
Control
Card Data
Card Clock
Optional
24CXX
EEPROM
USB
Upstream
Port