3.0. System Block Diagram
The USB Hub Controller is the communication interface between the PC and the MCU of the smart
card and flash memory via USB port connection. The 1-GB flash memory is available for the end-user
to use as storage. In Windows Explorer, the device is detected as a removable disk. The ACR101
(CCID) is powered from the USB port without other external power supply.
1-GB Flash Memory
USB
Interface
Computer
USB 2.0
Hub
Controller
Smart Card
Smart Card
Interface Circuit
Figure 1:
ACR101 System Block Diagram
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Document Title Here
Document Title Here
ACR101 PC/SC Memory Card Access
Version 1.0
Page 5 of 19
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