| 摘要 |
The IC Card includes a main device having a microprocessor and a memory unit, and an I/O contact pad for a connection between the main device and a read write device, also referred to as a main interconnection. The IC card also includes additional device connectable to the main device via a secondary interconnection including the I/O contact pad, and a switch control for selectively switching between the main interconnection, for a transmission of data between the read write device and the main device, and the secondary interconnection, for a transmission of data between the main device and the additional device.
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