Method, system and apparatus for read-write operation of smart card
A reading and writing device and technology for reading and writing operations, applied in the field of electronics, can solve the problems of slow speed and long-time reading and writing operations, reduce the time, improve the speed of data processing, and facilitate the promotion and development.
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[0028] The smart card reading and writing device in the embodiment of the present invention can select a clock frequency higher than the current clock frequency of the smart card from the clock frequencies supported by the smart card, and reset the smart card according to the selected clock frequency, and adjust the clock frequency of the smart card to the selected clock Frequency, because the clock frequency of the smart card can be increased, thereby improving the communication speed of the I / O interface between the smart card reading and writing device and the contact smart card, reducing the time for reading and writing operations.
[0029] Wherein, the current clock frequency of the smart card is the clock frequency supported by the smart card by default, that is, the highest clock frequency supported by the smart card according to the ISO7816-3 protocol or below.
[0030] For example, according to the ISO7816-3 protocol, all smart cards should support a clock frequency of...
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