Intelligent card integrated with multiple chips and control method thereof
The invention provides an integrated multi-chip smart card and a control method thereof, the smart card comprises a master chip and a plurality of slave chips, the master chip is connected with a 7816 interface of an external card reader through a master IO interface, so that the master chip can obt...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention provides an integrated multi-chip smart card and a control method thereof, the smart card comprises a master chip and a plurality of slave chips, the master chip is connected with a 7816 interface of an external card reader through a master IO interface, so that the master chip can obtain a control instruction from the external card reader; the IO interface of each slave chip is independently connected to different GPIO interfaces of the master chip, each GPIO interface can simulate a 7186 interface by simulating a 7186 time sequence, and when the slave chips need to execute a control instruction, the master chip can send the control instruction to the specified slave chip based on the simulated 7186 time sequence, so that the control instruction can be executed by the slave chips. And response information is fed back to the external card reader through the master chip, so that information communication and independent operation between the master chip and the slave chip are realized. According |
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