| 摘要 |
PURPOSE:To allow a reader/writer to correspond to the cards of various protocol specifications by reading out information indicating a protocol specification from an IC card, selecting a format table and a parameter setting table and converting data or an instruction. CONSTITUTION:An IC card 10 mounts a recording part 10b recording information indicating the sort of the IC card on its surface. When the card 10 loaded to a reader/writer 1, a reader 7 reads out information from the recording part 10b at first. The information is supplied to a CPU 2 and processed to decide the protocol specification of the IC card. The CPU 2 selects a format conversion table and a parameter setting table corresponding to the sort of the card 10 from a memory 7 based on the decided result, converts data or an instruction so that they can be fetched from a host computer 9 by the card 10 or converts data read out by the card 10 so that the data can be inputted by the computer 9.
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