| 摘要 |
PURPOSE:To improve the easiness of use of an IC card by quickly reading the content of a transaction area stored in the memory of an IC card and displaying it. CONSTITUTION:When the reading of the latest transaction data is requested from a keyboard 2, this is sent to an IC card side through an output buffer 24 by the command of a main controller 17. The IC card writes the request in a working RAM, and the command is given to a storage memory read/write controller based on it, and the data of the latest transaction area are read out. Data of the latest transaction area thus read out are sent to the terminal side through an output controller. The terminal writes the data in the working RAM 13, and the command is given by a main controller 17 to a display drive controller based on the content, and displayed in a display section 3. |
