| 摘要 |
PROBLEM TO BE SOLVED: To enable the high-speed processing of interruption processing for the respective bit data of an ID card, etc., by operating an interruption processing address for each piece of bit data read from the card, executing the interruption processing according to an interruption processing program corresponding to this address and finishing the execution at every time of interruption processing. SOLUTION: When a card 2 is let run along the card reading path of a card reader part 1, at the card reader part 1, various kinds of data are sent out. Each time an interrupt signal is received, a data processing part 3 reads bit serial data from an I/O 4 and preserves them in a processing data memory 6. At the same time, a bit count value is read out of a bit counter and while using the calculation processing program in a program memory 5, the address corresponding to the interruption processing program is specified. When the address is found like this, interruption processing is executed while jumping to the interruption processing corresponding to that address, and the execution is finished at every time of interruption processing. |
