| 摘要 |
PROBLEM TO BE SOLVED: To provide a data transfer system which shortens the processing time at transferring of data from a device 1, where uncoded data requiring coding are inputted, to a device 2 by a card bus 3. SOLUTION: In this data transfer system, in the device 1, CPU 10 stores uncoded data in a RAM 11, and after storage, it informs the device 1 of the retention of uncoded data, using a card bus 3; in the device 2, CPU 20 sends out a request for transfer start to a transfer circuit 22, using the card bus 3, when it receives the information; and the transfer circuit 2, when it receives the request for transfer start, performs transfer of the uncoded data using the card bus 3 from the RAM 11 to the transfer circuit 22, coding into coded data of the uncoded data by cipher key, and tranfer using the card bus 3 to the RAM 21 of the coded data, at the same time. |
