| 摘要 |
PROBLEM TO BE SOLVED: To certainly guarantee consistency of data in time of data transfer between an input/output device and a memory. SOLUTION: An input/output controller 14 starts the transfer for writing data sent from the input/output device 13 into a prescribed area on the main memory 11 not through a CPU 12, performs reading of the data to the prescribed area on the main memory 11 after the final writing transfer, confirms a response to confirm that all pieces of the data related to the transfer are written on the memory, and generates an interrupt showing that the transfer is completed. An interrupt controller 15 receives the interrupt generated from the input/output controller 14, and conveys the interrupt to the CPU 12. COPYRIGHT: (C)2006,JPO&NCIPI
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