| 摘要 |
PURPOSE:To shorten the transmission time of data by providing an address conversion part which converts an address of a main memory which is outputted to an address bus into an address of a shared memory between the address bus and shared memory. CONSTITUTION:When the DMA transfer of data from an input/output control part 14 to the main memory 12 is performed, the address conversion part 18 provided between the address bus 16 and shared memory; 13 converts an address of the main memory 13 which is outputted to the address bus 16 into an address of the shared memory 13. Therefore, the shared memory 13 can be stored with the data and data transmission to the shared memory 13 can be performed simultaneously with data transmission to the main memory 12. Thus, the time of the data transmission can be shortened. |
