| 摘要 |
PURPOSE:To increase the flexibility relating to system change and the efficiency of data transfer, by performing the transfer of data in data area when the corresponding flag is set. CONSTITUTION:A processor 1-1 writes in the data to a data area 3a of an image memory 3-1. After that, the flag of the input and output device 6 in the flag area 3a of the image memory 3-1 is set. The control device 7 always scans the flag area 3a image memories 3-1-3-n, and when it detects that the flag of the input and output device 6 is set, the data of the data area 3a of the image memory 3-1 is read out and it is transferred to the input and output device. Further, when the transfer of data is finished, the flag of the input and output device 6 is reset for the next scanning. |
