| 摘要 |
PURPOSE:To prevent the occurrence of overrun by interrupting the current processing to control a device where the response time is limited if an interrupt request from this device is detected when the control of a device where the response time is not limited is executed. CONSTITUTION:A processor 1 is provided with input/output controllers 6 and 7 which are started by interrupt signals from input devices 2 and 3 respectively. The device 1 is so constituted that the response time is limited, and the device 2 is so constituted that the response time is not limited. The control part 7 monitors the occurrence of the interrupt signal from the device while it controls the device 3. When the interrupt signal is detected, a restoration time is set to a timer 8 to stop the executing control, and the control part 6 is started. When the restoration time of the timer comes thereafter, the former interrupted control is restarted by the timer interrupt. |
