| 摘要 |
<p>PURPOSE:To improve the processing efficiency with the titled control system by checking the operating defect of a central control unit through a check circuit and controlling the clock speed of said control unit according to its defect ratio. CONSTITUTION:The operating speed of a central control unit 1 is controlled by its clock speed. A check circuit 2 detects the error (malfunction) of the control unit 1 and a clock control circuit 3 controls said clock speed based on the information received from the circuit 2. Thus the control unit 1 starts its operation at a speed of the initial clock value received from the circuit 3. Under such conditions, the circuit 2 monitors the presence or absence of the operating defect of the control unit 1. This monitor result is sent periodically to the circuit 3 in the form of error rates and decided there. Then the clock speed is controlled.</p> |
