| 摘要 |
<p>PURPOSE:To attain processing to a state before occurrence of power failure and after power reapplication even if a power failure takes place without increasing the load to a power supply section by making an end state storage section writable externally. CONSTITUTION:A central processing unit 9 saves its internal information to a storage device 10 at power failure to the end state storage section 12 in a peripheral device 11 after reapplication of power supply and outputs an ineffective instruction to the peripheral device 11. Then the internal information saved in the storage device 10 is restored to apply the processing before power failure. Thus, the power supply section 7 can be operated even during the power failure while the central processing unit 9 saves the internal information to the storage device 10. Thus, the processing to the state before power failure is continued after reapplication of power supply regardless of power failure without increasing the load of the power supply section 7.</p> |
