| 摘要 |
<p>PURPOSE:To attain the simple time matching of plural incorporated clocks. CONSTITUTION:When a main power source 23 is turned off, and a power source is turned on by a power switch 15, a power control part 21 detects it, and supplied an activation signal 32 to the main power source 23, and the main power source 23 starts a power supply to each device in this processor. A main CPU 25 reads BIOS from an ROM 26, and initializes a system. That is, the set data (year/month/date/hour/minute/second) of a reference clock 17 are read, and transferred to the power control part 21. The power control part 21 sets the set data at a system clock 22. Then, the time display of the reference clock 17 is matched with the time display of the system clock 22. Next, DOS is loaded on an RAM 27 by the main CPU 25, and the system can be turned to a usable state.</p> |
