| 摘要 |
<P>PROBLEM TO BE SOLVED: To surely hold storage contents of a storage section and to surely clear the storage contents of the storage section, in a game machine capable of preserving data in the storage section whose power is backed up even when the power of the game machine is interrupted and capable of clearing the data by interrupting backup power. Ž<P>SOLUTION: Between the backup power terminal of a CPU 56 and the ground, a capacitor 909 is connected. The capacity of the capacitor 909 is such that the contents of a RAM are held for several seconds when the backup power is interrupted. For the CPU 56 used in the game machine, such capacity is about 1,000 pF-0.1 μF (corresponding to the holding time of about 1 to 4 seconds). The value is smaller than the capacity of the capacitor 908 connected to a power terminal (VDD terminal). Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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