| 摘要 |
PURPOSE:To correct the time without the influence upon the system processing operation, by counting fundamental clocks and correcting the time in accordance with a correcting value for the correction time, which is set at intervals of a prescribed counted time, and a unit correcting value. CONSTITUTION:A time counting clock signal B-CLK from a fundamental clock generating part 11 is counted in a counter CTR of a clock count correcting part 12; and when the counted value becomes a prescribed value, a time counting signal Ti is sent to a CPU. In case of correction of the time in the CPU, a correcting value setting operation part 21 of a correcting value setting display part 13 is operated to set a correcting value RA for a time to be corrected, and this value RA is displayed on a correcting value display part 31; and a unit correcting value operation part 22 is operated to set a unit correcting value RS for every signal TI to the signal RA, and this value RS is displayed on a unit correcting value display part 32. When set correcting values RA and RS are sent to the correcting part 12, the initial value of the counter CTR is corrected in accordance with the correcting value RA by a correction controlling part S, and correction is performed for every signal TI in accordance with the correcting value RS by the part S, and these operations are repeated until the value on the display part 31 becomes 0. |
