| 摘要 |
<p>PURPOSE:To exactly execute an operation against a variation of supply voltage, by comparing an optional data stored in the first storage means with a fixed data stored in the second storage means, and setting an electronic circuit to an initial state, in case of dissidence of both the data. CONSTITUTION:A reference clock of an electronic clock is divided by a frequency-dividing circuit 2, a signal of 1/16Hz is applied to an FF3 from a prescribed frequency-divided stage, and the FF3 is set at every signal. This output is provided as an address to an ROM6 through an address part 5. In this ROM6, 4 kinds of fixed data are stored, an address AD from the ROM6 is provided to an RAM7, and an operation code OP and a data DA are provided to an operation decoder 8 and an operating circuit 9, respectively. Subsequently, an optional numerical data stored in registers N1-N4 of the RAM7, and a fixed numerical data of the ROM6 are compared and decided by the circuit 9, and in case of dissidence, a display register of a display part 10 is cleared, and the electronic circuit is set to an initial state.</p> |
