| 摘要 |
<p>PURPOSE:To provide the data input device which can input and output data at high speed through a few control signal lines. CONSTITUTION:Data on a data bus in the case of ending a control signal CNT 2 and data on the data bus 5 in the case of starting the control signal CNT 2 are extracted, and both data are compared by a digital comparator 39. When both data are same, the data on the data bus 5 are inputted corresponding to the following control signal CNT 2. After the data are simultaneously inputted, a counter 11 is incremented by + 1, the address of a storage position for inputting the next data are advanced, when both data are not same as the compared result of the digital comparator 19, the counter 11 is reset and the address of the storage position is initialized.</p> |
