| 摘要 |
PURPOSE:To store easily keying data and its keying generating order, by adding a storage section and a write control circuit to a keyboard device. CONSTITUTION:A generating code inputted from a data line 5 being an output signal of a keyboard control section 2 is stored once in a data register 21 of a write control circuit 20 by a data sample signal 11. On the other hand, a control circuit 22 counts up a signal to a write signal line 12 transmitted to a storage section 23 and a signal to an address signal line 13 by the data sample signal and generates it. The storage section 23 stores sequentially a code generated from the control section 2 by the write signal 12 and the address signal 13 sent from the circuit 22 by designating the signal from the register 21 as input data. Further, the storage section 23 receives the power supply from a power supply 24 independent of the keyboard device. Thus, the data of the storage section 23 is stored even if the storage section is cut off from the power supply of the keyboard device and the storage section 23 and the power supply 24 are incorporated and removable. |
