| 摘要 |
PURPOSE:To unify address circuits to be connected to the outside to one circuit, and to remove a malfunction by a simple constitution, by counting an address clock positioned between reset signals which are superposed on a data signal, and obtaining an address signal. CONSTITUTION:Data signals D1-D4 on which a reset signal SR and a carry signal SC have been superposed from input terminals 1-4 are supplied to a memory 5, a reset discriminating circuit 6 and a latching circuit 7, respectively. A counter 8 of an address clock is reset whenever the signal SR is detected, and the data signal is synchronized with the address clock. Output signals Q1-Q3 of the counter 8 are supplied to the memory 5 as address signals A1-A3, respectively, and also to a carry discriminating circuit 10. As a result, the lowest rank digit of the address is designated by signals A0-A3, an upper digit than the lowest rank digit is designated by signals A4-A7, and the signals D1-D4 are stored in the prescribed address. |
