| 摘要 |
PURPOSE:To improve operability and dependability by eliminating the need for an increase of the number of signal lines by performing data setting corresponding to respective circuits, of a data setting circuit whose circuits are the same in circuit structure in plural by three signal lines. CONSTITUTION:At the time of fetching all data 0-(n-2), because address data fetched by a U/D counter 5 do not correspond to those (n-1) fetched in an address register 13, set data fetched by the second shift register 3 are not fetched in a data register 16, thereby giving no change to the contents of the data register 16. At the time of fetching data (n-1), the address data (n-1) fetched by the U/D counter 5 correspond to those (n-1) fetched in the register 13, the device fetches data (n-1) set data (n-1) fetched in the register 13 in the register 16, and at the same time because of blocking an AND gate circuit 15, the device does not change the contents of the register 16. |
