| 摘要 |
PURPOSE:To make wiring of a sign signal unnecessary, by sending out the sign signal by a data bus for sending out contents of a counter. CONSTITUTION:Contents of days of a week, hour, minute and second which have been sent through data buses DB1-DB4 are converted 35 to a signal of 7 segments, are stored and held in order to latching circuit groups 36-42, and are displayed. Also, display signals of AM, PM, DATA, AIM and an alarm sign are sent through the data buses DB1-DB4, are stored and held in a latching circuit 43, and are displayed. |
