| 摘要 |
PURPOSE:To display the frequency division ratio of a frequency dividing circuit and power consumption on the same display circuit selectively by providing a frequency division ratio setting circuit which sets the frequency division ratio and a display switching circuit which reads the set frequency division ratio and displays the frequency division ratio and power consumption on the same display circuit selectively. CONSTITUTION:A display control circuit 21 normally sends out a low-level display command signal H, and the switching circuit 23, therefore, selects a counter value signal K from a counter 6 and a display driving circuit 7 drives the display circuit 8 according to the counter value signal K to display to power consumption. When the frequency division ratio is set by the frequency division ratio setting circuit 9, display selection signals P1 and P2 are outputted to the switching circuit 23, which sends out the counted value K and frequency division ratio S to the display driving circuit 7 selectively on a time-division basis as a signal G. Consequently, the display circuit 8 displays the power consumption and frequency division ratio S on the time-division basis. |
