| 摘要 |
PURPOSE:To store time information and so on surely with a simple operation, by writing continuous time-related information, which is displayed by accessing the memory, into the RAM through prescribed switches. CONSTITUTION:Signal (h) is inverted to the high level by monostable multivibrator FF, the decoder, and so on according to set of prescribed switches, and AND gate 83 of time display control circuit 5 is opened. The clock pulse passing through gate 83 and inverter 84 becomes the write command signal to RAM82, and signal 1 is written to the area of RAM82 corresponding to the time by the address corresponding to time information from address counter 70. Simultaneously, the clock passing through gate 83 is latched in latch circuit 97C and is applied to the display control circuit as the display command signal, and the time from the time counting circuit is displayed on the display part, so that time information can be stored in the RAM for time display and so on while confirming it with display by a simple operation. |
