Abstract: An electronic timepiece with timer function comprising a stopwatch counting means operated from the signal from an input means, timer subtraction counting means for making subtraction from an arbitrary set value in the interlocking arrangement with said stopwatch counting means, an interrupt controller for outputting starting signal to said stopwatch counting means and said timer subtraction counting means, wait time counting means for counting the time from time-up to a lap time processing when the signal from said input means is the lap time processing of stopwatch time counting and the time of said subtraction timer is up before said lap time processing, and counting means for counting the time till time-up when said lap time processing is before said time-up.The timepeice can let the runner of the marathon and the like know easily the delay and advance from the set timer set by him.

Abstract: An initial value setting system for an electronic device having system clearing means for generating a trigger pulse in response to power source voltage fluctuation, counter means for counting intervals between the trigger pulses generated successively by the system clearing means, and initial value setting means for undergoing an initialize operation of the electronic device in response to the counter means. In accordance with the present invention, an erroneous execution of all-clear due to electrostatic disturbance noise can be prevented by counting interval or number of the trigger pulses, and discreminating whether or not the initial value setting means should be operated.