| 摘要 |
<p>PURPOSE:To simultaneously and accurately output plural different pulse signals with a simple constitution by providing an external trigable timer in a microcomputer. CONSTITUTION:A pulse signal generating device is formed in one chip of microcomputer. The microcomputer is constituted by connecting an operation circuit 2, a RAM 3, a ROM 4, an operation command input part 5 and an output port part 6 to an internal bus 1. And the operation based on the command is executed in the operation circuit 2 and the pulse signal as operated result is supplied to the output port part 6 so as to be outputted as a control signal. IN this case, the external trigable timer (ETT) 10 is connected to the internal bus 1. The timer 10 is constituted with a data register 11, a comparator 12 and a counter 13 and the clock signal which a clock signal generator 7 outputs from the outside is supplied to the timer 10. Then, the count signal and the data latch signal of the clock are compared and the comparison signal is supplied to the output port part 6 as the control signal.</p> |
