| 摘要 |
PURPOSE: To supply various kinds of different control signals through only one control port by using a 1st cyclic control signal and a 2nd cyclic control signal time-shifted to this 1st signal. CONSTITUTION: An evaluation circuit composed of a frequency divider 1 and a logic coupling element 2 sends out a 1st cyclic control signal A. This control signal A is supplied through a logical coupling element 7 to an FF3, and a 2nd cyclic control signal B timewisely shifted in comparison with the control signal A can be provided. Then, the control signals A and B are supplied through a logical coupling element 4 to a data processor as control signals INTR1 and INTR2. As a result, these control signals can be led through only one control line to the data processor as signals of which the pulse lengths are variously changed. |
