| 摘要 |
PURPOSE:To arbitrarily set a pulse width for noise discrimination to prevent the delay of response by comparing contents of a shift register and a comparison register with each other and generating an interruption signal when they coincide with each other. CONSTITUTION:When an interrupt request signal 2 from an external device 1 is inputted to a shift register 3, a comparator 4 compares the output of the shift register 3 with that of a comparison register 5. If they coincide with each other, an interruption signal 6 is generated. Contents of the comparison register 5 are set by a program to arbitrarily set the pulse width for noise discrimination. |
