| 摘要 |
PROBLEM TO BE SOLVED: To prevent an increase of a memory area.SOLUTION: Input port data B0I7 which can specify input states of input ports of a PIP, respectively, are stored in an input port buffer B0I in addition to input data B0I0 to input port data B0I5 which can specify input states of respective bits of the input port IP0. In switch processing, determination is made whether an input state of a detection signal in each bit of the input port and an input state of a detection signal in the input port of the PIP are changed by determining whether each of the input data B0I0 to the input data B0I5, and the input port data B0I7 which are stored in the input port buffer B0I coincides with a common logic value "1". |
