摘要 |
PURPOSE:To shorten the parameter write execution time by writing the same parameter data in prescribed plural parameter storage positions by only executing one write instruction. CONSTITUTION:A comparator CO compares a channel address signal inputted to terminals CA0 to CA3 and a CH counter signal inputted to terminals TQ0 to TQ3, and when they coincide with each other, an equal signal EQ is outputted, and parameter data latched in a data latch DTL is written in shift registers R1 to RN. Also, by a state of a flag FL for showing whether the simultaneous write is executed to plural channels or not, the terminal CA1 and TQ1 of the comparator CO always coincide with each other, when a signal MASK is '1', and the signal EQ is sent out by a prescribed combination of the CA value and the TQ value. In such a way, it is possible to write simultane ously to plural parameter storage positions, and the parameter write execution time is shortened. |