| 摘要 |
PROBLEM TO BE SOLVED: To overcome the problems of a conventional multi connection method, that power consumption of an output interface circuit of a controlling part increases, and transmission properties deteriorate by the increase of signal lines which multi-connect controlling parts and controlled parts, when the number of controlled parts increases. SOLUTION: The multi connection method comprises controlling part 1 which outputs main controlling signals as well as controlled part selecting information Ca to Cn as the main controlling validity information to see if the main controlling signal's validity or invalidity, controlled part 3-1 to 3-N which are mainly controlled by the main controlling signals from the controlling part 1, and signal separating circuit 2-1 to 2-N which separate the delivery when the controlled part selecting information Ca to Cn is invalid and deliver main controlling signals from the controlling part 1 to uncontrolled parts, which make response when the controlled part selecting information Ca to Cn from the controlling part 1 is valid, and whose output side is connected to 3-1 to 3-N, respectively, and input side is multi-connected to the controlling part 1.
|
