| 摘要 |
PURPOSE:To reduce the number of input/output terminals and simplify the function or the like, by discriminating an address signal of an address setting part, which can be set to every load driving unit, and an address signal from a main controlling part in an address signal discriminating part to obtain load driving information. CONSTITUTION:A peculiar address is set preliminarily to every load driving unit U by an address setting part 30, and units are distinguished from one another by the signal. When an address signal is inputted to each load driving unit U from a main controlling part 20 through an address line 35, the address input signal is decoded in an address signal discriminating part 31 and is compared with the address set by the address setting part 30, and it is discriminated whether they coincide with each other or not. If they coincide with each other, load driving information transmitted from the main controlling part 20 through a data line 36 is taken into a storage part 32 temporarily. Thereafter, this information is sent to a driving part 33 at a prescribed timing to drive a load 34. |
