| 摘要 |
PURPOSE:To restrain increment of connections between a signal generation part and plural signal receiving parts to a minimum for increment of the number of signals, by providing a synchronizing signal line and a data signal line and by synchronizing the data signal with the synchronizing signal. CONSTITUTION:Signal generation part 1 and plural signal receiving parts 11-13 are connected by data signal line 9 and synchronizing signal line 10. The synchronizing signal from signal generation part 8 is always supplied to receiving parts 11-13. Peculiar addresses different from one another are set to receiving parts 11-13 individually. In respect to data transmitted from generation part 8 to signal line 9 serially, the address word and the data word are transmitted in order. In receiving parts 11-13, the synchronizing signal is utilized to input contents of the address word from signal line 9, and they are compared with addresses set peculiarly to receiving parts individually; and if they agree with each other, the following data word is input. Consequently, since the synchronizing signal and the data signal transmitted to signal line 9 are synchronized with each other, signal lines 9 and 10 can cope with increment of the number of signals, and the data signal can be input simply in the signal receiving part. |
