| 摘要 |
An exemplary inter integrated circuit bus of a controlling system ( 200 ) includes a clock line (SCL 11 ), data lines (SDA 12, SDA 13, SDA 14 ), a programmed control unit ( 20 ), and peripheral devices each having an address. The programmed control unit includes a plurality of ports ( 11~14 ) which are connected to the clock line and the data lines respectively. The programmed control unit controls each peripheral device by transmitting a clock signal and a controlling signal thereto via the clock line and one of the data lines that has the same address as that of the peripheral device.
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