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DSI (Distributed Systems Interface)Bus, developed by the Freescale, is an Automotive Protocol. It is mainly used for the sensor of the Automotive Airbag. At present, many manufacturers of the Airbag System have adopted the Protocol Analyzer DSI Bus, such as TRW and DENSO (DENSO CORPORATION).
The advantages of the Protocol Analyzer DSI Bus are that all Sensors can be connected in serial to do the transmission, and with the help of the Protocol Analyzer DSI Bus, the Senors can be powered on.