Interface chip device

Details Interface chip device Interface chip device

G - Physics

06

F

G06F 13/42 (2006.01) G06F 13/12 (2006.01)

Patent

CA 2074073

An interface chip device (10), provided for use in a time-division multiplex serial data bus system, is operable in a proces- sor interface mode and at least one remote mode wherein the device is capable of directly interfacing with I/O devices such as switches, sensors, converters, etc. The communication protocol of the bus system includes a plurality of commands. An echo mes- sage is provided on the data bus in response to the validation signal for each of the commands except for a broadcast command. The remote modes of the chip device include a remote switch mode, a data input mode, a data output mode or a combination of the remote modes. The chip device is divided into six main functional areas: encoder/decoder (44, 46), message analyzer (48), protocol sequencer (52), data storage (42), control timers (54) and input/output controller (60).

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