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The SC18IS600 is designed to serve as an interface between the standard SPI of a host
(microcontroller, microprocessor, chip set, etc.) and the serial I²C-bus. This allows the
host to communicate directly with other I²C-bus devices. The SC18IS600 can operate as
an I²C-bus controller-transmitter or controller-receiver. The SC18IS600 controls all the I²C-bus
specific sequences, protocol, arbitration and timing.