The 1-Wire serial bus uses only one wire to connect to the peripherals, for some devices this single wire even provides the required power. This makes the bus very suitable for applications where there are a predefined number of wires available.


This controller is designed to be implemented in a digital audio tone generator. The generator had standard S/PDIF, EAS/EBU and optical outputs and a proprietary serial port to connect protocol specific break-out dongles. Each of these dongles should have a 1-Wire eeprom with some identification, serial number and signal configuration. With a bus like I2C, three additional wires would be needed to create a bus for this. With 1-Wire however, only one additional wire is needed.

The controller was supposed to be implemented in an Spartan-II FPGA.


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