What is the difference between I2S and I2C on the Blackfin processor? Can I use a SPORT to communicate with an I2C device?
I2C (otherwise known on the Blackfin as the two wire interface -- TWI) is a low-speed, addressable interface capable of having 112 devices (7 addressable bits worth, with 16 reserved addresses) connected at any one time. Typically, devices such as eeprom memories, I/O expansion, and the control interfaces for high-speed ADC's and DAC's use I2C.
I2S (or inter-IC sound) is a standard for connecting (typically) an audio DAC or ADC to a processor. The Blackfin SPORT supports this mode, which is a high speed serial interface; typically this standard is used for connecting just two integrated circuits to each other.
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