Problem
1. Does the 12C clock frequency need to be exactly equal to 100 KHz or 400 KHz? Why?
2. How many slave devices are supported in a 7-bit address scheme? Try to review the datasheets of peripheral devices with I2C interface and provide a realistic number of devices supported in an 12C bus system.
3. Suppose that the 7-bit address of an 12C slave is B1lO1O1 A1 AO' with A1 tied to low and A0 pulled to high. What is the 8-bit hex write address for this device? What is the 8-bit hex read address?