I2C device including bus switches and programmable address

摘要

An I²C device is disclosed that includes a main I²C section, bus switches, switch logic, and address logic as part of the I²C device. The I²C device is coupled to an I²C bus for communicating with other I²C devices and an I²C bus controller that is also on the I²C bus. The switch logic controls a current position of the switches. The I²C device is coupled to the I²C bus utilizing the switches. The switches control whether the main I²C section, the address logic, the switch logic, or a combination of the main I²C section, address logic, and switch logic is currently coupled to I²C bus. The switches also can be used, if desired to remove from the buss all devices that are downstream from a given device containing switches. The address logic is used to receive and store the address of the I²C device. The I²C device will respond to the address that is stored in its address logic.