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Texas Instruments USB-TO-GPIO2 USB Interface Adapter Evaluation Module (EVM) serves as an interface adapter or a bridge between a host PC and one or multiple targeted devices through a standard type-A to mini-B USB cable. The communication between the USB interface adapter and the host PC is via USB. The communication between the USB interface adapter and the target device(s) is through an inter-integrated circuit (I2C), general-purpose inputs and outputs, GPIOs, or both. The Texas Instruments USB-TO-GPIO2 bridge converts communication transactions between the USB and I2C/GPIO.