EK-TM4C123GXL Tiva C LaunchPad Evaluation Board Texas Instruments EK-TM4C123GXL Tiva™ C LaunchPad Evaluation Board is a low-cost evaluation platform for ARM® Cortex™-M4F-based microcontrollers. The evaluation board's design highlights the TM4C123GH6PM microcontroller USB 2.0 device interface, hibernation module, and motion control pulse-width modulator (MC PWM) module. The Texas Instruments EK-TM4C123GXL also features programmable user buttons, and an RGB LED for custom applications. The stackable headers of the evaluation board's interface demonstrate how easy it is to expand the functionality of the EK-TM4C123GXL when interfacing to other peripherals on many existing BoosterPack add-on boards as well as future products.