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Ek-tm4c123gxl board GPIO Programming

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EmSys:ek-tm4c123gxl GPIO - GPIO & Special Purpose I/O
Slide 1 of 41  
  
  • While memory holds code and data for the CPU to process, the I/O ports are used by the CPU to access input and output devices.
  • In the microcontroller we have two types of I/O :
    1. General Purpose I/O (GPIO): The GPIO ports are used for interfacing devices such as LEDs, Switches, LCD, Keypad, and so on.
    2. Special purpose I/O: These I/O ports have designated function such as ADC (Analog-to-Digital), Timer, UART, PWM and so on.