The application code running inside the microcontroller decides which data should be stored in the frame buffer and as the frame buffer changes, the display content also changes. The microcontroller must have sufficient processing power (MIPS) to render the required shapes in the frame buffer. The choice depends on:

• Application requirements

  • Processing power required

  • Frame buffer

  • Additional frame buffer for 2D image processing

  • If other MCU features are required like connectivity, capacitive touch and so on

• How a customer wants to drive the display module