With initialization complete, the LCD can be enabled. A simple list of commands that manipulate the display, or Display List, is written to the FT800. This consists of setting the background color to black, clearing the buffers and telling the FT800 to start displaying the background. Although the first display list is now programmed into the FT800, three more registers need to be configured before the LCD can show any images. REG_PWM_DUTY register sets the LCD brightness. REG_GPIO, bit 7, enables the display. Finally, REG_PCLK gets changed from zero to the divisor for the pixel clock frequency. At this time, the LCD will actively show a black background. This first display list continues to be output until another is sent to the FT800.