Every three consecutive output channels are assigned to their respective intensity-control register (LEDx_BRIGHTNESS). For example, OUT0, OUT1, and OUT2 are assigned to LED0_BRIGHTNESS, so it is recommended to connect the RGB LEDs in the sequence as shown in Table 1. The LP50xx device allows 256-step intensity control for each RGB LED module, which helps achieve a smooth dimming effect.
Keeping FFh (default value) in the LED0_BRIGHTNESS register results in 100% dimming duty cycle. With this setting, users can just configure the color mixing register by channel to achieve the target dimming effect in a single-color LED application.