I have added more examples for the LPC804. There is another post for a more complex state machine: BMS, Binary Counter, Debounce and LPC804 PLU | drolliblog.
Another application for the PLU could be voltage conversion: I have created and discussed a small step up (boost) converter which acts as a LED current driver: NXP LPC804 PLU Step Up Converter | drolliblog.
Inspired by the NXP video on the PLU subsystem, I have created one more example for driving WS2812b RGB LEDs. My approach does not require the CTIMER subsystem. Instead the timing and waveform generation is done by the PLU only: NXP LPC804 PLU WS2812b Controller | drolliblog.
Oliver