TAS5548: FW examples

Hi team,

The D/S of TAS5548 shows the digital structure, communication protocol timing diagrams, registers, etc, however it does not explain about programming.
My customer has a subwoofer application with 2x speakers within the enclosure and are not utilizing this IC for all the PWM channels which should simplify things.

Do we have any SDK/examples available? I only see some SPICE models, didn't find anything. Any reference for implementing a 2-way crossover would be helpful, like 24dB Linkwitz-Riley or equivalent, maybe with Biquad filter functions?

Thanks,

Connie