Multicast Filters
MRF24W has 2 hardware multicast filters.
If your design requires more than 2 multicast filters, there is an option to extend the multicast filters to a maximum of 16 software-based multicast filters.
To use this maximum of 16 multicast filters, the macro
#define ENABLE_SOFTWARE_MULTICAST_FILTER
needs to be enabled. The MRF24W FW will be notified to use software to run the filters instead of hardware. The downside of this software-based multicast filter option is the performance could possibly be degraded in the case scenario when there are so many multicast packets on the air.