That FPU matters if you are running sensor fusion, motor-control observers, or any filter that would otherwise eat cycles in software emulation.
Connectivity and I/O — CAN, SPI, I²C, and 120 GPIOs
The 120 I/O lines in a 157-VFBGA (9×9 mm) package mean you can route a fair amount of parallel bus or discrete sensor wiring without an external port expander.
