On one hand, licensing requirements and regulation often mean that modems are locked down in terms of firmware updates, reference documentation, source, and capabilities. This often translates into a larger "black box" area, and one embedded inside your SoC instead of physically separate and connected over a serial bus.
On the other, on-chip modems often (not sure about those Nordics) have DMA.
On one hand, licensing requirements and regulation often mean that modems are locked down in terms of firmware updates, reference documentation, source, and capabilities. This often translates into a larger "black box" area, and one embedded inside your SoC instead of physically separate and connected over a serial bus.
On the other, on-chip modems often (not sure about those Nordics) have DMA.
The combination of those two is scary.