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CC3351MOD: Handling of Unused COEX_REQ / COEX_PRIORITY / COEX_GRANT Pins on XCC3351MODENIAMOZR Module

Fenil Ladani
Prodigy 120 points
Part Number: CC3351MOD

Tool/software:

Hi,

I am designing a product using the XCC3351MODENIAMOZR module. In my application, I do not require coexistence interface signals (COEX_REQ, COEX_PRIORITY, COEX_GRANT).

Could you please provide your official recommendation on how to treat these pins if they remain unused:

  • Should these pins be left floating, or is it safer to terminate them?

  • If termination is recommended: to GND, VCC, via pull‑up, or pull‑down resistor — and what resistance value?

  • Are there any firmware or design precautions needed if these pins are not connected?

Any guidance you can share about avoiding unexpected behavior would be greatly appreciated.

Thank you in advance for your help!

Fenil