Can incoming cellular call wake up nRF9160?

[LongShadow]

Hi, does the nRF9160's LTE modem support waking-up the application processor using an incoming call?

The OPS indicates that a DETECT signal can be input to a GPIO pin for wake-up (as well as asserting RESET or initiating a debug session).

Is there an easy way to generate a DETECT signal using the LTE antenna input?  Or can an internal signal from the modem core be configured to wake up the application core when the modem receives an incoming cellular call?

Thank you!

[Øyvind]

Hello,

Just to clarify, the nRF9160 operates in LTE-M or NB-IoT, which are both designed for low power applications requiring medium throughput and is not capable of receiving calls. They are able to send and receive data packets as standard LTE devices. More information about the two supported networks here.

From the Power Management Unit chapter in the OPS

 According to the System OFF Mode section:
"Before entering System OFF mode, the user must make sure that all on-going EasyDMA transactions have completed. This can be accomplished by making sure that EasyDMA enabled peripherals have stopped and END events from them received. The LTE modem also needs to be stopped, by issuing a command through the modem API, before entering System OFF mode. Once the command is issued, one should wait for the modem to respond that it actually has stopped, as there may be a delay until the modem is disconnected from the network."

The best alternative is to use System ON Mode - Low Power:
"If any application or modem activity occurs, the system leaves the System ON IDLE state. Once a given activity in a function block is completed, the system automatically returns to IDLE, retaining its configuration."

I hope I understood your question and you got the answer you were looking for, let me know if anything is unclear.

Best regards,
Øyvind

[LongShadow]

Ah, yes I understand now.  Thank you, Øyvind!