Wakeup GPIO configuration in Serial LTE Modem

Hello,

We are working on a project having nRF9160 and STM32 microcontroller. We are using Serial LTE Modem firmware application for nRF9160.

We have gone through below link to configure wakeup pin related configuration -

https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/applications/serial_lte_modem/doc/slm_description.html

We want to use P0.17 pin for cellular modem to wakeup from sleep. We had configured UART2 for AT command transactions.

Our queries are as follows -

1. Can we configure P0.17 pin as wakeup just adding "CONFIG_SLM_WAKEUP_PIN = 17" ?

2. Is there any dependency of UART on wakeup pins as we are using UART2 ? 

3. Also, we want to wakeup another MCU when eDRX mode is used, so modifying "CONFIG_SLM_INDICATE_PIN = 18" will configure wakeup output?

Your quick response appreciated.

Thank you.

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