Errata nRF9160 - I2S: Excessive power consumption after using STOP task

This anomaly applies to IC Rev. Engineering A, build codes SICA-BAA.

Symptoms

Current consumption too high (~900 µA) after using the STOP task.

I2S was running and was stopped by triggering the STOP task.

Current consumption higher than specified.

Apply the below code after the STOP task. For secure mode:

 
*((volatile uint32_t *)0x50028038) = 1; 
*((volatile uint32_t *)0x5002803C) = 1;

For non-secure mode:

 
*((volatile uint32_t *)0x40028038) = 1; 
*((volatile uint32_t *)0x4002803C) = 1;