Hi, I've been using the MPU-9250 for a product I'm developing. I'd like to use the ICM-20948 when it's available since it's pin-compatible with the MPU-9250.
However, looking at the datasheets for the two, there are some discrepancies with the "reserved pins" (pins 1, 19 and 20).
For MPU-9250 it says to connect pin 1 to VDDIO, pin 19 is DNC and pin 20 should connect to GND.
For ICM-20948 it says pin 1 is DNC and pins 19 and 20 should connect to GND.
Does anyone know what the purpose of these reserved pins are? Would the ICM-20948 work with the MPU-9250 configuration (pin 1 connected to VDDIO and pin 19 floating?).