I've designed (and assembled) a PCB including an MPU-9250. However, in the designs I've accidentally connected the reserved pin (19) to ground. Possibly as a result of this, the entire I2C bus (Master uC and 2 slaves inc. 9250) on the board is not functioning at all. What effect would this connection have on the operation of the 9250? Could it cause the malfunction of the I2C bus? Below is the relevant part of the schematic.
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