DRV10975: SPEED CONTROL of DRV10975

Part Number:DRV10975

Dear, All

Customers are evaluating using DRV10975.
They are doing SPEED CONTROL using the I2C command, but sometimes the motor stopped.
Therefore, when they observed the command, it turned out that waiting time may occur in accessing 2 byte and 3 byte when writing command to SpeedCtrl1.

Yellow waveform SDA, Blue waveform SCK

Is this the possibility of the phenomenon that the motor stops?
They write commands to SpeedCtrl2 as written on the data sheet, and then write to SpeedCtrl1.

Also, if it is due to the wait time of access, please tell me from what wait time the phenomenon may occur.

Thanks, Masami M.