User Manual

MPU-9250 Register Map and Descriptions
Document Number: RM-MPU-9250A-00
Revision: 1.4
Release Date: 9/9/2013
4.10 Register 31 – Wake-on Motion Threshold
Serial IF: R/W
Reset value: 0x00
BIT
NAME
FUNCTION
[7:0]
WOM_Threshold
This register holds the threshold value for the Wake on Motion Interrupt for
accel x/y/z axes. LSB = 4mg. Range is 0mg to 1020mg.
For more details on how to configure the Wake-on-Motion interrupt, please refer to section 5 in the
MPU-9250 Product Specification document.
4.11 Register 35 – FIFO Enable
Serial IF: R/W
Reset value: 0x00
BIT
NAME
FUNCTION
[7]
TEMP_OUT
1 – Write TEMP_OUT_H and TEMP_OUT_L to the FIFO at the sample rate;
If enabled, buffering of data occurs even if data path is in standby.
0 – function is disabled
[6]
GYRO_XOUT
1 – Write GYRO_XOUT_H and GYRO_XOUT_L to the FIFO at the sample
rate; If enabled, buffering of data occurs even if data path is in standby.
0 – function is disabled
[5]
GYRO_YOUT
1 – Write GYRO_YOUT_H and GYRO_YOUT_L to the FIFO at the sample
rate; If enabled, buffering of data occurs even if data path is in standby.
0 – function is disabled
NOTE: Enabling any one of the bits corresponding to the Gyros or Temp data paths,
data is buffered into the FIFO even though that data path is not enabled.
[4]
GYRO_ZOUT
1 – Write GYRO_ZOUT_H and GYRO_ZOUT_L to the FIFO at the sample
rate; If enabled, buffering of data occurs even if data path is in standby.
0 – function is disabled
[3]
ACCEL
1 – write ACCEL_XOUT_H, ACCEL_XOUT_L, ACCEL_YOUT_H,
ACCEL_YOUT_L, ACCEL_ZOUT_H, and ACCEL_ZOUT_L to the FIFO at
the sample rate;
0 – function is disabled
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