LSM330DLC Datasheet, PDF(27/66 Page) STMicroelectronics – iNEMO inertial module: 3D accelerometer and 3D gyroscope

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LSM330DLC Datasheet, PDF (27/66 Pages) STMicroelectronics – iNEMO inertial module: 3D accelerometer and 3D gyroscope

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LSM330DLC

Figure 10. Trigger stream mode

xi,yi,zi

x30

y30

z30

x31

y31

z31

Functionality

xi,yi,zi

yi0

x31

y31

z31

4.4.6

Stream Mode

FIFO Mode

Trigger event

AM07236v1

Retrieve data from FIFO

FIFO data is read through OUT_X_L_G, OUT_X_H_G, OUT_Y_L_G, OUT_Y_H_G and

OUT_Z_L_G, OUT_Z_H_G. When the FIFO is in Stream, Trigger or FIFO mode, a read

operation to the OUT_X_L_G, OUT_X_H_G, OUT_Y_L_G, OUT_Y_H_G or OUT_Z_L_G,

OUT_Z_H_G registers provides the data stored in the FIFO. Each time data is read from the

FIFO, the oldest pitch, roll and yaw data are placed in the OUT_X_L_G, OUT_X_H_G,

OUT_Y_L_G, OUT_Y_H_G and OUT_Z_L_G, OUT_Z_H_G registers and both single read

and read_burst (X,Y & Z with autoincremental address) operations can be used. When data

included in OUT_Z_H_G is read, the system again starts to read information from addr

OUT_X_L _G.

4.5

Level-sensitive / Edge-sensitive data enable

The LSM330DLC allows external trigger level recognition through the enabling of the

EXTRen and LVLen bits in the CTRL_REG2_G register. Two different modes can be used:

Level-sensitive or Edge-sensitive trigger.

Doc ID 022162 Rev 2

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