LSM330 Datasheet, PDF(26/75 Page) STMicroelectronics

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LSM330 Datasheet, PDF (26/75 Pages) STMicroelectronics – Power-down and sleep modes

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Functionality

LSM330

4.3.4

Stream mode

In Stream mode, data from yaw, pitch and roll measurements are stored in the FIFO. A

watermark interrupt can be enabled and set as in the FIFO mode. FIFO continues filling until

it is full (32 slots of 16-bit data for yaw, pitch and roll). When full, the FIFO discards the older

data as the new arrive. Programmable watermark level events can be enabled to generate

dedicated interrupts on the DRDY_G/INT2_G pin (configuration through CTRL_REG3_G

(22h)). Stream mode is represented in the following figure.

Figure 9. Stream mode

xi,y i,z i

x 30

y 30

z 30

x 31

y 31

z 31

4.3.5

AM07234v1

Bypass-to-Stream mode

In Bypass-to-Stream mode, the FIFO starts operating in Bypass mode and once a trigger

event occurs (related to the INT1_CFG_G (30h) register events) the FIFO starts operating in

Stream mode. Refer to the following figure.

xi,yi,z i

Empty

Figure 10. Bypass-to-stream mode

x 31

y 31

z 31

xi,y i,z i

x 30

y 30

z 30

x 31

y 31

z 31

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Bypass mode

Trigger event

Stream mode

DocID023426 Rev 3

AM07235v1

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