LSM330D datasheet(29/66 Pages) STMICROELECTRONICS

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LSM330D

Functionality

Doc ID 022562 Rev 2

29/66

Figure 11.

Level-sensitive trigger stamping (LVLen = 1; EXTRen = 0)

4.4.1

Level-sensitive trigger stamping

Once enabled, DEN level replaces the LSb of the X, Y or Z axes, configurable through the

Xen, Yen, Zen bits in the CTRL_REG1_G register. Data is stored in the FIFO with the

internally-selected ODR.

4.4.2

Edge-sensitive trigger

Once enabled by setting EXTRen = 1, FIFO is filled with the pitch, roll and yaw data on the

rising edge of the DEN input signal. When selected ODR is 800 Hz, the maximum DEN

sample frequency is fDEN = 1/TDEN = 400 Hz.

xi(15-1)

xi,yi,zi

yi(15-0)

Zi(15-0)

xi-N+1

(15-1)

yi-N+1

(15-0)

zi-N+1

(15-0)

xi(15-0)

xi,yi,zi

yi(15-1)

Zi(15-0)

xi(15-0)

xi,yi,zi

yi(15-0)

Zi(15-1)

xi-N+1

(15-0)

yi-N+1

(15-0)

zi-N+1

(15-1)

xi-N+1

yi-N+1

Zi-N+1

(15-0)

(15-1)

(15-0)

Level-sensitive

Trigger enabled

on X-Axis

Level-sensitive

Trigger enabled

on Y-axis

Level-sensitive

Trigger enabled

on Z-axis

Xen=1,Yen=Zen=0

Yen=1, Xen=Zen=0

Zen=1, Xen=Yen=0

AM10162V1

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