A3G4250D 데이터 시트보기 (PDF) - STMicroelectronics

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A3G4250D

MEMS motion sensor: 3-axis digital output gyroscope

STMicroelectronics 

A3G4250D

Main digital blocks

Figure 7. Bypass mode

XIYIZI

X

YI

Z

EMPTY

X

Y

Z

X

Y

Z

X

Y

Z

3.2.2

!-V

FIFO mode

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

watermark interrupt can be enabled (I2_WMK bit in CTRL_REG3), which is triggered when

the FIFO is filled to the level specified in the WTM 4: 0 bits of FIFO_CTRL_REG. The FIFO

continues filling until it is full (32 slots of 16-bit data for yaw, pitch, and roll). When full, the

FIFO stops collecting data from the input channels. To restart data collection, it is necessary

to write FIFO_CTRL_REG back to bypass mode.

FIFO mode is represented in Figure 8.

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