AN2381 datasheet(28/47 Pages) STMICROELECTRONICS

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Registers Description

AN2381

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In Big Endian Mode (bit BLE in CTRL_REG2 set to ‘1’) the content of this register becomes

the Most Significant part of acceleration data and depends by bit DAS in CTRL_REG2

5.3.6

OUTY_H (2Bh)

Y-axis output register, most significant bits.

When reading the register in “12 bit right justified” mode (bit DAS in A_IF_CTRL2 reg set to

0) the most significant bits (7:4) are replaced with YD11 (i.e. YD15-YD12=YD11, YD11,

YD11, YD11).

In Big Endian Mode (bit BLE in CTRL_REG2 set to ‘1’) the content of this register becomes

the Less Significant part of acceleration data.

5.3.7

OUTZ_L (2Ch)

Z-axis output register, less significant bits.

In Big Endian Mode (bit BLE in CTRL_REG2 set to ‘1’) the content of this register becomes

the Most Significant part of acceleration data and depends by bit DAS in CTRL_REG2

5.3.8

OUTZ_H (2Dh)

Z-axis output register, most significant bits.

When reading the register in “12 bit right justified” mode (bit DAS in A_IF_CTRL2 reg set to

0) the most significant bits (7:4) are replaced with ZD11 (i.e. ZD15-ZD12=ZD11, ZD11,

ZD11, ZD11).

In Big Endian Mode (bit BLE in CTRL_REG2 set to ‘1’) the content of this register becomes

the Less Significant part of acceleration data.

YD15

YD14

YD13

YD12

YD11

YD10

YD9

YD8

YD15, YD8

Y axis acceleration data MSb (bit BLE in CTRL_REG2 register set to ‘0’)

ZD7

ZD6

ZD5

ZD4

ZD3

ZD2

ZD1

ZD0

ZD11, ZD8

Z axis acceleration data LSb (bit BLE in CTRL_REG2 register set to ‘0’)

ZD15

ZD14

ZD13

ZD12

ZD11

ZD10

ZD9

ZD8

ZD15, ZD8

Z axis acceleration data MSb (bit BLE in CTRL_REG2 register set to ‘0’)

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