LSM303DLH datasheet(40/47 Pages) STMICROELECTRONICS

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Registers description

LSM303DLH

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Doc ID 16941 Rev 1

9.2.2

CRB_REG_M (01h)

The configuration register B for setting the device gain. CRB0 through CRB7 indicate bit

locations, with

CRB denoting the bits that are in the configuration register. CRB7 denotes

the first bit of the data stream. The number in parentheses indicates the default value of that

bit.

9.2.3

MR_REG_M (02h)

The mode register is an 8-bit register from which data can be read or to which data can be

written. This register is used to select the operating mode of the device. MR0 through MR7

indicate bit locations, with

MR denoting the bits that are in the mode register. MR7 denotes

Table 59.

CRA_REG_M description

MS1

MS0

Magnetic sensor operating mode

Normal measurement configuration (default). In normal measurement

configuration the device follows normal measurement flow.

Positive bias configuration.

Negative bias configuration.

This configuration is not used

Table 60.

CRA_REG register

GN2

GN1

GN0

Table 61.

CRA_REG description

CRB7 to CRB5

Gain configuration bits. These bits configure the gain for the device. The gain

configuration is common for all channels

CRB7 to CRB5 This bit must be cleared for correct operation

Table 62.

Gain setting

GN2

GN1

GN0

Sensor input

field range

[Gauss]

Gain X/Y and

[LSB/Gauss]

Gain Z

[LSB/Gauss]

Output range

001

±1.3

1055

950

0xF800–0x07FF

(-2048–2047)

±1.9

795

710

±2.5

635

570

±4.0

430

385

±4.7

375

335

±5.6

320

285

±8.1

230

205

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