Contents

AN4602

Contents

1

Registers.......................................................................................... 5

2

General configuration ..................................................................... 7

2.1

Full scale ........................................................................................... 7

2.2

Operating modes............................................................................... 7

2.2.1

Output data rate.................................................................................. 8

2.3

Measurement mode .......................................................................... 8

2.3.1

Turn-on time ..................................................................................... 10

2.3.2

Switching modes .............................................................................. 10

2.4

Current consumption....................................................................... 11

3

Reading output data...................................................................... 12

3.1

Startup sequence ............................................................................ 12

3.2

Reading magnetometer data........................................................... 12

3.2.1

Using the data-ready (DRDY) signal ................................................ 12

3.2.2

Using the STATUS_REG register .................................................... 13

3.2.3

Using the block data update (BDU) feature ..................................... 14

3.2.4

FAST_READ option.......................................................................... 14

3.3

Understanding magnetic data ......................................................... 14

3.3.1

Big-little endian selection.................................................................. 14

4

Interrupt generation ...................................................................... 16

4.1

Interrupt configuration ..................................................................... 16

4.2

Interrupt threshold ........................................................................... 17

4.3

Interrupt source register .................................................................. 17

5

Self-test .......................................................................................... 19

6

Temperature sensor and temperature compensation ................ 20

7

Offset management ....................................................................... 21

8

Revision history ............................................................................ 22

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