Datasheet

BMM150 Geomagnetic Sensor

Page 24

BST-BMM150-DS001-01 | Revision 1.0 | April 2013

Bosch Sensortec

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third parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany.

Note: Specifications within this document are subject to change without notice.

Register (0x44) contains the LSB part of y-axis magnetic field data and the self-test result flag

for the y-axis.

Table 8: LSB part of y-axis magnetic field, register (0x44)

(0x44) Bit

Name

Description

Bit 7

DATAY_lsb <4>

Bit 4 of y-axis magnetic field data

Bit 6

DATAY_lsb <3>

Bit 3 of y-axis magnetic field data

Bit 5

DATAY_lsb <2>

Bit 2 of y-axis magnetic field data

Bit 4

DATAY_lsb <1>

Bit 1 of y-axis magnetic field data

Bit 3

DATAY_lsb <0>

Bit 0 of y-axis magnetic field data = y LSB

Bit 2

-

(fixed to 0)

Bit 1

-

(fixed to 0)

Bit 0

SelfTestY

Self-test result flag for y-axis, default is “1”

Register (0x45) contains the MSB part of y-axis magnetic field data.

Table 9: MSB part of y-axis magnetic field, register (0x45)

(0x45) Bit

Name

Description

Bit 7

DATAY_msb <12>

Bit 12 of y-axis magnetic field data = y MSB

Bit 6

DATAY_msb <11>

Bit 11 of y-axis magnetic field data

Bit 5

DATAY_msb <10>

Bit 10 of y-axis magnetic field data

Bit 4

DATAY_msb <9>

Bit 9 of y-axis magnetic field data

Bit 3

DATAY_msb <8>

Bit 8 of y-axis magnetic field data

Bit 2

DATAY_msb <7>

Bit 7 of y-axis magnetic field data

Bit 1

DATAY_msb <6>

Bit 6 of y-axis magnetic field data

Bit 0

DATAY_msb <5>

Bit 5 of y-axis magnetic field data

Register (0x46) contains the LSB part of z-axis magnetic field data and the self-test result flag

for the z-axis.

Table 10: LSB part of z-axis magnetic field, register (0x46)

(0x46) Bit

Name

Description

Bit 7

DATAZ_lsb <6>

Bit 6 of z-axis magnetic field data

Bit 6

DATAZ_lsb <5>

Bit 5 of z-axis magnetic field data

Bit 5

DATAZ_lsb <4>

Bit 4 of z-axis magnetic field data

Bit 4

DATAZ_lsb <3>

Bit 3 of z-axis magnetic field data

Bit 3

DATAZ_lsb <2>

Bit 2 of z-axis magnetic field data

Bit 2

DATAZ_lsb <1>

Bit 1 of z-axis magnetic field data

Bit 1

DATAZ_lsb <0>

Bit 0 of z-axis magnetic field data = z LSB

Bit 0

SelfTestZ

Self-test result flag for z-axis, default is “1”