Datasheet

BMM150 Geomagnetic Sensor

Page 25

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 (0x47) contains the MSB part of z-axis magnetic field data.

Table 11: MSB part of z-axis magnetic field, register (0x47)

(0x47) Bit

Name

Description

Bit 7

DATAZ_msb <14>

Bit 14 of y-axis magnetic field data = z MSB

Bit 6

DATAZ_msb <13>

Bit 13 of y-axis magnetic field data

Bit 5

DATAZ_msb <12>

Bit 12 of y-axis magnetic field data

Bit 4

DATAZ_msb <11>

Bit 11 of y-axis magnetic field data

Bit 3

DATAZ_msb <10>

Bit 10 of y-axis magnetic field data

Bit 2

DATAZ_msb <9>

Bit 9 of y-axis magnetic field data

Bit 1

DATAZ_msb <8>

Bit 8 of y-axis magnetic field data

Bit 0

DATAZ_msb <7>

Bit 7 of y-axis magnetic field data

Register (0x48) contains the LSB part of hall resistance and the Data Ready (DRDY) status bit.

Table 12: LSB part of hall resistance, register (0x48)

(0x48) Bit

Name

Description

Bit 7

RHALL_lsb <5>

Bit 5 of hall resistance

Bit 6

RHALL_lsb <4>

Bit 4 of hall resistance

Bit 5

RHALL_lsb <3>

Bit 3 of hall resistance

Bit 4

RHALL_lsb <2>

Bit 2 of hall resistance

Bit 3

RHALL_lsb <1>

Bit 1 of hall resistance

Bit 2

RHALL_lsb <0>

Bit 0 of hall resistance = RHALL LSB

Bit 1

-

(fixed to 0)

Bit 0

Data Ready Status

Data ready (DRDY) status bit

Register (0x49) contains the MSB part of hall resistance.

Table 13: MSB part of hall resistance, register (0x49)

(0x49) Bit

Name

Description

Bit 7

RHALL_msb <13>

Bit 13 of hall resistance = RHALL MSB

Bit 6

RHALL_msb <12>

Bit 12 of hall resistance

Bit 5

RHALL_msb <11>

Bit 11 of hall resistance

Bit 4

RHALL_msb <10>

Bit 10 of hall resistance

Bit 3

RHALL_msb <9>

Bit 9 of hall resistance

Bit 2

RHALL_msb <8>

Bit 8 of hall resistance

Bit 1

RHALL_msb <7>

Bit 7 of hall resistance

Bit 0

RHALL_msb <6>

Bit 6 of hall resistance