Datasheet

Datasheet
BMM150 Geomagnetic Sensor
Page 30
BST-BMM150-DS001-01 | Revision 1.0 | April 2013 Bosch Sensortec
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Note: Specifications within this document are subject to change without notice.
Register (0x50) contains the High-Threshold interrupt threshold setting. (Also refer to chapter 0
for the details of magnetometer interrupt operation and the threshold setting).
Table 22: High-threshold interrupt threshold setting control register (0x4F)
(0x50) Bit
Name
Description
Bit 7
HighThreshold <7>
Bit 7 of High-Threshold interrupt threshold setting
Bit 6
HighThreshold <6>
Bit 6 of High-Threshold interrupt threshold setting
Bit 5
HighThreshold <5>
Bit 5 of High-Threshold interrupt threshold setting
Bit 4
HighThreshold <4>
Bit 4 of High-Threshold interrupt threshold setting
Bit 3
HighThreshold <3>
Bit 3 of High-Threshold interrupt threshold setting
Bit 2
HighThreshold <2>
Bit 2 of High-Threshold interrupt threshold setting
Bit 1
HighThreshold <1>
Bit 1 of High-Threshold interrupt threshold setting
Bit 0
HighThreshold <0>
Bit 0 of High-Threshold interrupt threshold setting
5.8 Number of repetitions control registers
Register (0x51) contains the number of repetitions for x/y-axis. Table 24 below shows the
number of repetitions resulting out of the register configuration. The performed number of
repetitions nXY can be calculated from unsigned register value as nXY = 1+2xREPXY as shown
below, where b7-b0 are the bits 7 to 0 of register 0x51:
)(
)(
REPXY
bbbbbbbbnXY


21
202122232425262721
01234567
Table 23: X/y-axis repetitions control register (0x51)
(0x51) Bit
Name
Description
Bit 7
REPXY <7>
Bit 7 of number of repetitions (valid for XY)
Bit 6
REPXY <6>
Bit 6 of number of repetitions (valid for XY)
Bit 5
REPXY <5>
Bit 5 of number of repetitions (valid for XY)
Bit 4
REPXY <4>
Bit 4 of number of repetitions (valid for XY)
Bit 3
REPXY <3>
Bit 3 of number of repetitions (valid for XY)
Bit 2
REPXY <2>
Bit 2 of number of repetitions (valid for XY)
Bit 1
REPXY <1>
Bit 1 of number of repetitions (valid for XY)
Bit 0
REPXY <0>
Bit 0 of number of repetitions (valid for XY)
Table 24: Numbers of repetition for x/y-axis depending on value of register (0x51)
(0x51)
register
value
(binary)
(0x51) register
value
(hex)
Number of repetitions for x- and y-axis each
00000000b
0x00h
1
00000001b
0x01h
3
00000010b
0x02h
5
00000011b
0x03h
7
…
…
11111111b
0xFFh
511