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LSM303DLH View Datasheet(PDF) - STMicroelectronics

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LSM303DLH
Registers description
The D6 - D0 bits set the minimum duration of the Interrupt 2 event to be recognized.
Duration time steps and maximum values depend on the ODR chosen.
9.2
Magnetic field sensing register description
The magnetometer core contains a set of registers which are used to control its behavior
and to retrieve magnetic field data. The register’s address, composed of 8 bits, is used to
identify them and to read/write the data through the serial interface.
For magnetic field sensing interface, the default (factory) 7-bit slave address is 00111100b
(0x3C) for write operations, or 00111101b (0x3D) for read operations.
te Product(s) 9.2.1
CRA_REG_M (00h)
The configuration register A is used to configure the device for setting the data output rate
and measurement configuration. CRA0 through CRA7 indicate bit locations, with CRA
denoting the bits that are in the configuration register. CRA7 denotes the first bit of the data
stream. The number in parentheses indicates the default value of that bit.
Table 56. CRA_REG_M register
0
0
0
DO2
DO1
DO0
MS1
MS0
bsole Table 57. CRA_REG_M description
O CRA7 to CRA5 These bits must be cleared for correct operation.
t(s) - DO2 to DO0
Data output rate bits. These bits set the rate at which data is written to all three data
output registers
duc MS1 to MS0
Measurement configuration bits. These bits define the measurement flow of the
device, specifically whether or not to incorporate an applied bias to the sensor into
the measurement
te Pro Table 58.
le DO2
so 0
Ob 0
CRA_REG M description
DO1
DO0
0
0
0
1
Minimum data output rate (Hz)
0.75
1.5
0
1
0
3.0
0
1
1
7.5
1
0
0
15
1
0
1
30
1
1
0
75
1
1
1
Not used
Doc ID 16941 Rev 1
39/47
 

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