MC6470 Datasheet, PDF (21/64 Pages) List of Unclassifed Manufacturers – 9-Axis Sensor

MC6470 9-Axis Sensor
Preliminary Datasheet
5 MAGNETOMETER SUBSECTION
5.1 Magnetometer Operational Modes
The various operational modes of the magnetometer are shown below.
Initialization
Power on reset is performed by turning on the power.
All circuits and registers are set to default and the mode is
set to stand-by mode automatically by POR.
Software reset can be performed by writing to a control register.
All registers is reloaded from OTP and the internal compensation
table is reloaded.
Self-Test
Self-test confirms the operation of the sensor by register command.
Functional Modes
The sensor has stand-by mode and active mode for power control.
There are two states in active mode.
Off mode
The sensor is not active when VDDIO or VDDM is disabled.
Stand-by Mode
Low power state. Stand-by mode can access I2C registers (read /
write).
Active Mode
Change from stand-by to active mode by register command
to control register.
Force State
Start to measure and output data by register command.
Force state is default.
Normal State
Measure sampled magnetometer data by using an internal timer.
Data Ready Function
Occurs when new measured results are updated.
The INTM pin can be used to indicate new sample data is available.
Offset Calibration Function
Offset Drift Function
Temperature Measurement
Function
Sensor offset can be canceled by using internal DAC circuit and
digital compensation function.
When magnetic field strength drifts, the output data values can be
compensated by writing to the offset value registers.
Retrieve temperature data from internal temperature sensor.
Temperature data is used for internal compensation of output data.
Temperature Compensation
Function
Compensate gain, via digital circuitry, by temperature measurement
results.
mCube Proprietary
APS-048-0033v1.5
© 2016 mCube Inc. All rights reserved
21 / 64