3-AXIS ACCELEROMETER DIGITAL I/F

BMA250

Manufacturer Part NumberBMA250
Description3-AXIS ACCELEROMETER DIGITAL I/F
ManufacturerBosch Sensortec
Series-
BMA250 datasheets
 


Specifications of BMA250

Featured ProductBMA250 - Digital, Triaxial Acceleration SensorAxisX, Y, Z
Acceleration Range±2g, 4g, 8g, 16gSensitivity256LSB/g, 128LSB/g, 64LSB/g, 16LSB/g
Voltage - Supply1.62 V ~ 3.6 VOutput TypeI²C™, SPI™
Bandwidth8Hz ~ 1kHzInterfaceI²C, SPI
Mounting TypeSurface MountPackage / Case12-VQFN
Lead Free Status / Rohs StatusLead free / RoHS CompliantFor Use With828-1024 - BMA250 DAUGHTERCARD FOR DEV KIT
Other names828-1023-2  
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Page 40/74

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Register (0x0A) contains the status of the new data interrupt.
Table 32: New data status, register (0x0A)
(0x0A) Bit
Name
Bit 7
data_int
Bit 6
- reserved -
Bit 5
- reserved -
Bit 4
- reserved -
Bit 3
- reserved -
Bit 2
- reserved -
Bit 1
- reserved -
Bit 0
- reserved -
Register (0x0B) contains the sign and triggering axis information for the tap and slope
interrupts. Here tap interrupt comprises both single and double tap interrupt.
Table 33: Tap and slope interrupts status, register (0x0B)
(0x0B) Bit
Name
Bit 7
tap_sign
Bit 6
tap_first_z
Bit 5
tap_first_y
Bit 4
tap_first_x
Bit 3
slope_sign
Bit 2
slope_first_z
Bit 1
slope_first_y
Bit 0
slope_first_x
Register (0x0C) contains the flat and orientation status, and the sign and triggering axis
information for the high-g interrupt. Registers (0x0D) and (0x0E) are reserved.
Table 34: Flat and orientation Status, register (0x0C)
(0x0C) Bit
Name
Bit 7
flat
Bit 6
orient <2>
Bit 5
orient <1>
Bit 4
orient <0>
Bit 3
high_sign
Bit 2
high_first_z
Bit 1
high_first_y
Bit 0
high_first_x
Registers (0x0D) and (0x0E) are reserved.
Rev. 1.0
© Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such
as copying and passing on to 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.
BMA250
Data sheet
Description
New data interrupt status
reserved
reserved
reserved
reserved
reserved
reserved
reserved
Description
st
Sign of 1
tap that triggered the interrupt (´0´=positive,
´1´=negative)
´1´ indicates that z-axis is triggering axis of tap interrupt
´1´ indicates that y-axis is triggering axis of tap interrupt
´1´ indicates that x-axis is triggering axis of tap interrupt
Sign of slope that triggered the interrupt (´0´=positive,
´1´=negative)
´1´ indicates that z-axis is triggering axis of slope interrupt
´1´ indicates that y-axis is triggering axis of slope interrupt
´1´ indicates that x-axis is triggering axis of slope interrupt
Description
flat detection (´1´ if flat condition is fulfilled, ´0´ otherwise)
orientation value of z-axis (´0´ if upward looking, ´1´ if
downward looking)
orientation value of x-y plane (´00´=portrait upright,
´01´=portrait upside-down, ´10´=landscape left,
´11´=landscape right)
Sign of slope that triggered the interrupt (´0´=positive,
´1´=negative)
´1´ indicates that z-axis is triggering axis of high-g interrupt
´1´ indicates that y-axis is triggering axis of high-g interrupt
´1´ indicates that x-axis is triggering axis of high-g interrupt
Page 40 / not for publishing
Bosch Sensortec
03 March 2011