BMA250 Bosch Sensortec, BMA250 Datasheet - Page 40

3-AXIS ACCELEROMETER DIGITAL I/F

BMA250

Manufacturer Part Number
BMA250
Description
3-AXIS ACCELEROMETER DIGITAL I/F
Manufacturer
Bosch Sensortec
Series
-r
Datasheets

Specifications of BMA250

Featured Product
BMA250 - Digital, Triaxial Acceleration Sensor
Axis
X, Y, Z
Acceleration Range
±2g, 4g, 8g, 16g
Sensitivity
256LSB/g, 128LSB/g, 64LSB/g, 16LSB/g
Voltage - Supply
1.62 V ~ 3.6 V
Output Type
I²C™, SPI™
Bandwidth
8Hz ~ 1kHz
Interface
I²C, SPI
Mounting Type
Surface Mount
Package / Case
12-VQFN
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
For Use With
828-1024 - BMA250 DAUGHTERCARD FOR DEV KIT
Other names
828-1023-2
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Register (0x0A) contains the status of the new data interrupt.
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.
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.
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.
Table 32: New data status, register (0x0A)
Table 33: Tap and slope interrupts status, register (0x0B)
Table 34: Flat and orientation Status, register (0x0C)
(0x0A) Bit
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
(0x0B) Bit
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
(0x0C) Bit
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Name
data_int
- reserved -
- reserved -
- reserved -
- reserved -
- reserved -
- reserved -
- reserved -
Name
tap_sign
tap_first_z
tap_first_y
tap_first_x
slope_sign
slope_first_z
slope_first_y
slope_first_x
Name
flat
orient <2>
orient <1>
orient <0>
high_sign
high_first_z
high_first_y
high_first_x
Description
Description
Description
New data interrupt status
reserved
reserved
reserved
reserved
reserved
reserved
reserved
Sign of 1
´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
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
st
Data sheet
BMA250
tap that triggered the interrupt (´0´=positive,
Bosch Sensortec
03 March 2011

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