BMA222-SHUTL Bosch Sensortec, BMA222-SHUTL Datasheet - Page 41

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BMA222-SHUTL

Manufacturer Part Number
BMA222-SHUTL
Description
BMA222 DAUGHTERCARD FOR DEV KIT
Manufacturer
Bosch Sensortec
Series
-r
Datasheets

Specifications of BMA222-SHUTL

Sensor Type
Accelerometer, 3 Axis
Sensing Range
±2g, 4g, 8g, 16g
Interface
I²C, Serial, SPI
Sensitivity
64LSB/g, 32LSB/g, 16LSB/g, 8LSB/g
Voltage - Supply
-
Embedded
No
Utilized Ic / Part
BMA222
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
828-1026
5.7 g-range selection
Register (0x0F) contains the selection of the g-range. Proper settings for (0x0F) range are
´0011b´ (selects ±2g range), ´0101b´ (selects ±4g range), ´1000b´ (selects ±8g range), ´1100b´
(selects ±16g range). All other settings are irregular; if such a setting is used, ±2g range is
selected. Default value of (0x0F) range (after reset) is ´0011b´.
5.8 Bandwidths
Register (0x10) contains the selection of the bandwidth for filtered acceleration data. Settings
for (0x10) bw are ´00xxxb´ (bandwidth = 7.81 Hz), ´01000b´ (bandwidth = 7.81 Hz), ´01001b´
(bandwidth = 15.63 Hz), ´01010b´ (bandwidth = 31.25 Hz), ´01011b´ (bandwidth = 62.5 Hz),
´01100b´ (bandwidth = 125 Hz), ´01101b´ (bandwidth = 250 Hz), ´01110b´ (bandwidth = 500
Hz), ´01111b´ (bandwidth = 1000 Hz), ´1xxxxb´ (bandwidth = 1000 Hz). Default value of (0x10)
bw (after reset) is ´11111b´. It is recommended to actively use the range from ´01000b´ to
´01111b´ only in order to be compatible with future products.
5.9 Power modes
Register (0x11) contains the configuration of the power modes. (0x11) suspend = ´1´ (´0´) sets
(resets) suspend mode; default value of (0x11) suspend is ´0´.
(0x11) lowpower_en = ´1´ (´0´) sets (resets) low-power mode, default value of (0x11)
lowpower_en is ´0´.
The settings for (0x11) sleep_dur are ´0000b´ to ´0101b´ (sleep phase duration = 0.5 ms),
´0110b´ (sleep phase duration = 1 ms), ´0111b´ (sleep phase duration = 2 ms), ´1000b´ (sleep
phase duration = 4 ms), ´1001b´ (sleep phase duration = 6 ms), ´1010b´ (sleep phase duration =
10 ms), ´1011b´ (sleep phase duration = 25 ms), ´1100b´ (sleep phase duration = 50 ms),
´1101b´ (sleep phase duration = 100 ms), ´1110b´ (sleep phase duration = 500 ms), ´1111b´
(sleep phase duration = 1 s). Default value of (0x11) sleep_dur is ´0000b´.
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 35: g-range, register (0x0F)
Table 36: Bandwidths, register (0x10)
Table 37: Power modes, register (0x11)
Bit 7
reserved
Bit 7
reserved
suspend
Bit 7
lowpower
Bit 6
reserved
Bit 6
reserved
Bit 6
_en
reserved
Bit 5
Bit 5
reserved
reserved
Bit 5
Bit 4
bw <4>
Bit 4
reserved
dur<3>
sleep_
Bit 4
Data sheet
BMA222
Page 41
Bit 3
bw <3>
Bit 3
dur<2>
sleep_
range
Bit 3
<3>
bw <2>
Bit 2
Bit 2
dur<1>
sleep_
range
Bit 2
<2>
bw <1>
Bit 1
Bit 1
dur<0>
sleep_
range
Bit 1
<1>
Bosch Sensortec
07 March 2011
Bit 0
bw <0>
Bit 0
reserved
range
Bit 0
<0>

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