BMA253
Data sheet
Page 52
Register 0x04 (ACCD_Y_LSB)
The register contains the least-significant bits of the Y-channel acceleration readout value.
When reading out Y-channel acceleration values, data consistency is guaranteed if the
ACCD_Y_LSB is read out before the ACCD_Y_MSB and shadow_dis=’0’. In this case, after the
ACCD_Y_LSB has been read, the value in the ACCD_Y_MSB register is locked until the
ACCD_Y_MSB has been read. This condition is inherently fulfilled if a burst-mode read access
is performed. Acceleration data may be read from register ACCD_Y_LSB at any time except
during power-up and in DEEP_SUSPEND mode.
Name
Bit
0x04
7
ACCD_Y_LSB
6
5
4
Read/Write
R
R
R
R
Reset
n/a
n/a
n/a
n/a
Value
Content
acc_y_lsb<3:0>
Bit
3
2
1
0
Read/Write
Reset
R
n/a
R
n/a
R
n/a
R
n/a
Value
Content
undefined
undefined
undefined
new_data_y
acc_y_lsb<3:0>: Least significant 4 bits of acceleration read-back value; (two’s-complement
format)
undefined:
random data; to be ignored
new_data_y:
‚0’: acceleration value has not been updated since it has been read out last
‚1’: acceleration value has been updated since it has been read out last
BST-BMA253-DS000-01 | Revision 1.0 | August 2015
Bosch Sensortec
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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.
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