BMA253
Data sheet
Page 50
Register 0x00 (BGW_CHIPID)
The register contains the chip identification code.
Name
Bit
0x00
7
BGW_CHIPID
6
5
4
Read/Write
R
R
R
R
Reset
n/a
n/a
n/a
n/a
Value
Content
chip_id<7:4>
Bit
3
2
1
0
Read/Write
R
R
R
R
Reset
n/a
n/a
n/a
n/a
Value
Content
chip_id<3:0>
chip_id<7:0>:
Fixed value b’1111’1010
Register 0x02 (ACCD_X_LSB)
The register contains the least-significant bits of the X-channel acceleration readout value.
When reading out X-channel acceleration values, data consistency is guaranteed if the
ACCD_X_LSB is read out before the ACCD_X_MSB and shadow_dis=’0’. In this case, after the
ACCD_X_LSB has been read, the value in the ACCD_X_MSB register is locked until the
ACCD_X_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_X_LSB at any time except
during power-up and in DEEP_SUSPEND mode.
Name
Bit
0x02
7
ACCD_X_LSB
6
5
4
Read/Write
Reset
R
n/a
R
n/a
R
n/a
R
n/a
Value
Content
acc_x_lsb<3:0>
Bit
3
2
1
0
Read/Write
R
R
R
R
Reset
n/a
n/a
n/a
n/a
Value
Content
undefined
undefined
undefined
new_data_x
acc_x_lsb<3:0>: Least significant 4 bits of acceleration read-back value; (two’s-complement
format)
undefined:
random data; to be ignored.
new_data_x:
‚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
© 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.
BOSCH [ Bosch Sensortec GmbH ]
