Datasheet

Data Sheet
BMA456
Page 26
BST-BMA456-DS000-01 | Version 1.1 | October 2017 Bosch Sensortec
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BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany.
Note: Specifications within this document are subject to change without notice.
If the auxiliary sensor interface is enabled, the number of auxiliary sensor bytes in a FIFO frame is
always AUX_IF_CONF.aux_rd_burst bytes (see chapter 4.8). If the burst length is less than 8, BMA456
will pad the values read form the auxiliary sensor. E.g. if AUX_IF_CONF.aux_rd_burst=0b01 (2 Bytes),
a frame with auxiliary sensor and accelerometer data will look like
DATA[X]
Acronym
X=0
AUX_0
copy of register Val(AUX_RD_ADDR.read_addr) in auxiliary
sensor register map
X=1
AUX_1
copy of register Val(AUX_RD_ADDR.read_addr+1) in
auxiliary sensor register map
X=2
Padding byte
Undefined value
X=3
Padding byte
Undefined value
X=4
Padding byte
Undefined value
X=5
Padding byte
Undefined value
X=6
Padding byte
Undefined value
X=7
Padding byte
Undefined value
X=8
ACC_X<7:0> (LSB)
X=9
ACC_X<15:8> (MSB)
X=10
ACC_Y<7:0> (LSB)
X=11
ACC_Y<15:8> (MSB)
X=12
ACC_Z<7:0> (LSB)
X=13
ACC_Z<15:8> (MSB)