BMA253
Data sheet
Page 48
6. Register description
6.1 General remarks
The entire communication with the device is performed by reading from and writing to registers.
Registers have a width of 8 bits; they are mapped to a common space of 64 addresses from
(0x00) up to (0x3F). Within the used range there are several registers which are either
completely or partially marked as ‘reserved’. Any reserved bit is ignored when it is written and
no specific value is guaranteed when read. It is recommended not to use registers at all which
are completely marked as ‘reserved’. Furthermore it is recommended to mask out (logical and
with zero) reserved bits of registers which are partially marked as reserved.
Registers with addresses from (0x00) up to (0x0E) are read-only. Any attempt to write to these
registers is ignored. There are bits within some registers that trigger internal sequences. These
bits are configured for write-only access, e. g. (0x21) reset_int or the entire (0x14) softreset
register, and read as value ´0´.
BST-BMA253-DS000-01 | Revision 1.0 | August 2015
Bosch Sensortec
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Note: Specifications within this document are subject to change without notice.
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