BMA255 datasheet(64/119 Pages) BOSCH

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BMA255

Data sheet

Page 64

BST-BMA255-DS004-05 | Revision 1.2 | August 2014

Bosch Sensortec

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.

Configuration settings for low power mode.

Name

0x12

PMU_LOW_POWER

Bit

Read/Write

R/W

Reset

Value

Content

reserved

lowpower_mode

sleeptimer_mode

reserved

Bit

Read/Write

R/W

Reset

Value

Content

reserved

lowpower_mode: select ‘0’  LPM1, or ‘1´  LPM2 configuration for SUSPEND and

LOW_POWER mode. In the LPM1 configuration the power consumption in

LOW_POWER mode and SUSPEND mode is significantly reduced when

compared to LPM2 configuration, but the FIFO is not accessible and writing

to registers must be slowed down. In the LPM2 configuration the power

consumption in LOW_POWER mode is reduced compared to NORMAL

mode, but the FIFO is fully accessible and registers can be written to at full

speed.

sleeptimer_mode: when in LOW_POWER mode ‘0’  use event-driven time-base mode

(compatible with BMA250), or ‘1´  use equidistant sampling time-base

mode. Equidistant sampling of data into the FIFO is maintained in

equidistant time-base mode only.

reserved:

write ‘0’

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