FXLS8471Q Datasheet, PDF (21/75 Pages) Freescale Semiconductor, Inc – Linear Accelerometer

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Modes of Operation
Sleep
Active
OFF
Standby
Wake
Figure 9. FXLS8471Q power mode transition diagram
Table 12. Mode of operation description
Mode
I²C/SPI Bus state
VDD
VDDIO
OFF
Powered down
<1.8 V VDDIO can be > VDD
Standby
I²C/SPI communication with
FXLS8471Q is possible
ON
VDDIO = High
VDD = High
Active bit is cleared
Active
(Wake/Sleep)
I²C/SPI communication with
FXLS8471Q is possible
ON
VDDIO = High
VDD = High
Active bit is set
Function description
The device is powered off. All analog and digital blocks
are shutdown. I²C bus inhibited.
Only digital blocks are enabled.
Analog subsystem is disabled. Internal clocks disabled.
All blocks are enabled (digital and analog).
All register contents are preserved when transitioning from Active to Standby mode, but some registers are reset when
transitioning from Standby to Active. These registers are noted in Table 13, “Register Address Map,” on page 25. The Sleep and
Wake modes are active modes. For more information on how to use the Sleep and Wake modes and configuring the device to
transition between them, please refer to Section 8, “Embedded Functionality” or Freescale application note AN4074.
Sensors
Freescale Semiconductor, Inc.
FXLS8471Q
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