MC3610 Datasheet, PDF (21/67 Pages) List of Unclassifed Manufacturers – Axis Accelerometer

MC3610 3-Axis Accelerometer
Preliminary Datasheet
5.5 Operational Modes
The device has various modes of operation as described below:
Mode
Description and Comments
SLEEP
SLEEP is the lowest power mode. The DVDD regulator is enabled, but there
are no clock activity, and much of the chip is disabled. The SLEEP mode is
the default POR mode. This command holds the MODE state machine in a
reset condition. This command is available at any time, although it will not
“activate” until the current I2C or SPI transaction has returned to idle.
STANDBY
STANDBY is a low power mode. AVDD and DVDD are enabled, and internal
main and heartbeat clocks are enabled. The default STANDBY frequency for
the heartbeat clock is ~500 Hz. TRIG mode operation must be executed from
this mode.
Software must change the mode to STANDBY in register 0x10 before writing to
any other register.
SNIFF
SNIFF is a lower power, limited activity detection mode; Sniff circuitry is
enabled, there is no sampling, no FIFO operations, and hardware will
automatically transition to CWAKE mode upon activity detection.
CWAKE
CWAKE or continuous wake uses a slower clock speed and the entire
sampling period to run the SDM/ADC. Sample data is written to the output
registers or the FIFO when enabled.
TRIG
Processes a fixed number of samples, between 1 and 255. This mode
ignores the setting in the ODR, but uses the STB_RATE[2:0] clock setting as
the sampling rate.
Table 9. Operational Modes
mCube Proprietary.
APS-048-0042v1.6
© 2015 mCube Inc. All rights reserved.
21 / 67