MC3630 Datasheet, PDF (38/83 Pages) –

MC3630 3-Axis Accelerometer
Preliminary Datasheet
(0x08) Status Register 1
This register reports the operational mode of the device. Note that the lower 3-bits, the
MODE[2:0] field, do not immediately change once a command is written to the MODE register,
but may take up to 3 transitions of the heartbeat clock.
Addr Name
7
6
5
Bit
POR
4
3
2
1
0
Value R/W
0x08 STATUS_1 INT_PEND FIFO_ FIFO_FULL FIFO_
THRESH
EMPTY
NEW_ MODE[2] MODE[1] MODE[0] 00000000 RO
DATA
Bit
[2:0]
Name
MODE[2:0]
Bit Field
000
001
010
011
100
101
110
Description
Mode
Comments
SLEEP
Lowest power mode,
regulators on, no clock activity,
partial chip power-down
STANDBY Low power mode, no
sampling, clocks active.
SNIFF
Sniff activity detection mode,
sniff enabled, sniff sampling,
no FIFO operations,
automatically transition to
CWAKE mode upon activity
detection
RESV
Reserved
RESV
Reserved
CWAKE
Continuous wake. Active XYZ
sampling. Sniff circuitry not
active.
SWAKE
Use Sniff logic, main XYZ
pipeline and optional FIFO at
the same time; highest power
consumption
mCube Proprietary
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APS-048-0047v1.2
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