LSM303DLM STMicroelectronics, LSM303DLM Datasheet - Page 27

• Manufacturer Part Number: LSM303DLM
• Description: Board Mount Accelerometers 3axis accelerometr & 3-axis magnetometer
• Manufacturer: STMicroelectronics

Specifications of LSM303DLM

• Lead Free Status / Rohs Status: Supplier Unconfirmed

LSM303DLM
9.1.5
9.1.6
9.1.7
CTRL_REG5_A (24h)
Table 29.
Table 30.
TurnOn bits are used for turning on the sleep-to-wakeup function.
Table 31.
By setting the TurnOn [1:0] bits to 11, the “sleep-to-wakeup” function is enabled. When an
interrupt event occurs, the device goes into normal mode, increasing the ODR to the value
defined in CTRL_REG1_A. Although the device is in normal mode, CTRL_REG1_A content
is not automatically changed to “normal mode” configuration.
HP_FILTER_RESET_A (25h)
Dummy register. Reading at this address instantaneously zeroes the content of the internal
high-pass filter. If the high-pass filter is enabled, all three axes are instantaneously set to 0
g. This makes it possible to surmount the settling time of the high-pass filter.
REFERENCE_A (26h)
Table 32.
Table 33.
This register sets the acceleration value taken as a reference for the high-pass filter output.
When the filter is turned on (at least one FDS, HPen2, or HPen1 bit is equal to ‘1’) and HPM
bits are set to “01”, filter out is generated taking this value as a reference.
TurnOn1,
TurnOn0
Ref7 - Ref0
TurnOn1
Ref7
0
0
1
CTRL_REG5_A register
CTRL_REG5_A description
Sleep-to-wakeup configuration
REFERENCE_A register
REFERENCE_A description
Turn-on mode selection for sleep-to-wakeup function. Default value: 00.
Reference value for high-pass filter. Default value: 00h.
Ref6
0
TurnOn0
0
1
Ref5
0
Sleep-to-wakeup function is disabled
Turned on: the device is in low-power mode
(ODR is defined in CTRL_REG1_A)
Doc ID 018725 Rev 1
Ref4
0
Sleep-to-wakeup status
Ref3
0
Ref2
0
Register description
TurnOn1
Ref1
TurnOn0
Ref0
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