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LIS2DH12 Datasheet(PDF) 36 Page - STMicroelectronics

Part # LIS2DH12
Description  Free-fall detection
PDF  53 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LIS2DH12 Datasheet(HTML) 36 Page - STMicroelectronics

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Register description
LIS2DH12
36/53
DocID025056 Rev 6
8.7
CTRL_REG2 (21h)
8.8
CTRL_REG3 (22h)
Table 32. CTRL_REG2 register
HPM1
HPM0
HPCF2
HPCF1
FDS
HPCLICK
HP_IA2
HP_IA1
Table 33. CTRL_REG2 description
HPM[1:0]
High-pass filter mode selection. Default value: 00
Refer to Table 34 for filter mode configuration
HPCF[2:1]
High-pass filter cutoff frequency selection
FDS
Filtered data selection. Default value: 0
(0: internal filter bypassed; 1: data from internal filter sent to output register and FIFO)
HPCLICK
High-pass filter enabled for CLICK function.
(0: filter bypassed; 1: filter enabled)
HP_IA2
High-pass filter enabled for AOI function on Interrupt 2.
(0: filter bypassed; 1: filter enabled)
HP_IA1
High-pass filter enabled for AOI function on Interrupt 1.
(0: filter bypassed; 1: filter enabled)
Table 34. High-pass filter mode configuration
HPM1
HPM0
High-pass filter mode
0
0
Normal mode (reset by reading REFERENCE (26h) register)
0
1
Reference signal for filtering
1
0
Normal mode
1
1
Autoreset on interrupt event
Table 35. CTRL_REG3 register
I1_CLICK
I1_IA1
I1_IA2
I1_ZYXDA
0(1)
1. This bit must be set to ‘0’ for correct operation of the device.
I1_WTM
I1_OVERRUN
--
Table 36. CTRL_REG3 description
I1_CLICK
CLICK interrupt on INT1 pin. Default value: 0
(0: disable; 1: enable)
I1_IA1
IA1 interrupt on INT1 pin. Default value: 0
(0: disable; 1: enable)
I1_IA2
IA2 interrupt on INT1 pin. Default value: 0
(0: disable; 1: enable)
I1_ZYXDA
ZYXDA interrupt on INT1 pin. Default value: 0
(0: disable; 1: enable)
I1_WTM
FIFO watermark interrupt on INT1 pin. Default value: 0
(0: disable; 1: enable)
I1_OVERRUN
FIFO overrun interrupt on INT1 pin. Default value: 0
(0: disable; 1: enable)



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