LSM303AGR Datasheet, PDF (47/68 Pages) STMicroelectronics – ultra-low-power 3D accelerometer and 3D magnetometer

LSM303AGR
Register description
HPM[1:0]
HPCF[2:1]
FDS
HPCLICK
HPIS2
HPIS1
Table 36. CTRL_REG2 description
High-pass filter mode selection. Default value: 00
Refer to Table 37 for filter mode configuration
High-pass filter cutoff frequency selection
Filtered data selection. Default value: 0
(0: internal filter bypassed; 1: data from internal filter sent to output register and FIFO)
High-pass filter enable for CLICK function.
(0: filter bypassed; 1: filter enabled)
High-pass filter enable for AOI function on Interrupt 2.
(0: filter bypassed; 1: filter enabled)
High-pass filter enable for AOI function on Interrupt 1.
(0: filter bypassed; 1: filter enabled)
8.8
Table 37. High-pass filter mode configuration
HPM1 HPM0 High-pass filter mode
0
0
Normal mode (reset by reading the REFERENCE/DATACAPTURE_A (26h) regis-
ter)
0
1
Reference signal for filtering
1
0
Normal mode
1
1
Autoreset on interrupt event
CTRL_REG3_A (22h)
I1_CLICK I1_AOI1
Table 38. CTRL_REG3 register
I1_AOI2 I1_DRDY1 I1_DRDY2 I1_WTM
I1_OVERRUN --
I1_CLICK
I1_AOI1
I1_AOI2
I1_DRDY1
I1_DRDY2
I1_WTM
I1_OVERRUN
Table 39. CTRL_REG3 description
CLICK interrupt on INT1 pin. Default value 0.
(0: disable; 1: enable)
AOI1 interrupt on INT1 pin. Default value 0.
(0: disable; 1: enable)
AOI2 interrupt on INT1 pin. Default value 0.
(0: disable; 1: enable)
DRDY1 interrupt on INT1 pin. Default value 0.
(0: disable; 1: enable)
DRDY2 interrupt on INT1 pin. Default value 0.
(0: disable; 1: enable)
FIFO watermark interrupt on INT1 pin. Default value 0.
(0: disable; 1: enable)
FIFO overrun interrupt on INT1 pin. Default value 0.
(0: disable; 1: enable)
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