Datasheet

Registers description LIS3DH
36/54 DocID17530 Rev 2
8.9 CTRL_REG2 (21h)
8.10 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: High-pass 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))
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 I1_321DA I1_WTM I1_OVERRUN --
Table 36. CTRL_REG3 description
I1_CLICK Click interrupt on INT1. Default value: 0
(0: disable; 1: enable)
I1_IA1 IA1 interrupt on INT1. Default value: 0
(0: disable; 1: enable)
I1_IA2 IA2 interrupt on INT1. Default value: 0
(0: disable; 1: enable)
I1_ZYXDA ZYXDA interrupt on INT1. Default value: 0
(0: disable; 1: enable)
I1_321DA 321DA interrupt on INT1. Default value: 0
(0: disable; 1: enable)
I1_WTM FIFO watermark interrupt on INT1. Default value: 0
(0: disable; 1: enable)
I1_OVERRUN FIFO overrun interrupt on INT1. Default value: 0
(0: disable; 1: enable)