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LIS331DL Datasheet(PDF) 31 Page - STMicroelectronics |
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LIS331DL Datasheet(HTML) 31 Page - STMicroelectronics |
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31 / 38 page  LIS331DL Register description 31/38 7.13 FF_WU_DURATION_1 (33h) Duration register for Free-Fall/Wake-Up interrupt 1. Duration step and maximum value depend on the ODR chosen. Step 2.5 msec, from 0 to 637.5 msec if ODR=400Hz, else step 10 msec, from 0 to 2.55 sec when ODR=100Hz. The counter used to implement duration function is blocked when LIR=1 in configuration register and the interrupt event is verified 7.14 FF_WU_CFG_2 (34h) Table 30. FF_WU_DURATION_1 register D7 D6 D5 D4 D3 D2 D1 D0 Table 31. FF_WU_DURATION_1 description D7-D0 Duration value. Default value: 0000 0000 Table 32. FF_WU_CFG_2 register AOI LIR ZHIE ZLIE YHIE YLIE XHIE XLIE Table 33. FF_WU_CFG_2 description AOI And/Or combination of Interrupt events. Default value: 0 (0: OR combination of interrupt events; 1: AND combination of interrupt events) LIR Latch Interrupt request into FF_WU_SRC_2 reg with the FF_WU_SRC_2 reg cleared by reading FF_WU_SRC_2 reg. Default value: 0 (0: interrupt request not latched; 1: interrupt request latched) ZHIE Enable interrupt generation on Z high event. Default value: 0 (0: disable interrupt request; 1: enable interrupt request on measured accel. value higher than preset threshold) ZLIE Enable interrupt generation on Z low event. Default value: 0 (0: disable interrupt request; 1: enable interrupt request on measured accel. value lower than preset threshold) YHIE Enable interrupt generation on Y high event. Default value: 0 (0: disable interrupt request; 1: enable interrupt request on measured accel. value higher than preset threshold) YLIE Enable interrupt generation on Y low event. Default value: 0 (0: disable interrupt request; 1: enable interrupt request on measured accel. value lower than preset threshold) XHIE Enable interrupt generation on X high event. Default value: 0 (0: disable interrupt request; 1: enable interrupt request on measured accel. value higher than preset threshold) XLIE Enable interrupt generation on X low event. Default value: 0 (0: disable interrupt request; 1: enable interrupt request on measured accel. value lower than preset threshold) |
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