参数资料
型号: LIS33DETR
厂商: STMICROELECTRONICS
元件分类: 模拟信号调理
英文描述: SPECIALTY ANALOG CIRCUIT, PBGA16
封装: 3 X 3 MM, 1 MM HEIGHT, GREEN, PLASTIC, LGA-16
文件页数: 21/31页
文件大小: 532K
代理商: LIS33DETR
Register description
LIS33DE
28/31
Doc ID 15596 Rev 1
7.10
FF_WU_THS (32h)
Most significant bit (DCRM) is used to select the resetting mode of the duration counter. If
DCRM=0 counter is reset when the interrupt is no more active else if DCRM=1 duration
counter is decremented.
7.11
FF_WU_DURATION (33h)
Duration register for free-fall/wake-up interrupt. Duration step and maximum value depend
on the ODR chosen. Step 2.5 msec, from 0 to 637.5 msec if ODR=400 Hz, else step 10
msec, from 0 to 2.55 sec when ODR=100 Hz. The counter used to implement duration
function is blocked when LIR=1 in configuration register and the interrupt event is verified.
Table 32.
FF_WU_THS (32h) register
DCRM
THS6
THS5
THS4
THS3
THS2
THS1
THS0
Table 33.
FF_WU_THS (32h) register description
DCRM
Resetting mode selection. Default value: 0
(0: counter reset; 1: counter decremented)
THS6, THS0
Free-fall / wake-up Threshold: default value: 000 0010
Table 34.
FF_WU_DURATION (33h) register
D7
D6
D5
D4
D3
D2
D1
D0
Table 35.
FF_WU_DURATION (33h) register description
D7-D0
Duration value. Default value: 0000 0000
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