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BMA253 参数 Datasheet PDF下载

BMA253图片预览
型号: BMA253
PDF下载: 下载PDF文件 查看货源
内容描述: [3轴 12bit 加速度传感器]
分类和应用: 传感器
文件页数/大小: 119 页 / 2014 K
品牌: BOSCH [ Bosch Sensortec GmbH ]
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BMA253  
Data sheet  
Page 77  
Register 0x27 (INT_5)  
Contains the definition of the number of samples to be evaluated for the slope interrupt (any-  
motion detection) and the slow/no-motion interrupt trigger delay.  
Name  
Bit  
0x27  
7
INT_5  
6
5
4
Read/Write R/W  
R/W  
0
R/W  
0
R/W  
0
Reset  
0
Value  
Content  
slo_no_mot_dur<5:2>  
Bit  
3
2
1
0
Read/Write R/W  
R/W  
0
R/W  
0
R/W  
0
Reset  
0
Value  
Content  
slo_no_mot_dur<1:0>  
slope_dur<1:0>  
slo_no_mot_dur<5:0>:  
Function depends on whether the slow-motion or no-motion  
interrupt function has been selected. If the slow-motion interrupt function has  
been enabled (slo_no_mot_sel = ‘0’) then [slo_no_mot_dur<1:0>+1]  
consecutive slope data points must be above the slow/no-motion threshold  
(slo_no_mot_th) for the slow-/no-motion interrupt to trigger. If the no-motion  
interrupt function has been enabled (slo_no_mot_sel = ‘1’) then  
slo_no_motion_dur<5:0> defines the time for which no slope data points  
must exceed the slow/no-motion threshold (slo_no_mot_th) for the slow/no-  
motion interrupt to trigger. The delay time in seconds may be calculated  
according with the following equation:  
slo_no_mot_dur<5:4>=’b00’ [slo_no_mot_dur<3:0> + 1]  
slo_no_mot_dur<5:4>=’b01’ [slo_no_mot_dur<3:0> · 4 + 20]  
slo_no_mot_dur<5>=’1’ [slo_no_mot_dur<4:0> · 8 + 88]  
slope_dur<1:0>: slope interrupt triggers if [slope_dur<1:0>+1] consecutive slope data points  
are above the slope interrupt threshold slope_th<7:0>  
BST-BMA253-DS000-01 | Revision 1.0 | August 2015  
Bosch Sensortec  
© Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to  
third parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany.  
Note: Specifications within this document are subject to change without notice.  
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