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ADXL362BCCZ-R2 数据表(PDF) 29 Page - Analog Devices |
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ADXL362BCCZ-R2 数据表(HTML) 29 Page - Analog Devices |
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29 / 44 page ![]() Data Sheet ADXL362 Rev. B | Page 29 of 44 ACTIVITY/INACTIVITY CONTROL REGISTER Address: 0x27, Reset: 0x00, Name: ACT_INACT_CTL Table 13. Bit Descriptions for ACT_INACT_CTL Bits Bit Name Settings Description Reset Access [7:6] UNUSED Unused Bits. 0x0 RW [5:4] LINK/LOOP X0 Default Mode. 0x0 RW Activity and inactivity detection are both enabled, and their interrupts (if mapped) must be acknowledged by the host processor by reading the STATUS register. Autosleep is disabled in this mode. Use this mode for free fall detection applications. 01 Linked Mode. Activity and inactivity detection are linked sequentially such that only one is enabled at a time. Their interrupts (if mapped) must be acknowledged by the host processor by reading the STATUS register. 11 Loop Mode. Activity and inactivity detection are linked sequentially such that only one is enabled at a time, and their interrupts are internally acknowledged (do not need to be serviced by the host processor). To use either linked or looped mode, both ACT_EN (Bit 0) and INACT_EN (Bit 2) must be set to 1; otherwise, the default mode is used. For additional information, refer to the Linking Activity and Inactivity Detection section. 3 INACT_REF Referenced/Absolute Inactivity Select. 0x0 RW 1 = inactivity detection function operates in referenced mode. 0= inactivity detection function operates in absolute mode. 2 INACT_EN Inactivity Enable. 0x0 RW 1 = enables the inactivity (underthreshold) functionality. 1 ACT_REF Referenced/Absolute Activity Select. 0x0 RW 1 = activity detection function operates in referenced mode. 0 = activity detection function operates in absolute mode. 0 ACT_EN Activity Enable. 0x0 RW 1 = enables the activity (overthreshold) functionality. |
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