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FXLS8964AF 数据表(PDF) 60 Page - NXP Semiconductors |
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FXLS8964AF 数据表(HTML) 60 Page - NXP Semiconductors |
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60 / 98 page ![]() NXP Semiconductors FXLS8964AF 3-Axis Low-g Accelerometer FXLS8964AF All information provided in this document is subject to legal disclaimers. © NXP B.V. 2020. All rights reserved. Objective data sheet Rev. 2 — 30 October 2020 60 / 98 BUF_CONFIG2. The same functions used to enter SLEEP are also used to exit this mode when activity is detected with the exception of the SRC_BUF event flag, which can only be used to prevent/delay a transition from WAKE to SLEEP if the host system is reading data from the buffer (and clearing SRC_BUF). A transition from SLEEP to WAKE mode occurs as soon as one of the enabled detection events becomes active. Refer to Table 69 for the corresponding Interrupt event sources. Table 64. ASLP_COUNT_LSB register (address 1Eh) bit allocation Bit 7 6 5 4 3 2 1 0 Name ASLP_COUNT[7:0] Reset 0 0 0 0 0 0 0 0 Access R/W R/W R/W R/W R/W R/W R/W R/W Table 65. ASLP_COUNT_LSB register (address 1Eh) bit description Field Description 7:0 ASLP_COUNT [7:0] LSB of the 12-bit unsigned count value used for inactivity detection. The counter period is determined by the selected WAKE mode ODR. Table 66. ASLP_COUNT_MSB register (address 1Fh) bit allocation Bit 7 6 5 4 3 2 1 0 Name — — — — ASLP_COUNT[11:8] Reset 0 0 0 0 0 0 0 0 Access R/W R/W R/W R/W R/W R/W R/W R/W Table 67. ASLP_COUNT_MSB register (address 1Fh) bit description Field Description 3:0 ASLP_COUNT [11:8] MSB (nibble) of the 12-bit unsigned count value used for inactivity detection. The counter period is determined by the selected WAKE mode ODR. Table 68. ASLP_COUNT timer period WAKE mode ODR (Hz) WAKE mode ODR Period (ms) ASLP_COUNT Period (ms) Max Inactivity Time (s) 3200 0.3125 0.3125 1.28 1600 0.625 0.625 2.56 800 1.25 1.25 5.12 400 2.5 2.5 10.24 200 5 5 20.48 100 10 10 40.96 50 20 20 81.92 |
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