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FXLS8971CF 数据表(PDF) 65 Page - NXP Semiconductors

部件名 FXLS8971CF
功能描述  3-Axis Low-g Accelerometer
PDF  100 Pages
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制造商  NXP [NXP Semiconductors]
网页  http://www.nxp.com
标志 NXP - NXP Semiconductors

FXLS8971CF 数据表(HTML) 65 Page - NXP Semiconductors

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NXP Semiconductors
FXLS8971CF
3-Axis Low-g Accelerometer
Bit
7
6
5
4
3
2
1
0
Name
ORIENT_DBCOUNT[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 86. ORIENT_DBCOUNT register (address 2Ah) bit allocation
Field
Description
7 to 0
ORIENT_
DBCOUNT[7:0]
8-bit unsigned orientation debounce counter value
A new orientation must be maintained for the minimum number of ODR periods specified in
order for the orientation to be considered valid before asserting the
ORIENT_STATUS[NEW_
ORIENT
] event flag.
ORIENT_CONFIG[ORIENT_DBCNTM] controls the counter behavior.
The selected ODR in LPM and HPM modes and the effective ODR when operating in FPM
determines the debounce counter period. Calculate the minimum debounce latency time by:
Debounce_time = (ODR–1 * ORIENT_DBCOUNT)
Note: If the applied acceleration is greater than 1.25 g on any axis, the debounce counter is
held at the current value (frozen).
Table 87. ORIENT_DBCOUNT register (address 2Ah) bit description
15.4.4 ORIENT_BF_ZCOMP register (address 2Bh)
Orientation back/front and Z-tilt angle compensation register
Bit
7
6
5
4
3
2
1
0
Name
ORIENT_BKFR[1:0]
—
ORIENT_ZLOCK[2:0]
Reset
0
1
0
0
0
1
0
0
Access
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Table 88. ORIENT_BF_ZCOMP register (address 2Bh) bit allocation
Field
Description
7 to 6
ORIENT_
BKFR[1:0]
Back-up/Front-up trip angle threshold
Default: 01b; Step size is ~5°/ LSB.
Range: ±65° to ±80°. Default value of ±75°
2 to 0
ORIENT_
ZLOCK[2:0]
Z-lockout angle threshold
Range of ~13° to 44°. Step size is ~4°. Default value of 28.1°
Table 89. ORIENT_BF_ZCOMP register (address 2Bh) bit description
ORIENT_ZLOCK[2:0] Resultant angle (min) for positions between
Landscape and Portrait
Resultant angle (max) for ideal Landscape or
Portrait
000
13.6°
14.5°
001
17.1°
18.2°
Table 90. ORIENT_ZLOCK lockout angles
FXLS8971CF
All information provided in this document is subject to legal disclaimers.
© 2024 NXP B.V. All rights reserved.
Product data sheet
Rev. 2.1 — 7 March 2024
65 / 100



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