KX022-1020 Datasheet, PDF (53/75 Pages) List of Unclassifed Manufacturers – Accelerometer Specifications

± 2g / 4g / 8g Tri-axis Digital
Accelerometer Specifications
PART NUMBER:
KX022-1020
Rev. 11.0
10-Sep-15
BUF_CNTL1
Read/write control register that controls the buffer sample threshold. Note that to properly change the
value of this register, the PC1 bit in CTRL_REG1 must first be set to “0”.
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
-
SMP6 SMP5 SMP4 SMP3 SMP2 SMP1 SMP0
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
I²C Address: 0x3Ah
Reset Value
00000000
SMP_TH[6:0] Sample Threshold; determines the number of samples that will trigger a
watermark interrupt or will be saved prior to a trigger event. When BUF_RES=1, the
maximum number of samples is 41; when BUF_RES=0, the maximum number of
samples is 84.
Buffer Model
Bypass
FIFO
Stream
Trigger
FILO
Sample Function
None
Specifies how many buffer sample are needed
to trigger a watermark interrupt.
Specifies how many buffer samples are needed
to trigger a watermark interrupt.
Specifies how many buffer samples before the
trigger event are retained in the buffer.
Specifies how many buffer samples are needed
to trigger a watermark interrupt.
Table 22: Sample Threshold Operation by Buffer Mode
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