KXTIK-1004 Datasheet, PDF (34/54 Pages) List of Unclassifed Manufacturers – 2g/4g/8g Tri-axis Digital Accelerometer Specifications

± 2g / 4g / 8g Tri-axis Digital
Accelerometer Specifications
PART NUMBER:
KXTIK-1004
Rev. 2
Dec-2011
(0xA0h). Note that to properly change the value of this register, the PC1 bit in CTRL_REG1 must first
be set to “0”.
R/W
TWS7
Bit7
R/W
TWS6
Bit6
R/W
TWS5
Bit5
R/W
TWS4
Bit4
R/W
TWS3
Bit3
R/W
R/W
R/W
TWS2 TWS1 TWS0
Bit2
Bit1
Bit0
I²C Address: 0x31h
Reset Value
10100000
BUF_CTRL1
Read/write control register that controls the buffer sample threshold.
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
-
SMP_TH6 SMP_TH5 SMP_TH4 SMP_TH3 SMP_TH2 SMP_TH1 SMP_TH0
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
I²C Address: 0x32h
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 21. Sample Threshold Operation by Buffer Mode
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