KXTIK-1004 Datasheet, PDF (37/54 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
SELF_TEST
When 0xCA is written to this register, the MEMS self-test function is enabled. Electrostatic-actuation of
the accelerometer, results in a DC shift of the X, Y and Z axis outputs. Writing 0x00 to this register will
return the accelerometer to normal operation.
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
1
0
0
1
0
1
0
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
I²C Address: 0x3Ah
Reset Value
00000000
WUF_THRESH
This register sets the acceleration threshold, WUF Threshold that is used to detect a general motion
input. WUF_THRESH scales with GSEL1-GSEL0 in CTRL_REG1, and the KXTIK will ship from the
factory with this value set to correspond to a change in acceleration of 0.5g when configured to +/-
8g. 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
WUFTH7 WUFTH6 WUFTH5 WUFTH4 WUFTH3 WUFTH2 WUFTH1 WUFTH0 Reset Value
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
I²C Address: 0x5Ah
00001000
TILT_ANGLE
This register sets the tilt angle that is used to detect the transition from Face-up/Face-down states to
Screen Rotation states. The KXTIK ships from the factory with tilt angle set to a low threshold of 26°
from horizontal. A different default tilt angle can be requested from the factory. Note that the minimum
suggested tilt angle is 10°. 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
TA7
TA6
TA5
TA4
TA3
TA2
TA1
TA0
Reset Value
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
00001100
I²C Address: 0x5Ch
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