KX022-1020 Datasheet, PDF (40/75 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
WUFE enables the Wake Up (motion detect) function. 0= disabled, 1= enabled. Note that to
change the value of this bit, the PC1 bit must first be set to “0”.
0 = Wake Up function disabled
1 = Wake Up function enabled
TPE enables the Tilt Position function that will detect changes in device orientation. Note that
to change the value of this bit, the PC1 bit must first be set to “0”.
TPE = 0 – disable
TPE = 1 – enable
CNTL2
Read/write control register that provides more feature set control. 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
SRST COTC
LEM
RIM
DOM
UPM
FDM
FUM
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
I²C Address: 0x19h
Reset Value
00111111
SRST initiates software reset, which performs the RAM reboot routine. This bit will remain 1
until the RAM reboot routine is finished.
SRST = 0 – no action
SRST = 1 – start RAM reboot routine
COTC Command test control.
DCST = 0 – no action
DCST = 1 – sets STR register to 0xAAh and when STR is read, sets this bit to 0 and
sets STR to 0x55h
TLEM, TRIM, TDOM, TUPM, TFDM these bits control the tilt axis mask. Per Table 17, if a
direction’s bit is set to one (1), tilt in that direction will generate an interrupt. If it is set
to zero (0), tilt in that direction will not generate an interrupt. Note that to properly
change the value of this register, the PC1 bit in CTRL_REG1 must first be set to “0”.
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Bit
Description
TLEM
X Negative (X-)
TRIM
X Positive (X+)
TDOM
Y Negative (Y-)
TUPM
Y Positive (Y+)
TFDM
Z Negative (Z-)
TFUM
Z Positive (Z+)
Table 17: Tilt Direction^TM Axis Mask
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