lis3dsh STMicroelectronics, lis3dsh Datasheet - Page 34

• Manufacturer Part Number: lis3dsh
• Description: Mems Digital Output Motion Sensor Ultra Low-power High Performance Three-axis “nano” Accelerometer
• Manufacturer: STMicroelectronics

Register description
8.6
8.7
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The BDU bit is used to inhibit the output registers update until both upper and lower register
parts are read. In default mode (BDU=‘0’) the output register values are updated
continuously. If for any reason it is not sure whether to read faster than the output data rate it
is recommended to set the BDU bit to ‘1’. In this way the content of output registers is not
updated until both MSb and LSb are read avoiding the reading of values related to a
different sample time.
CTRL_REG5 (24h)
Control register 5.
Table 25.
Table 26.
Table 27.
CTRL_REG6 (25h)
Control register 6.
Table 28.
BW2:BW1
FSCALE2:0
ST2:1
SIM
0
0
1
1
BOOOT
BW2
ST2
Control register 5
Control register 5 description
Self-test mode selection
Control register 6
FIFO_EN
Anti-aliasing filter bandwidth. Default value: 00
00=800 Hz; 01=400 Hz; 10:=200 Hz; 11:=50 Hz)
Full-scale selection. Default value: 00
000=+/- 2G; 001=+/- 4G; 010=+/- 6G; 011=+/- 8G; 100=+/- 16G
Self-test enable. Default value: 00
00=self-test disabled;
SPI serial interface mode selection. Default value: 0
0=4-wire interface; 1:=3-wire interface
BW1
0
1
0
1
FSCALE2
WTM_EN
Doc ID 022405 Rev 1
ST1
FSCALE1
ADD_
INC
Normal mode
Positive sign self-test
Negative sign self-test
Not allowed
FSCALE0
EMPTY
P1_
P1_WTM
ST2
Self test mode
P1_OVER
RUN
ST1
LIS3DSH
BOOT
SIM
P2_