CMA3000-D0X VTI Hamlin, CMA3000-D0X Datasheet - Page 13

• Manufacturer Part Number: CMA3000-D0X
• Description: Cma3000-d0x Series 3-axis Accelerometer
• Manufacturer: VTI Hamlin

VTI Technologies Oy
www.vti.fi
Address: 02h
Register name: CTRL, Control register
Note that after changing MODE bits it may take some time to recover the target operating state.
ODR = Output Data Rate.
Address: 03h
Register name: STATUS, Status register
Address: 04h
Register name: RSTR, Reset register
Bits
Bits
Bits
3:1
7:4
2:1
7:0
7
6
5
4
0
3
0
Mode
Mode
Mode
RW
RW
RW
RW
RW
RW
RW
R
R
Value
Initial
Value
Value
Initial
Initial
0
0
0
0
0
0
0h
0h
0h
0
0
Doc.Nr. 8281000.12
MDET_EXIT
INT_LEVEL
MODE[2:0]
G_RANGE
I2C_DIS
INT_DIS
PORST
Name
PERR
Name
Name
RSTR
Description
0 – 8g measurement range is selected
1 – 2g measurement range is selected
0 – INT is active when INT pin is set to logic high
1 – INT is active when INT pin is set to logic low
0 – Device goes to measurement mode after motion
1 – Device remains in motion detection mode after
0 – I
1 – I
0 – Interrupts enabled
1 – Interrupts disabled
Description
Reserved
1 means Power-on-Reset state. Reading the register
sets always bit to 0.
Reserved
0 – No EEPROM Parity Error
1 – EEPROM Parity Error
Description
Writing 02h, 0Ah, 04h in this order resets ASIC.
Other sequences reserved.
000 – Power down mode, default mode.
001 – Measurement mode, 100 Hz ODR.
010 – Measurement mode, 400 Hz ODR.
011 – Measurement mode, 40 Hz ODR.
100 – Motion detection mode, 10 Hz ODR.
101 – Free fall detection mode, 100 Hz ODR.
110 – Free fall detection mode, 400 Hz ODR.
111 – Power down mode
•
•
•
is detected (400Hz ODR)
motion is detected.
2
2
C interface enabled
C interface disabled.
Measurement mode: data ready
Motion detection mode: motion detected
Free fall detection mode: free fall detected
CMA3000-D0X Series
Rev. 0.12
13/ 35