CMA3000-D0X VTI Hamlin, CMA3000-D0X Datasheet - Page 12

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

3
3.1 Register Description
3.2 Non-volatile memory
3.3 Registers
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Addressing Space
The CMA3000 register contents and bit definitions are described in more detail in the following
sections.
The CMA3000 addressing space is presented in Table 3 below.
Table 3. List of registers
Address is the register address in hex format.
RW – Read / Write register, R – Read-only register, NV – non-volatile register content.
The CMA3000 has an internal non-volatile memory for calibration and configuration data. Memory
content will be programmed during production and is not user configurable. Initial configuration
values mirrored to volatile registers after reset can be found in the following section 3.3.
Address: 00h
Register name: WHO_AM_I, Identification register
Address: 01h
Register name: REVID, ASIC revision ID
Bits
Bits
Address
6:0
7:4
3:0
0Dh-19h
7
0Ch
0Ah
0Bh
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
Mode
Mode
R
R
R
R
Name
WHO_AM_I
REVID
CTRL
STATUS
RSTR
INT_STATUS
DOUTX
DOUTY
DOUTZ
MDTHR
MDFFTMR
FFTHR
I2C_ADDR
Value
Value
Initial
Initial
xxh
1h
0h
0
Doc.Nr. 8281000.12
REVMAJ
REVMIN
Name
Name
Description
Identification register
ASIC revision ID, fixed in metal
Configuration (por, operation
modes)
Status (por, EEPROM parity)
Reset Register
Interrupt status register
X channel output data register
Y channel output data register
Z channel output data register
Motion detection threshold value
register
Free fall and motion detection
time register
Free fall threshold value register
I
Reserved
2
C device address
Description
Reserved
Identification register
Description
Major revision number
Minor revision number (metal mask change)
(R, RW, NV)
Mode
RW
RW
RW
RW
RW
R
R
R
R
R
R
R
R
Reg.
type
Output
Output
Conf
Output
Conf
Output
Output
Output
Output
Conf
Conf
Conf
Conf
CMA3000-D0X Series
Rev. 0.12
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