SCA21X0 VTI [VTI technologies], SCA21X0 Datasheet - Page 12

• Manufacturer Part Number: SCA21X0
• Description: VTI Automotive Digital Accelerometer Platform
• Manufacturer: VTI [VTI technologies]

2.7.2.2
3
3.1 Output registers
3.1.1
3.1.1.1
VTI Technologies Oy
www.vti.fi
Addressing Space
X axis acceleration output
Monitor acceleration data during mass deflection
X_LSB
by CTRL register (see more info in 3.2.1). Note that acceleration output data is not valid during test
and after test is started to one direction there has to be 50ms wait time before output data is used.
Acceleration data can be read out from acceleration output registers during mass deflection self-
test in start-up or during operation, in case that test is repeated by the request. Monitoring this data
it is possible to determine product frequency response and check product timing properties.
Table 5 presents the registers of SCA8X0, SCA21X0 and SCA31X0 products.
Table 5: Register address space
Address: 4h
Bits
7:0
Addr
hex
0A
3F
00
01
02
03
04
05
06
07
08
09
11
12
13
14
15
16
17
26
27
28
...
...
...
Mode
R
REVID
CTRL
STATUS
RESET
X_LSB
X_MSB
Y_LSB
Y_MSB
Z_LSB
Z_MSB
TEMP_LSB
TEMP_MSB
INT_STATUS Interrupt status register in multi-axis components
ID
Name
00h
Initial
Value
ASIC revision ID number
Control
Status
Reset component
X-axis (or Y- or Z-axis in SCA8X0) LSB frame
X-axis (or Y- or Z-axis in SCA8X0) MSB frame
Y-axis LSB frame in multi-axis components
Y-axis MSB frame in multi-axis components
Z-axis LSB frame in multi-axis components
Z-axis MSB frame in multi-axis components
Reserved
Reserved
Reserved
Temperature LSB frame
Temperature MSB frame
Reserved
Reserved
Reserved
Reserved
Reserved
Component ID
Reserved
Reserved
Reserved
Doc. Nr. 82 694 00 C
Name
DATA
Description
X-axis LSB frame (or Y-axis or Z-axis in SCA8X0)
Read always X_MSB prior to X_LSB.
Description
SCA8X0/21X0/3100 Series
(R/RW)
Mode
RW
RW
RW
R
R
R
R
R
R
R
R
R
R
R
-
-
-
-
-
-
-
-
-
-
-
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