SCA8X0/21X0/3100 Series
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.
2.7.2.2 Monitor acceleration data during mass deflection
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.
3
Addressing Space
Table 5 presents the registers of SCA8X0, SCA21X0 and SCA31X0 products.
Table 5: Register address space
Addr
hex
Name
REVID
CTRL
STATUS
Description
ASIC revision ID number
Control
Status
Mode
(R/RW)
00
01
02
R
RW
R
03
04
05
06
07
08
09
0A
...
RESET
X_LSB
X_MSB
Y_LSB
Y_MSB
Z_LSB
Z_MSB
Reset component
RW
R
R
R
R
R
R
-
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
-
11
12
13
14
15
16
17
...
26
27
28
...
Reserved
Temperature LSB frame
TEMP_MSB Temperature MSB frame
-
TEMP_LSB
R
R
-
-
R
-
Reserved
Reserved
INT_STATUS Interrupt status register in multi-axis components
Reserved
Reserved
Reserved
Component ID
Reserved
-
-
ID
RW
-
-
Reserved
3F
Reserved
-
3.1 Output registers
3.1.1 X axis acceleration output
3.1.1.1 X_LSB
Address: 4h
Bits
Mode
R
Initial
Value
00h
Name
DATA
Description
7:0
X-axis LSB frame (or Y-axis or Z-axis in SCA8X0)
Read always X_MSB prior to X_LSB.
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