SCA21X0 VTI [VTI technologies], SCA21X0 Datasheet - Page 17

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

3.1.6 Status Register (STATUS)
3.1.7 Interrupt Status Register (INT_STATUS)
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where Temp[°C] is temperature in Celsius and Temp
TEMP_LSB registers in decimal format, bits(t9:0). k is temperature slope factor specified as
Address: 2h
Address: 16h
The bits in this interrupt status register and corresponding SPI frame bits are cleared after register
has been read. Register reading is treated as interrupt acknowledgement signal. These bits are
kept active even failure condition is over if they are not acknowledged.
This register is not defined in SCA8X0.
Temp
Bits
7:3
2
1
0
Bits
7
6
5
4
3:0
[ ] (
°
C
=
Mode
R
R
R
R
R
Mode
-
R
R
R
23
k
±
10
)
°
Initial
Value
0
0
0
0
0000
C
Initial
Value
-
0
0
0
+
Min
2.8
Temp
dec
Doc. Nr. 82 694 00 C
Name
SAT
STS
STC
k
CSMERR
Name
ATEST
FRME
LSB
−
°
Typ
3.2
C
512
LSB
Description
Reserved
Saturation status of output data
1 – Over range detected, one or 2-3 of xyz axis is
saturated and output data is not valid.
0 – Data in range
SAT bit is also visible in SPI frame. This bit can be
active after start-up or reset stage before signal
path settles to final value and it has to be
acknowledged in start-up sequence (see Table 3)
or after SW reset or after PORST stage.
Status of gravitation based start-up self test
1 – Failure
0 – No failure
STS sets also ST bit in SPI frame.
Status of continuous self test
1 – Failure
0 – No failure
STC sets also ST bit in SPI frame.
Reserved
Description
Reserved
Analog test mode status
1 – Test mode is active
0 – Test mode is not active
EEPROM Checksum Error. In
SCA21X0/SCA31X0 ST bit of SPI frame is also
set if CSMERR is set.
SPI frame error. Bit is reset, when next correct
SPI frame is received. Bit is also visible in SPI
frame.
,
Max
3.6
dec
is temperature from TEMP_MSB and
Unit
LSB/
o
C
SCA8X0/21X0/3100 Series
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