SCA3100-D04 VTI Technologies, SCA3100-D04 Datasheet - Page 19

• Manufacturer Part Number: SCA3100-D04
• Description: ACCELEROMETER 3-AXIS +/-2G SPI
• Manufacturer: VTI Technologies

Specifications of SCA3100-D04

• Axis: X, Y, Z
• Acceleration Range: ±2g
• Sensitivity: 900 counts/g
• Voltage - Supply: 3 V ~ 3.6 V
• Output Type: Digital
• Bandwidth: 55Hz
• Interface: SPI
• Mounting Type: Surface Mount
• Package / Case: 12-SMD
• For Use With: 551-1061 - EVAL BOARD ACCELEROMETER 3-AXIS551-1056 - KIT DEMO ACCELEROMETER SCA3100
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 551-1055-2

3.4 Configuration Registers
VTI Technologies Oy
www.vti.fi
Address: 15h
Register name: BUF_COUNT, output ring buffer status
Address: 16h
Register name: INT_STATUS, interrupt status register (all interrupts that are available in current
operation mode)
SCA3000 configuration register (marked with 'Conf' in Table 5) contents and bit definitions are
described in this section. Configuration registers are used to configure SCA3000 operation and the
operation parameters.
Address: 00h
Register name: REVID, ASIC revision ID number tied in metal
Address: 02h
Register name: STATUS, status register
Bits
Bits
Bits
Bits
7:0
5:4
2:0
7:4
3:0
7:6
4:2
7
6
3
5
1
0
Mode
Mode
Mode
Mode
R
R
R
R
R
R
R
R
R
R
Value
Value
Value
Value
Initial
Initial
Initial
Initial
00h
000
2h
1h
0
0
0
0
0
0
Doc.Nr. 8257300A.07
SPI_FRAME SPI frame error. Bit is reset, when next correct SPI
REVMAJ
REVMIN
BUF_HALF
BUF_FULL
COUNT
CSME
LOCK
Name
Name
Name
Name
FFD
MD
Description
Count of available data samples in output ring buffer,
for more information see section 2.5.2.
Description
Output ring buffer is ¾ full
1 – Ring buffer is ¾ full
0 – Ring buffer is not full
Output ring buffer is ½ full
1 – Ring buffer is ½ full
0 – Ring buffer is not full
Reserved
Free-fall detection
1 – Free-fall detected (0 g acceleration)
0 – Free-fall not detected
Motion detector triggered channel indication
1xx – Trigger on Y-axis
x1x – Trigger on X-axis
xx1 – Trigger on Z-axis
Description
Major revision number
Minor revision number
Description
Reserved
Status of lock register
0 – Lock is closed
1 – Lock is open
Reserved
EEPROM checksum error
1 – EEPROM checksum error
0 – No error
frame is received (only for products with SPI bus).
1 – SPI frame error
0 – No error
SCA3000 Series
Rev.A.07
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