sca3060 VTI Hamlin, sca3060 Datasheet - Page 16

• Manufacturer Part Number: sca3060
• Description: 3-axis Accelerometer
• Manufacturer: VTI Hamlin

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www.vti.fi
Address value: 00010
Register name: MD_CTRL, Motion Detector control (Indirect access via CTRL_SEL)
Address value: 00011
Register name: MD_V1_TH, Motion Detector V1-threshold (Indirect access via CTRL_SEL)
Address value: 00100
Register name: MD_V2_TH, Motion Detector V2-threshold (Indirect access via CTRL_SEL)
Address value: 00101
Register name: MD_V3_TH, Motion Detector V3-threshold (Indirect access via CTRL_SEL)
The bit level descriptions for registers MD_V1_TH, MD_V2_TH and MD_V3_TH are presented in
Table 5 below. The threshold levels are in unsigned format and they are absolute values for the
acceleration that triggers the motion detector interrupt. Values presented below are typical
threshold values and they are not factory calibrated.
Bits
Bits
Bits
Bits
7:6
7:0
7:0
7:0
5
4
3
2
1
0
•
Initial values for registers MD_V1_TH, MD_V2_TH and MD_V3_TH are 08h.
Value
Initial
0
0
0
1
1
1
Value
Value
Value
Initial
Initial
Initial
08h
08h
08h
REQ_V3
REQ_V2
REQ_V1
EN_V3
EN_V2
EN_V1
Name
Doc.Nr. 82 1150 00
V1_TH
V2_TH
V3_TH
Name
Name
Name
Description
Reserved
1 – Require trigger on V3-
channel
0 – Not required
1 – Require trigger on V2-
channel
0 – Not required
1 – Require trigger on V1-
channel
0 – Not required
1 – Enable trigger on V3-
channel
0 – Not required
1 – Enable trigger on V1-
channel
0 – Not required
1 – Enable trigger on V2-
channel
0 – Not required
Description
Threshold for V1 direction acceleration change
when MD is used.
Description
Threshold for V2 direction acceleration change
when MD is used.
Description
Threshold for V3 direction acceleration change
when MD is used.
Note
Bits 5:3 can be
used to build logical
AND operation
between channels.
Example:
V1 and V2 =
Require V1 and V2,
ignore V3
→ 00 011 011
Bits 2:0 can be
used to build logical
OR operation
between channels.
Example:
V1 or V2 = Disable
V3 → 00 000 011
SCA3060 Series
16/ 31
Rev B