sca3000-e05pwb VTI Hamlin, sca3000-e05pwb Datasheet - Page 21

• Manufacturer Part Number: sca3000-e05pwb
• Description: Sca3000 Series 3-axis Accelerometer
• Manufacturer: VTI Hamlin

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Address value: 00010
Register name: MD_CTRL, Motion Detector control (Indirect access via CTRL_SEL)
Address value: 00011
Register name: MD_Y_TH, Motion Detector Y-threshold (Indirect access via CTRL_SEL)
Address value: 00100
Register name: MD_X_TH, Motion Detector X-threshold (Indirect access via CTRL_SEL)
Address value: 00101
Register name: MD_Z_TH, Motion Detector Z-threshold (Indirect access via CTRL_SEL)
Initial values for registers MD_X_TH, MD_Y_TH and MD_Z_TH vary with SCA3000 product types.
Initial value is:
The bit level descriptions for registers MD_X_TH, MD_Y_TH and MD_Z_TH are presented in,
Table 11 ...Table 14 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
•
•
10h for SCA3000-D01, SCA3000-D02, SCA3000-E01 and SCA3000-E02
08h for SCA3000-E04 and SCA3000-E05
10h or 08h
10h or 08h
10h or 08h
Value
Initial
0
0
0
1
1
1
Value
Value
Value
Initial
Initial
Initial
REQ_Z
REQ_X
REQ_Y
Name
EN_Y
EN_Z
EN_X
Doc.Nr. 8257300A.07
Name
Name
Name
Y_TH
X_TH
Z_TH
Description
Reserved
1 – Require trigger on Z-channel
0 – Not required
1 – Require trigger on X-channel
0 – Not required
1 – Require trigger on Y-channel
0 – Not required
1 – Enable trigger on Z-channel
0 – Not required
1 – Enable trigger on X-channel
0 – Not required
1 – Enable trigger on Y-channel
0 – Not required
Description
Threshold for Y-acceleration change when MD
is used.
Description
Threshold for X-acceleration change when MD
is used.
Description
Threshold for Z-acceleration change when MD is
used.
Note
Bits 5:3 can be
used to build logical
AND operation
between channels.
Example:
X and Y = Require
X and Y, ignore Z
→ 00 011 011
Bits 2:0 can be
used to build logical
OR operation
between channels.
Example:
X or Y = Disable Z
→ 00 000 011
SCA3000 Series
Rev.A.07
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