MPR121_10 FREESCALE [Freescale Semiconductor, Inc], MPR121_10 Datasheet - Page 37
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MPR121_10
Manufacturer Part Number
MPR121_10
Description
Proximity Capactive touch Senosr controller
Manufacturer
FREESCALE [Freescale Semiconductor, Inc]
Datasheet
1.MPR121_10.pdf
(57 pages)
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Sensors
Freescale Semiconductor
TOUCH THRESHOLD REGISTER
RELEASE THRESHOLD REGISTER
Table 31. Touch Threshold Register Field Descriptions
Table 32. Release Threshold Register Field Descriptions
Reset:
Reset:
Field
Field
RTH
TTH
7:0
7:0
W
W
R
R
7
0
7
0
= Unimplemented
= Unimplemented
Touch Threshold – The Touch Threshold Byte sets the trip point for detecting a
touch.
00000000 Encoding 0
~
11111111 Encoding 255
Release Threshold – The Release Threshold Byte sets the trip point for detecting
a touch.
00000000 Encoding 0
~
11111111 Encoding 255
6
0
6
0
Figure 44. Release Threshold Register
Figure 43. Touch Threshold Register
5
0
5
0
4
0
4
0
RTH
TTH
Description
Description
3
0
3
0
2
0
2
0
1
0
1
0
0
0
0
0
MPR121
37
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