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MPR121QR2 датащи(PDF) 50 Page - Freescale Semiconductor, Inc

номер детали MPR121QR2
подробное описание детали  Proximity Capactive touch Senosr controller
PDF  57 Pages
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производитель  FREESCALE [Freescale Semiconductor, Inc]
домашняя страница  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MPR121QR2 датащи(HTML) 50 Page - Freescale Semiconductor, Inc

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MPR121
Sensors
50
Freescale Semiconductor
AN3944: MPR121 Quick Start Guide
INTRODUCTION
The MPR121 is Freescale Semiconductor’s top of the line touch sensor and can fit into a wide range of applications. These
applications can all be accommodated by having a device a with a very large range of flexibility. While all of these added features
can allow for a wide range of flexibility, they can also add an unnecessary layer of complication. For advanced users who want
to do more than basic touch detection, additional information can be found in other application notes.
To start, the device is configured through an I2C serial interface. The following table lists the registers that are initialized. The
order they are written in is not significant except that register 0x05E, the Electrode Configuration Register must be written last.
Register Address
Register Name
Value
Application Note
Section
0x2B
MHD Rising
0x01
AN3891
A
0x2C
NHD Amount Rising
0x01
AN3891
A
0x2D
NCL Rising
0x00
AN3891
A
0x2E
FDL Rising
0x00
AN3891
A
0x2F
MHD Falling
0x01
AN3891
B
0x30
NHD Amount Falling
0x01
AN3891
B
0x31
NCL Falling
0xFF
AN3891
B
0x32
FDL Falling
0x02
AN3891
B
0x41
ELE0 Touch Threshold
0x0F
AN3892
C
0x42
ELE0 Release Threshold
0x0A
AN3892
C
0x43
ELE1 Touch Threshold
0x0F
AN3892
C
0x44
ELE1 Release Threshold
0x0A
AN3892
C
0x45
ELE2 Touch Threshold
0x0F
AN3892
C
0x46
ELE2 Release Threshold
0x0A
AN3892
C
0x47
ELE3 Touch Threshold
0x0F
AN3892
C
0x48
ELE3 Release Threshold
0x0A
AN3892
C
0x49
ELE4 Touch Threshold
0x0F
AN3892
C
0x4A
ELE4 Release Threshold
0x0A
AN3892
C
0x4B
ELE5 Touch Threshold
0x0F
AN3892
C
0x4C
ELE5 Release Threshold
0x0A
AN3892
C
0x4D
ELE6 Touch Threshold
0x0F
AN3892
C
0x4E
ELE6 Release Threshold
0x0A
AN3892
C
0x4F
ELE7 Touch Threshold
0x0F
AN3892
C
0x50
ELE7 Release Threshold
0x0A
AN3892
C
0x51
ELE8 Touch Threshold
0x0F
AN3892
C
0x52
ELE8 Release Threshold
0x0A
AN3892
C
0x53
ELE9 Touch Threshold
0x0F
AN3892
C
0x54
ELE9 Release Threshold
0x0A
AN3892
C
0x55
ELE10 Touch Threshold
0x0F
AN3892
C
0x56
ELE10 Release Threshold
0x0A
AN3892
C
0x57
ELE11 Touch Threshold
0x0F
AN3892
C
0x58
ELE11 Release Threshold
0x0A
AN3892
C
0x5D
Filter Configuration
0x04
AN3890
D
0x5E
Electrode Configuration
0x0C
AN3890
E
0x7B
AUTO-CONFIG Control Register 0
0x0B
AN3889
F



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