參數(shù)資料
型號(hào)： DEMOMPR031
廠商： Freescale Semiconductor
文件頁(yè)數(shù)： 2/33頁(yè)
文件大小： 0K
描述： BOARD DEMO FOR MPR031 CTLR
產(chǎn)品培訓(xùn)模塊： MPR03x - Low-Power Proximity Sensors
視頻文件： DEMOPR031 Touch Sensor
標(biāo)準(zhǔn)包裝： 1
傳感器類型： 觸摸，電容式
接口： I²C
電源電壓： 1.71 V ~ 2.75 V
嵌入式： 否
已供物品： 板
已用 IC / 零件： MPR031
產(chǎn)品目錄頁(yè)面： 2808 (CN2011-ZH PDF)
相關(guān)產(chǎn)品： MPR031EPR2DKR-ND - IC CTLR TOUCH SENSOR 8-DFN
MPR031EPR2CT-ND - IC CTLR TOUCH SENSOR 8-DFN
MPR031EPR2TR-ND - IC CTLR TOUCH SENSOR 8-DFN
MPR03X
Sensors
10
Freescale Semiconductor
4.3
Run1 Mode
In Run1 Mode, the MPR03X monitors 1, 2, or 3 electrodes which are connected to a user defined array of touch pads. When only
1 or 2 electrodes are selected, the IRQ/ELE2 pin is automatically configured as an open drain interrupt output.
When 3 electrodes are selected in Run1 Mode, the IRQ/ELE2 pin becomes the third electrode input, ELE2 (Figure 14).
Figure 14. Electrode/Pad Connections in Run Mode
4.4
Run2 Mode
In Run2 Mode, all enabled electrodes act as a single electrode by internally connecting the electrode pins together. The entire
surface of all the touch pads is used as a single pad, increasing the total area of the conductor.
When 2 electrodes are selected in Run2 Mode, the IRQ/ELE2 pin is automatically configured as an open drain interrupt output.
When 3 electrodes are selected, the IRQ/ELE2 pin becomes the third electrode input, ELE2 (Figure 15).
Figure 15. Electrode/Pad Connections in Area Detection Mode
4.5
The Electrode Configuration Register manages the configuration of the Electrode outputs in addition to the mode of the part. The
address of the Electrode Configuration Register is 0x44.
Figure 16. Electrode Configuration Register
7
6
5
4
3210
R0
CalLock
ModeSel
EleEn
W
Reset:
0
0000
= Unimplemented
ELE0
ELE1
Capacitance
Measurement
Engine
Filters
and
Touch
Detection
ELE2
3
1
2
Run1 Mode with 3 Electrodes
INT
Interrupt
Run1 Mode with 2 Electrodes
ELE1
ELE0
Capacitance
Measurement
Engine
Filters
and
Touch
Detection
1
2
INT
Interrupt
Run1 Mode with 1 Electrode
ELE0
Capacitance
Measurement
Engine
Filters
and
Touch
Detection
1
ELE0
ELE1
INT
Capacitance
Measurement
Engine
Filters
and
Touch
Detection
ELE2
Interrupt
Run2 Mode to 2 Pads
3
1
2
ELE1
ELE0
Capacitance
Measurement
Engine
Filters
and
Touch
Detection
Run2 Mode to 3 Pads
1
2
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