The Configuration Register allows a user to reset the part, adju" />
參數(shù)資料
型號： MPR083QR2
廠商： Freescale Semiconductor
文件頁數(shù)： 6/35頁
文件大?。?/td> 0K
描述： IC CTLR TOUCH SENSOR PROX 16-QFN
產(chǎn)品培訓模塊： Sensor Toolbox
標準包裝： 2,500
類型： 電容性
輸入數(shù)/鍵： 8 個滑塊
評估套件： 可供
數(shù)據(jù)接口： I²C，串行
電源電壓： 1.8 V ~ 3.6 V
電流 - 電源： 1.62mA
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 16-VQFN 裸露焊盤
供應商設(shè)備封裝： 16-QFN-EP（5x5）
包裝： 帶卷 (TR)
配用： DEMOMPR083-ND - BOARD DEMO FOR MPR083 CTLR
KITMPR083EVM-ND - KIT EVAL 8POSITION ROTARY TOUCH
MPR083
Sensors
14
Freescale Semiconductor
4.7
Configuration Register
The Configuration Register allows a user to reset the part, adjust Interrupt settings, and change the mode. The I2C slave address
of the Configuration Register is 0x0A.
Figure 17. Configuration Register
4.8
Attention Pin
The Attention (ATTN) pin allows a user to externally set the Configuration Register’s DCE bit high. This is latched on a high to
low transition. Since the current mode of the device is enabled through the DCE this will cause duty cycling to be disabled and
change the current mode from Run2 to Run1, or Stop2 to Stop1 (depending on the previous state).
When in Run2 or Stop2 modes this is the only way to enable the I2C communication.
7
6
543210
R
IRQR
RST
0
DCE
IRQEN
RUNE
W
Reset:
0
010100
= Unimplemented
Table 10. Configuration Register Field Descriptions
Field
Description
7:5
IRQR
Interrupt Rate – The Interrupt Rate Field selects the amount to multiply the MTP by
to determine the minimum delay between sequential Interrupts.
000 Encoding 0 – Sets the IRQR multiplication factor to 1
~
111 Encoding 7 – Sets the IRQR multiplication factor to 8
4
RST
Reset – Asserts a global reset of the sensor controller.
0 Reset Asserted
1 Reset Not Asserted
2
DCE
Duty Cycle Enable – The Duty Cycle Enable bit enables or disables duty cycling on
the MPR083. This bit is active low.
0 Duty Cycle Enabled (2 modes)
1 Duty Cycle Disabled (1 modes)
1
IRQEN
Interrupt Enable – The Interrupt Enable bit enables or disables the IRQ
Functionality.
0 IRQ Disabled
1 IRQ Enabled
0
RUNE
Run Mode Enable – The Run Mode Enable bit enables or disables scanning of the
electrodes for touch detection. This bit is active high.
0 Electrode Scanning Disabled (Stop modes)
1 Electrode Scanning Enabled (Run modes)
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