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STMPE321 Datasheet(PDF) 27 Page - STMicroelectronics

Part # STMPE321
Description  3-channel capacitive touchkey controller
PDF  40 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STMPE321 Datasheet(HTML) 27 Page - STMicroelectronics

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STMPE321
Capacitive touch module registers
Doc ID 15791 Rev 3
27/40
CTRL
Control
Address:
0x25
Type:
R/W
Reset:
0x00
Description:
Control
76
543
2
1
0
RESERVED
F2A
HDC_U
HDC_C
HOLD
[7:4] RESERVED
[3] F2A:
Write '1' to force device to remain in ACTIVE state at all times
[2] HDC_U:
Write '1' to perform unconditional host driven calibration
Cleared to '0' when calibration is completed
Only applicable HOLD is '1'
[1] HDC_C:
Write '1' to perform conditional host driven calibration
Calibration is performed if and only if no touch is detected
Cleared to '0' when calibration is completed
Only applicable HOLD is '1'
[0] HOLD:
'0' to enable ETC
'1' to disable ETC



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