STMPE821_09 STMICROELECTRONICS [STMicroelectronics], STMPE821_09 Datasheet - Page 30

• Manufacturer Part Number: STMPE821_09
• Description: 8-channel capacitive touch key controller
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Capacitive touch module registers
CTRL
Address:
Type:
Reset:
Description:
30/55
7
[7:4] RESERVED
[3] F2A:
[2] HDC_U:
[1] HDC_C:
[0] HOLD:
6
RESERVED
0x25
R/W
0x00
Control
Write '1' to force device to remain in ACTIVE state at all times
Write '1' to perform unconditional host driven calibration.
Cleared to '0' when calibration is completed
Only applicable HOLD is '1'
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' to enable ETC
'1' to disable ETC
5
4
Control
F2A
3
HDC_U
2
HDC_C
1
STMPE821
HOLD
0