Datasheet

23
9596A–AT42–10/10
AT42QT1070
5.13 Address 55: Max On Duration
MAX ON DURATION: this is a 8-bit value which determines how long any key can be in touch
before it recalibrates itself.
A value of 0 turns Max On Duration off.
Default: 180 (160 ms x 180 = 28.8s)
5.14 Address 56: Calibrate
Writing any nonzero value into this address triggers the device to start a calibration cycle. The
CALIBRATE flag in the detection status register is set when the calibration begins and clears
when the calibration has finished.
5.15 Address 57: RESET
Writing any nonzero value to this address triggers the device to reset.
Table 5-13. Max Time On
Address b7 b6 b5 b4 b3 b2 b1 b0
55 MAX ON DURATION
Setting Time
0 Off
1 160 ms
2 320 ms
3 480 ms
4 640 ms
255 40.8s
Table 5-14. Calibrate
Address b7 b6 b5 b4 b3 b2 b1 b0
56 Writing a nonzero value forces a calibration
Table 5-15. RESET
Address b7 b6 b5 b4 b3 b2 b1 b0
57 Writing a nonzero value forces a reset