AT42QT1060_14 Datasheet, PDF (18/36 Pages) ATMEL Corporation – Six-channel QTouch Touch Sensor IC

5.5 Address 4: Detection Status
Table 5-5. Detection Status
Address
b7
b6
4
CAL Reserved
b5
KEY5
b4
KEY4
b3
KEY3
b2
KEY2
b1
KEY1
b0
KEY0
CAL: a 1 indicates that the QT1060 is currently calibrating.
KEY0 – 5: bits 0 to 5 indicate which keys are in detection, if any; touched keys report as 1, untouched or disabled
keys report as 0.
5.6 Address 5: Input Port Status
Table 5-6. Input Port Status
Address
b7
b6
b5
b4
b3
b2
b1
b0
5
Reserved INPUT 6 INPUT 5 INPUT 4 INPUT 3 INPUT 2 INPUT 1 INPUT 0
INPUT 0 – 6: these bits indicate the state of the I/O lines that are configured as inputs; 1 indicating logic 1 on the
input, 0 indicating logic 0. The bits corresponding to any keys configured as outputs read as 0.
5.7 Address 12: Calibrate
Table 5-7. Calibrate
Address
b7
b6
b5
b4
b3
b2
b1
b0
12
Writing a nonzero value forces a calibration
Writing any nonzero value into this address triggers the device to start a calibration cycle. The CAL flag in the status
register is set when begun and cleared when the calibration has finished.
5.8 Address 13: Reset
Table 5-8. Reset
Address
b7
b6
b5
b4
b3
b2
b1
b0
13
Writing a nonzero value forces a reset
Writing any nonzero value to this address triggers the device to reset.
AT42QT1060 [DATASHEET] 18
9505G–AT42–05/2013