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AT42QT1060 [DATASHEET]

9505H–AT42–04/2015

5.5

Address 4: Detection Status

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

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

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

Writing any nonzero value to this address triggers the device to reset.

Table 5-5.

Detection Status

Address

b7

b6

b5

b4

b3

b2

b1

b0

4

CAL

Reserved

KEY5

KEY4

KEY3

KEY2

KEY1

KEY0

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

Table 5-7.

Calibrate

Address

b7

b6

b5

b4

b3

b2

b1

b0

12

Writing a nonzero value forces a calibration

Table 5-8.

Reset

Address

b7

b6

b5

b4

b3

b2

b1

b0

13

Writing a nonzero value forces a reset