CAP1208 datasheet(56/67 Pages) MICROCHIP

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8-Channel Capacitive Touch Sensor

Datasheet

DS00001570B-page 56

 2014 Microchip Technology Inc.

The Power Button Configuration Register controls the length of time that the designated power button

must indicate a touch before an interrupt is generated and the power status indicator is set (see

Section 4.5, "Power Button").

Bit 6 - STBY_PWR_EN - Enables the power button feature in the Standby state.



‘0’ (default) - The Standby power button circuitry is disabled.



‘1’ - The Standby power button circuitry is enabled.

Bits 5 - 4 - STBY_PWR_TIME[1:0] - Determines the overall time, as shown in Table 5.47, that the

power button must be held in the Standby state, in order for an interrupt to be generated and the PWR

bit to be set.

Bit 2 - PWR_EN - Enables the power button feature in the Active state.



‘0’ (default) - The power button circuitry is disabled in the Active state.



‘1’ -The power button circuitry is enabled in the Active state.

Bits 1 - 0 - PWR_TIME[1:0] - Determines the overall time, as shown in Table 5.47, that the power

button must be held in the Active state, in order for an interrupt to be generated and the PWR bit to

be set.

5.28

Sensor Input Calibration Registers

Table 5.47 Power Button Time Bits Decode

PWR_TIME[1:0] / STBY_PWR_TIME[1:0]

POWER BUTTON TOUCH HOLD TIME

280ms

560ms

1.12 sec (default)

2.24 sec

Table 5.48 Sensor Input Calibration Registers

ADDR

R/W

DEFAULT

B1h

Sensor Input 1

Calibration

CAL1_9

CAL1_8

CAL1_7

CAL1_6

CAL1_5

CAL1_4

CAL1_3

CAL1_2

00h

B2h

Sensor Input 2

Calibration

CAL2_9

CAL2_8

CAL2_7

CAL2_6

CAL2_5

CAL2_4

CAL2_3

CAL2_2

00h

B3h

Sensor Input 3

Calibration

CAL3_9

CAL3_8

CAL3_7

CAL3_6

CAL3_5

CAL3_4

CAL3_3

CAL3_2

00h

B4h

Sensor Input 4

Calibration

CAL4_9

CAL4_8

CAL4_7

CAL4_6

CAL4_5

CAL4_4

CAL4_3

CAL4_2

00h

B5h

Sensor Input 5

Calibration

CAL5_9

CAL5_8

CAL5_7

CAL5_6

CAL5_5

CAL5_4

CAL5_3

CAL5_2

00h

B6h

Sensor Input 6

Calibration

CAL6_9

CAL6_8

CAL6_7

CAL6_6

CAL6_5

CAL6_4

CAL6_3

CAL6_2

00h

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