CAP1014 datasheet(46/84 Pages) SMSC

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Multiple Channel Capacitive Touch Sensor and LED Driver

Datasheet

Revision 1.65 (08-11-09)

SMSC CAP1014

DATASHEET

Bit 1 - S2_EN - Enables the CS2 input to be included during the sampling cycle.

Bit 0 - S1_EN - Enables the CS1 input to be included during the sampling cycle.

5.16

Button Configuration Register

The Button Configuration Register controls timings associated with the Capacitive Sensor channels 1

- 7 that are not Grouped.

Bits 7 - 4 - MAX_DUR_B [3:0] - (default 1010b) - Determines the maximum time that a button is

allowed to be pressed until the Capacitive Touch sensor is recalibrated as shown in Table 5.23.

Bits 3 - 0 - RPT_RATE_B[3:0] - (default 0100b) Determines the time duration between interrupt

assertions when auto repeat is enabled. The resolution is 35ms the range is from 35ms to 560ms as

shown in Table 5.24.

Table 5.22 Button Configuration Register

ADDR

R/W

B5B4B3B2B1B0

DEFAULT

22h

R/W

Button

Configuration

MAX_DUR_B[3:0]

RPT_RATE_B[3:0]

A4h

Table 5.23 MAX_DUR_B and MAX_DUR_G Bit Decode

MAX_DUR_B[3:0] AND MAX_DUR_G[3:0]

TIME BEFORE

RECALIBRATION

560ms

840ms

1120ms

1400ms

1680ms

2240ms

2800ms

3360ms

3920ms

4480ms

5600ms

6720ms

7840ms

8906ms

10080ms

11200ms

CAP1014 Datasheet(PDF) 46 Page - SMSC Corporation

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