CAP1214 datasheet(55/107 Pages) MICROCHIP

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Multiple Channel Capacitive Touch Sensor and LED Driver

Datasheet

SMSC CAP1214

Revision 1.0 (08-30-10)

DATASHEET

6.17

Group Configuration Register 1

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

8 - 14 that are included in the group.

Bits 7-4 - RPT_RATE_PH[3:0] - (default 0100b) Determines the time duration between interrupt

assertions when auto repeat is enabled. This setting applies when a press and hold condition is

detected on the on the Grouped Sensors (see Section 5.5). The resolution is 35ms the range is from

35ms to 560ms as shown in Table 6.23.

Bits 3- 0 - M_PRESS[3:0] - (default 0111b) - Determines the minimum amount of time that a sensor

in the Group must detect a button press to differentiate between a tap and a press and hold. If the

sensor detects a touch for longer than the M_PRESS[3:0] settings, a Press and Hold event is detected.

This has no effect on whether a slide is detected within the group. If a slide is detected before or after

the press has been confirmed, it is treated as a separate event. If a sensor detects a touch for less

than or equal to the M_PRESS[3:0] settings, a Tap event is detected.

The resolution is 35ms the range is from 35ms to 560ms as shown in Table 6.25.

280ms

315ms

350ms

385ms

420ms

455ms

490ms

525ms

560ms

Table 6.24 Group Configuration Register 1

ADDR

R/W

DEFAULT

23h

R/W

Group

Configuration 1

RPT_RATE_PH[3:0]

M_PRESS[3:0]

47h

Table 6.25 M_PRESS Bit Decode

M_PRESS[3:0]

M_PRESS TIME

35ms

70ms

Table 6.23 RPT_RATE_B / SL / PH Bit Decode (continued)

RPT_RATE_B / RPT_RATE_SL / RPT_RATE_PH

INTERRUPT REPEAT

RATE

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