CAP1005 datasheet(39/53 Pages) SMSC

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5 and 6 Channel Capacitive Touch Sensor

Datasheet

SMSC CAP1005 / CAP1006

Revision 1.1 (08-05-09)

DATASHEET

Bit 2 - CS3_INT_EN - Enables the interrupt pin to be asserted if a touch is detected on CS3

(associated with the CS3 status bit).

Bit 1 - CS2_INT_EN - Enables the interrupt pin to be asserted if a touch is detected on CS2

(associated with the CS2 status bit).

Bit 0 - CS1_INT_EN - Enables the interrupt pin to be asserted if a touch is detected on CS1

(associated with the CS1 status bit).

5.13

Repeat Rate Enable Register

The Repeat Rate Enable register determines the interrupt behavior of the buttons as described in

Section 4.3.1.

Bit 5 - CS6_RPT_EN - Enables the repeat rate for Capacitive Touch Sensor 6.

‘0’ - The repeat rate for CS6 is disabled. It will only generate an interrupt when a touch is detected

and when a release is detected no matter how long the touch is held for.

‘1’ (default) - The repeat rate for CS6 is enabled. In the case of a “touch” event, it will generate an

interrupt when a touch is detected and a release is detected. In the case of a “press and hold”

event, it will generate an interrupt when a touch is detected and at the repeat rate so long as the

touch is held. It will not generate an interrupt when a release is detected.

Bit 4 - CS5_RPT_EN - Enables the repeat rate for Capacitive Touch Sensor 5.

Bit 3 - CS4_RPT_EN - Enables the repeat rate for Capacitive Touch Sensor 4.

Bit 2 - CS3_RPT_EN - Enables the repeat rate for Capacitive Touch Sensor 3.

Bit 1 - CS2_RPT_EN - Enables the repeat rate for Capacitive Touch Sensor 2.

Bit 0 - CS1_RPT_EN - Enables the repeat rate for Capacitive Touch Sensor 1.

5.14

Multiple Touch Configuration Register

The Multiple Touch Configuration register controls the settings for the multiple touch detection circuitry.

These settings determine the number of simultaneous buttons that may be pressed before action is

taken.

Bit 7 - MULT_BLK_EN - Enables the multiple button blocking circuitry.

‘0’ - The multiple touch circuitry is disabled. The device will not block multiple touches.

‘1’ (default)- The multiple touch circuitry is enabled. The device will accept the number of touches

equal to programmed multiple touch threshold and block all others. It will remember which sensor

is valid and block all others until that sensor has been released.

Table 5.20 Repeat Rate Enable Register

ADDR

R/W

B4B3B2B1B0

DEFAULT

28h

R/W

Repeat Rate

Enable

CS6_

RPT_EN

CS5_

RPT_EN

CS4_

RPT_EN

CS3_

RPT_EN

CS2_

RPT_EN

CS1_

RPT_EN

3Fh

Table 5.21 Multiple Touch Configuration

ADDR

R/W

DEFAULT

2Ah

R/W

Multiple Touch

Config

MULT_

BLK_EN

B_MULT_T[1:0]

80h

CAP1005 Datasheet(PDF) 39 Page - SMSC Corporation

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