CAP1066 datasheet(40/71 Pages) SMSC

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6 Channel Capacitive Touch Sensor with 6 LED Drivers

Datasheet

Revision 1.1 (08-05-09)

SMSC CAP1066

DATASHEET

The Sensor Enable registers determine whether a Capacitive Touch Sensor input is included in the

sampling cycle. The length of the sampling cycle is not affected by the number of sensors measured.

Bit 5 - CS6_EN - Enables the CS6 input to be included during the sampling cycle.

‘0’ - The CS6 input is not included in the sampling cycle.

‘1’ (default) - The CS6 input is included in the sampling cycle.

Bit 4 - CS5_EN - Enables the CS5 input to be included during the sampling cycle.

Bit 3 - CS4_EN - Enables the CS4 input to be included during the sampling cycle.

Bit 2 - CS3_EN - Enables the CS3 input to be included during the sampling cycle.

Bit 1 - CS2_EN - Enables the CS2 input to be included during the sampling cycle.

Bit 0 - CS1_EN - Enables the CS1 input to be included during the sampling cycle.

5.8

Sensor Configuration Register

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

- 6.

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

to be touched until the Capacitive Touch sensor is recalibrated as shown in Table 5.12.

Table 5.11 Sensor Configuration Register

ADDR

R/W

B5B4B3B2B1B0

DEFAULT

22h

R/W

Sensor

Configuration

MAX_DUR[3:0]

RPT_RATE[3:0]

A4h

CAP1066 Datasheet(PDF) 40 Page - SMSC Corporation