Silicon Laboratories CPT213B User Manual page 8

5. Peripherals
The starter kit has a set of peripherals that showcase some of the features of the CPT213B device.
Be aware that some CPT213B I/O routed to peripherals are also routed to the breakout pads. This must be taken into consideration
when using the breakout pads for your application.
5.1 Capacitive Sense Touch Pads
The kit has 13 capacitive sense touch pads. The touch pads are connected in order to pins CS00 - CS12 of the CPT213B
SLEXP8019A. After the touch pad inputs have been processed by the touch qualification engine, the CPT213B SLEXP8019A will out-
put the result through I2C.
The capacitive sense inputs can be configured for different thresholds, debounce counter values, scan periods, gain, scanning meth-
ods, touch time-outs, and touch exclusiveness using the [Xpress Configurator] in Simplicity Studio. The device outputs can also be
configured for different pin polarities and drive strength.
See the CPT213B SLEXP8019A Data Sheet for more detailed information on the different configurations.
CS00
CS01
CS02
CS03
CS04
CS05
CS06
CS07
CS08
CS09
CS10
CS11
CS12
CPT213B
Device
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CS00
CS01
CS02 CS00
CS03
CS04
CS05
CS06
CS04
CS07
CS08
CS09
CS10 CS09
CS11
CS12
Figure 5.1. Capacitive Sense Touch Pads
UG294: CPT213B SLEXP8019A Kit User's Guide
CS01 CS02 CS03
CS05 CS06 CS07
CS10 CS11 CS12
Peripherals
CS08
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