Silicon Laboratories CPT213B User Manual page 10

6.2 Expansion Header
On the left hand side of the board is a female expansion header to connect to a Silicon Labs EFM8 or EFM32 Starter Kit (STK). The
connecter contains a number of output and communication pins that can be used to communicate with the MCU on the STK. The re-
sults from the touch qualification engine are routed out to these pins. Additionally, the VMCU, 3V3, and 5V power rails are also impor-
ted. The figure below shows the pin assignment of the expansion header.
The CPT213B SLEXP8019A outputs using I2C.
The pin assignment of the expansion header and the peripheral function are listed below in the figure and table.
CPT213B pin
EB_SCL
EB_SDA
EB_INT
RSTb
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EB_I2C
NC
NC
NC
NC
NC
NC
CPT Pin
Figure 6.2. Expansion Header
Table 6.1. Pins available on Expansion Header
EXP Header pin number
15
16
6
10
UG294: CPT213B SLEXP8019A Kit User's Guide
EB_SDA
NC
NC
RSTb
NC
EB_INT
NC
Connectors
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