4.2.4 USB

The SAM L22 Xplained Pro has a Micro-USB connector for use with the SAM L22 USB module labeled as TARGET USB on the kit. To be able to detect when a target USB cable is connected in self-powered mode, a GPIO is used to detect the VBUS voltage on the connector.

Table 4-10. USB Connections
SAM L22 pinUSB function
PC26VBUS Detection
PA24USB D-
PA25USB D+