Cortex Debug Connector

SAM E54 Xplained Pro has a 10-pin 50-mil Cortex Debug Connector with SWD that can be used to attach external debuggers to the ATSAME54P20A. Microchip debugging tools like the Atmel-ICE and Power Debugger can connect directly to this connector.

Table 1. Cortex Debug Connector
Cortex Debug Connector pin Pin/Net Function Shared functionality
1 [VCC] VCC_TARGET_P3V3 ATSAME54P20A voltage  
2 [SWDIO/TMS] PA31 SW bidirectional data TRACE and EDBG SWD
3 [GND] GND Ground  
4 [SWCLK/TCK] PA30 SW clock signal TRACE and EDBG SWD
5 [GND] GND Ground  
6 [SWO/TDO] PB30 SW output TRACE and EDBG SWD
7 [KEY] - -  
8 [NC/TDI] - -  
9 [GNDDetect] GND Ground  
10 [nRESET] RESETN Target reset signal RST BTN, TRACE, and EDBG SWD