Table 5-27. DGI Interface Connections when using I
2
C
SAM E54 pin Function Shared functionality
PD08 SERCOM7 PAD[0] SDA (Data line) AT24MAC402, ATECC508, PCC, EXT2,
and EXT3
PD09 SERCOM7 PAD[1] SCL (Clock line) AT24MAC402, ATECC508, PCC, EXT2,
and EXT3
Four GPIO lines are connected to the Embedded Debugger. The EDBG can monitor these lines and time
stamp pin value changes. This makes it possible to accurately time stamp events in the SAM E54
application code. For further information on how to configure and use the GPIO monitoring features, see
Data Visualizer and the EDBG User Guide.
Table 5-28. GPIO Lines Connected to the EDBG
SAM E54 pin Function Shared functionality
PC16 GPIO0 PDEC
PC17 GPIO1 PDEC
PC18 GPIO2 PDEC and User LED
PB31 GPIO3 User SW0
5.4.4 XAM Configuration
On the SAM E54 Xplained Pro the MCU and the MCU peripherals (e.g. extensions) are powered by its
own regulator as shown in the figure below. All other parts of the board, mainly embedded debugger and
accompanying Xplained Pro Analog Module (XAM), are powered from a separate regulator. The current
to the MCU and peripherals can be measured by connecting them to the XAM output through jumper
settings.
SAM E54 Xplained Pro
© 2017 Microchip Technology Inc.
DS70005321A-page 31
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