5.4.3 Data Gateway Interface
The Embedded Debugger features a Data Gateway Interface (DGI) by using either an SPI or I2C. The DGI can be used to send a variety of data from the ATSAME54P20A to the host PC. For further information on how to use the DGI interface, see Data Visualizer and the EDBG User Guide.
| SAM E54 pin | Function | Shared functionality |
|---|---|---|
| PD01 | GPIO SPI SS (Slave select) (SAM E54 is Master) | - |
| PC04 | SERCOM6 PAD[0] SPI MOSI (Master Out, Slave in) | EXT2 and EXT3 |
| PC07 | SERCOM6 PAD[3] SPI MISO (Master In, Slave Out) | EXT2 and EXT3 |
| PC05 | SERCOM6 PAD[1] SPI SCK (Clock Out) | EXT2 and EXT3 |
| 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.