5.3.8 AT24MAC402
SAM E54 Xplained Pro features one external AT24MAC402 serial EEPROM with a EIA-48 MAC address connected to the SAM E54 through I2C. This device contain a MAC address for use with the Ethernet interface. The table below lists all I/O-lines connected to the ATMAC402 device.
Info: The I2C
EEPROM address is 0x56 and extended address is 0x5E (7-bit, right adjusted without
R/W bit).
| AT24MAC402 pin | SAM E54 pin | Function | Shared functionality |
|---|---|---|---|
| 1 [A0] | - | Address bit 0 config (Pulled to GND) | - |
| 2 [A1] | - | Address bit 1 config (Pulled to VCC) | - |
| 3 [A2] | - | Address bit 2 config (Pulled to VCC) | - |
| 4 [GND] | - | GND | - |
| 5 [SDA] | PD08 | SERCOM7 PAD[0] I2C SDA | ATECC508, PCC, EXT2, EXT3, and EDBG DGI |
| 6 [SCL] | PD09 | SERCOM7 PAD[1] I2C SCL | ATECC508, PCC, EXT2, EXT3, and EDBG DGI |
| 7 [WP] | - | Write Protect (Pulled to GND) | - |
| 8 [VCC] | - | VCC_TARGET_P3V3 | - |
| 9 [PAD] | - | - | - |