The SAM-BA Boot Assistant supports serial communication via the UART
or USB device port:
- UART0 hardware requirements: None
- USB Device hardware requirements: Eexternal crystal or external clock (see
Note) with a frequency of 12 MHz or 16 MHz
Note: Must be 2500 ppm and VDDIO square wave signal.
Table 1. Pins Driven During SAM-BA Boot Program Execution
| Peripheral |
Pin |
| UART0 |
URXD0 |
| UART0 |
UTXD0 |