59.3.2 SAM-BA Boot

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 59-1. Pins Driven During SAM-BA Boot Program Execution
Peripheral	Pin
UART0	URXD0
UART0	UTXD0

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