Datasheet

750
SAM4S Series [DATASHEET]
11100F–ATARM–29-Jan-14
36.6.3 Interrupt
The USART interrupt line is connected on one of the internal sources of the Interrupt Controller. Using the USART
interrupt requires the Interrupt Controller to be programmed first. Note that it is not recommended to use the USART
interrupt line in edge sensitive mode.
Table 36-4. Peripheral IDs
Instance ID
USART0 14
USART1 15