SWCU185F january 2018 – march 2023 CC1312R , CC1352P , CC1352R , CC2642R , CC2642R-Q1 , CC2652P , CC2652PSIP , CC2652R , CC2652RB , CC2652RSIP , CC2662R-Q1
An exception changes the normal flow of software control. The support for interrupts and system exceptions is implemented by using the built-in NVIC, which supports up to 240 external interrupt inputs. Besides the external interrupts, the Arm® Cortex®-M4F also services 16 predefined exception sources including Reset, NMI, and so on. The processor and the NVIC prioritize and handle all exceptions. The processor uses handler mode to handle all exceptions, except for reset. Software configures the actual priorities assigned to NVIC external interrupt inputs through registers.