Question: what is nvic in microcontroller?
Answer: NVIC Overview As we've seen, the Nested Vectored Interrupt Controller, or NVIC, is an integrated part of the Cortex-M3 processor. It is closely linked to the Cortex-M3 CPU core logic. Its control registers are accessible as memory-mapped devices. ... In addition, the NVIC also has a Nonmaskable Interrupt (NMI) input.