Definitive Guide to Arm Cortex-M23 and Cortex-M33 Processors

Chapter 8: Exceptions and interrupts—Architecture overview

Abstract

Architecture topics related to exception and interrupt handling including exception types, priority levels, vector table, EXC_RETURN (exception return), stack frame formats, and behaviors of exception and interrupt handling.

Keywords

Exception types; Priority levels; Vector table; EXC_RETURN (exception return); Stack frame; TrustZone; Exception sequences

8.1: Overview of exceptions and interrupts

8.1.1: The need for exceptions and interrupts

Interrupts and exceptions are common features available on all modern processor systems, from simple microcontrollers to high-end computers. For microcontroller systems, interrupts are important for peripheral operations: ...