The Definitive Guide to ARM® Cortex®-M3 and Cortex®-M4 Processors, 3rd Edition

Chapter 8

Exception Handling in Detail

Abstract

This chapter looks into the details of the interrupt/exception handling sequence including the details of automatic stacking and unstacking, exception return, and introduces the lazy stacking feature on the Cortex^®-M4 processor.

Keywords

EXC_RETURN; stack frame; stacking; unstacking; interrupt latency; tail-chaining; late arrival; pop pre-emption; lazy stacking

Chapter Outline

8.1 Introduction

8.1.1 About this chapter

8.1.2 Exception handlers in C

8.1.3 Stack frames

8.1.4 EXC_RETURN

8.2 Exception sequences

8.2.1 Exception entrance and stacking

8.2.2 Exception return and unstacking

8.3 Interrupt latency and exception handling optimization

8.3.1 What is interrupt latency?

8.3.2 Interrupts at multiple-cycle ...