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

Chapter 15: Coprocessor interface and Arm Custom Instructions

Abstract

This chapter covers the coprocessor support and Arm Custom Instructions features in the Cortex-M33 processor. These features enable chip designers to add hardware accelerators that are closely coupled to the processor. The chapter explains how software developers can access the coprocessor and Arm Custom Instructions using intrinsic functions, and what that they need to do to enable these features.

Keywords

Coprocessor; Arm Custom Instructions; Intrinsic functions; Custom Datapath Extension

15.1: Overview

15.1.1: Introduction

The coprocessor interface and the Arm® Custom Instructions are both optional features on the Arm Cortex®-M33 processor to enable silicon ...