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

Chapter 6

Memory System

Abstract

This chapter covers descriptions of the memory map, overview of the bus interface, endianness of the memory system, data alignment, bit band feature, memory access permission, memory attributes, exclusive memory accesses and memory barriers.

Keywords

Memory; alignment; bit band; memory access permission; memory type; endianess; memory map; memory attributes; exclusive access; boot loader

Chapter Outline

6.1 Overview of memory system features

6.2 Memory map

6.3 Connecting the processor to memory and peripherals

6.4 Memory requirements

6.5 Memory endianness

6.6 Data alignment and unaligned data access support

6.7 Bit-band operations

6.7.1 Overview

6.7.2 Advantages of bit-band operations

6.7.3 Bit-band operation of ...