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ARM Cortex-M4 User Manual

ARM Cortex-M4
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Copyright © 2010 ARM. All rights reserved.
ARM DUI 0553A (ID121610)
Cortex
-M4 Devices
Generic User Guide

Table of Contents

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ARM Cortex-M4 Specifications

General IconGeneral
ArchitectureARMv7-M
DSP InstructionsYes
Instruction SetThumb-2
Pipeline Stages3-stage
InterruptsNested Vectored Interrupt Controller (NVIC)
Floating Point UnitOptional
Debug InterfaceJTAG, SWD
Power ConsumptionImplementation dependent, typically low power
Operating Voltage1.8V to 3.3V
Memory Protection UnitOptional (8 regions)

Summary

Introduction to Cortex-M4

Cortex-M4 Processor and Core Peripherals Overview

Introduces the Cortex-M4 processor, its features, and core peripherals.

Cortex-M4 Processor Details

Programmers Model

Describes processor modes, privilege levels, and stack usage.

Memory Model

Details the processor memory map, access behavior, and bit-banding.

Exception Model

Explains exception states, types, handlers, and priorities.

Fault Handling

Covers fault types, escalation, and status registers.

Power Management

Describes sleep modes, wakeup mechanisms, and power-saving features.

Cortex-M4 Instruction Set Reference

Instruction Set Summary

Lists and briefly describes supported Cortex-M4 instructions.

Memory Access Instructions

Details instructions for loading and storing data from memory.

General Data Processing Instructions

Explains arithmetic, logical, and shift operations.

Multiply and Divide Instructions

Covers instructions for multiplication and division operations.

Floating-Point Instructions

Details instructions for FPU operations, if implemented.

Miscellaneous Instructions

Covers breakpoint, barrier, and state-changing instructions.

Cortex-M4 Peripherals

About the Cortex-M4 Peripherals

Introduces the core peripherals and their address map.

Nested Vectored Interrupt Controller (NVIC)

Manages interrupts, priorities, and exception handling.

System Control Block

Manages system configuration, exceptions, and fault status.

System Timer (SysTick)

Provides a system timer for periodic interrupts and timing.

Optional Memory Protection Unit (MPU)

Controls memory access permissions and region attributes.

Floating Point Unit (FPU)

Details FPU registers and operations for floating-point arithmetic.

Cortex-M4 Implementation Options

Cortex-M4 Implementation Options Overview

Lists configuration options determined by the device manufacturer.

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