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What you will learn

Understand the architecture of ARM Cortex-M Processors

Understand the applications of ARM Processors

Understand and Write Assembly Language Programs using ISA of ARM Cortex-M

Interpret the usage of different registers and memory system features in ARM Cortex-M

Description

Hi all! Welcome to my course on ‘Introduction to ARM Cortex M3 and M4 Processors’. This course will help you gain knowledge in the architecture, registers, features of ARM Cortex Processors. The other half of the course will help you understand the instruction set of ARM Cortex-M so that you’ll be able to write programs in assembly language.

The Architecture part covers

1. Features of ARM Processors.

2. Versions of ARM

3. Applications of ARM Cortex-M

4. Specific Features of ARM Cortex.

5. Three stage pipeline of Cortex.

6. Registers – General Purpose, Special Purpose in ARM Cortex M3

7. Memory Features.

8. Bit Band Region.

9. Little Endian, Big Endian Architecture.

10. The Thumb-2 Technology

11. Difference between ARM and Thumb Instructions in Classical ARM Processors.

12. Stack Memory

13. Interrupts/Exceptions

14. Interrupt Masking

The Instruction set part covers

• Moving data within the processor

• Memory accesses


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• Arithmetic operations

• Logic operations

• Shift and Rotate operations

• Conversion (extend and reverse ordering) operations

• Bit field processing instructions

• Program flow control (branch, conditional branch, conditional execution, and

function calls)

• Multiply accumulate (MAC) instructions

• Divide instructions

• Memory barrier instructions

• Exception-related instructions

• Sleep mode-related instructions

• Other functions

What are you waiting for? I’ll see you there in my course.

The Cortex-M3 and Cortex-M4 are processors designed by ARM. The Cortex-M3 processor was the first of the Cortex generation of processors, released by ARM in 2005 (silicon products released in 2006).

The Cortex-M4 processor was released in 2010 (released products also in 2010). The Cortex-M3 and Cortex-M4 processors use a 32-bit architecture. Internal registers in the register bank, the data path, and the bus interfaces are all 32 bits wide. The Instruction Set Architecture (ISA) in the Cortex-M processors is called the Thumb ISA and is based on Thumb-2 Technology which supports a mixture of 16-bit and 32-bit instructions

English
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Content

Architecture and Features

Introduction to ARM Microprocessor
Three important features of ARM Processor
Versions and Applications of ARM Processors
Three Stage Pipeline in Cortex M3
Operation Modes of Cortex M3 and M4
The Thumb-2 Technology

Registers

General Purpose Registers in ARM
The Stack Pointer, Stack Memory, PUSH and POP
The Link Register
Special Register – Program Status Registers – APSR, IPSR, EPSR
Interrupts, Interrupt Masking, IM Registers
The Control Register

Features of Memory Systems in ARM

Address Bus, Memory Space
The Memory Map
The Bit Band Region Feature in Cortex M3
Little Endian and Big Endian Architecture

The ARM Cortex M3 and M4 Instruction Set

The Instruction Set Architecture, Types of Instructions
Moving data within the processor
Memory Accesses Instructions – Modes of Indexing, Offset
Load and Store of Multiple Words
Arithmetic Instructions – Addition
Arithmetic Instructions – Subtraction
Multiplication and Division Instructions
Multiply and Accumulate (MAC) Instruction’
Logical Instructions
Shift and Rotate Instructions
Data Conversion Instructions – Signed and Unsigned Extension
Reverse Byte Instructions
Program to add two 16 bit numbers
Bit Field Processing Instructions – BFC, RBIT
Compare and Test instructions
Program Flow Control Instructions