830 Views

ARM Cortex-M23

History

 

The Cortex-M23 is a microcontroller core from ARM Holdings’ Cortex family of cores. It is a 32-bit processor with a Harvard architecture, meaning it has separate memory spaces for instructions and data. The Cortex-M23 was first introduced in 2017 as an upgrade to the Cortex-M3 and Cortex-M4 cores. It offers improved performance and additional features compared to its predecessor cores.

 

Architecture

 

The Cortex-M23 core is designed for microcontroller applications and is optimized for low power consumption. It has a Harvard architecture with separate memory spaces for instructions and data. The processor has a three-stage pipeline, with the stages being fetch, decode, and execute. The Cortex-M23 supports a wide range of memory types, including ROM, RAM, flash, and EEPROM. It also has a Memory Protection Unit (MPU) to enable memory protection and isolation.

 

Features

 

  • 32-bit processor with a Harvard architecture
  • Three-stage pipeline
  • Support for various memory types
  • Memory Protection Unit (MPU)
  • Low power consumption
  • Enhanced debug features

 

Benefits

 

  • Improved performance: The Cortex-M23 has a higher clock speed and a more efficient pipeline compared to its predecessor cores, resulting in improved performance.
  • Additional features: The Cortex-M23 has enhanced debug features, making it easier to debug and troubleshoot code. It also has a Memory Protection Unit (MPU) to enable memory protection and isolation.
  • Low power consumption: The Cortex-M23 is optimized for low power consumption, making it suitable for battery-powered applications.

 

Benchmarks

 

The Cortex-M23 has a clock speed of up to 120 MHz and can achieve a Dhrystone MIPS (DMIPS) performance of up to 256. It also has a single-cycle MAC (multiply-accumulate) unit, which enables it to perform fast mathematical operations.

 

Description of the Block Diagram

 

It includes the following components:

 

  • Instruction fetch unit: responsible for fetching instructions from memory
  • Decode unit: responsible for decoding instructions
  • Execute unit: responsible for executing instructions
  • Memory Protection Unit (MPU): responsible for memory protection and isolation
  • Interrupt controller: responsible for handling interrupts
  • System control block: responsible for system-level functions such as clock and power management

 

Add-Ons

 

There are a number of add-ons available for the Cortex-M23 core, including:

 

  • Floating-point unit (FPU): adds floating-point arithmetic support to the Cortex-M23
  • Cryptography extensions: adds support for cryptographic algorithms such as AES and SHA
  • Ethernet MAC: adds support for Ethernet communication
  • USB device: adds support for USB communication

 

Usage

 

The Cortex-M23 was first used in 2017 in a variety of microcontroller applications. It is commonly used in Internet of Things (IoT) devices, industrial control systems, and consumer electronics. Some examples of products that use the Cortex-M23 include smart home devices, industrial automation equipment, and wearable devices.

 

There are many products that use the Cortex-M23 microcontroller. Here are a few examples:

 

  • The NXP S32K144 microcontroller is based on the Cortex-M23 and is used in a variety of automotive applications, including powertrain and safety systems.

  • The STMicroelectronics STM32G0 microcontroller is based on the Cortex-M23 and is used in a variety of applications, including IoT devices, industrial control systems, and consumer electronics.

  • The Atmel SAML10 microcontroller is based on the Cortex-M23 and is used in a variety of applications, including smart home devices, wearable devices, and industrial automation equipment.

 

These are just a few examples of products that use the Cortex-M23 microcontroller. It is used in many other products as w

Recent Stories