V2 ColdFire® Core - opening the door to 32-bit control

8/4/2019 V2 ColdFire Core - opening the door to 32-bit control

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V2 ColdFire Core

opening the door to 32-bit controller


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Contents

Introduction to ColdFire controller

Why V2 ColdFire?

Key Features

Architecture of V2 ColdFire

Ecosystem

Software ToolsApplications

Benefits and Advantages

Conclusion


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Introductiony In 1994, the innovative ColdFire family was added to Freescale 's

legacy 68K family tree.

y Freescale evaluated high-level source code from many 68K

embedded systems customers.

y The variable-length RISC ColdFire architecture gives customers

greater flexibility to lower memory and system costs.


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Intro

1. Core architecture (V2) is available as synthesizable

intellectual property for ASIC design. Runs up to 166

MHz.

2. The V2 ColdFire is available in choice of two different

design packages:

y V2 ColdFire Core: 32-bit address/data processor core with integrated

debug module

y V2 ColdFire Standard Product Platform (SPP): The V2 ColdFire Core

integrated with a set of tested and proven peripherals


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Why V2 ColdFire?

y RISC performance

y High Code density

y On-Chip memory


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Key Features

Features of the V2 ColdFire Core include:

y Variable-length RISC, clock-multiplied core

y 166-MHz in typical 130-nm process

y Independent, decoupled pipelines:

2-stage instruction fetch pipeline (IFP)

2-stage operand execution pipeline (OEP)

FIFO instruction buffer is the decoupling mechanism

y 16 user-accessible, 32-bit general purpose registers (GPRs)y Integrated cache controller

y Integrated SRAM controller

y 100% synthesizable and technology-independent design


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Architecture of V2 ColdFire Core


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Programming model

The ColdFire2/2M programming model consists of three registergroups:

INTEGER unit user programming model

i. 16 General-purpose 32-bit registers (D0 D7, A0 A7)

ii. 32-bit Program Counter (PC)

iii. 8-bit Condition Code Register (CCR)

MA

C unit user programming modeli. 32-bit accumulator (ACC)

ii. 16-bit mask register (MASK)

iii. 8-bit MAC status register (MACSR)

SUPERVISOR programming model

i. Status Register (SR)

ii. Cache Control Register (CACR)iii. Access Control Register 0 (ACR0, ACR1)

iv. Vector Base Register (VBR)

v. ROM Base Address Register (ROMBAR0)

vi. SRAM Base Address Register (RAMBAR0)


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Ecosystems

y World-class development tools suites offered through leading tools

developers.

y Also supported are a rich set of real time operating systems, stacks,

and drivers from Freescale partners, who include:


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Software Tools

y

CodeWarrior Development Studio

y ColdFire Flash/EEPROM Programmer

y ColdFire In-Circuit Debugger


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Applications

y Portable Internet Audio Products

y Local Medical Monitoring Gateway

y HVAC and Security Control Panel

y Music Media Player

y

Digital Set-Top Box


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Portable InternetAudio Products


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HVAC and Security Control Panel


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Local Medical Monitoring Gateway


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Benefits andAdvantages

y Memory costsVariable-length RISC Instruction set optimized for code density.

Requires substantially less memory then fixed length RISCs.

y Low CUP cost

Small gate count..MAC/EMAC often eliminates need for an additional DSP.

y High performance RISC-based Micro Architecture

Simple instruction set.

Single cycle execution of most instruction.

y Low Risk

The richest development tool ecosystem.

Compatible with and proven in a installed base.


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Conclusion

The ColdFire Architecture is ubiquitous in consumer and

industrial applications, which means a massive base of

existing application code. ColdFire controllers continue

to set the pace for the embedded marketfrom

industrial automation systems to inkjet printers andmedia players.


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References

Much of the material in this set of slides was borrowed from the

following sources:

y ColdFire User Manual.

y

ColdFire V2 Core Reference Manual.y MCF521x ColdFire Microcontroller Data Sheet.

y http://www.pemicro.com/support/forums_index.cfm

y http://www.ip-extreme.com/video/coldfire_family_video.html

y Prof. Yann-Hang Lee, Dept. of Computer Science & Engineering,

Arizona State University, CSE325 Course Slides.


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V2 ColdFire® Core - opening the door to 32-bit control