AN2662 Freescale Semiconductor / Motorola, AN2662 Datasheet

AN2662

Manufacturer Part Number

AN2662

Description

Migrating from PowerQUICC II to PowerQUICC III

Manufacturer

Freescale Semiconductor / Motorola

Datasheet

1.AN2662.pdf (36 pages)

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Application Note

AN2662

Rev. 0, 05/2004

Migrating from

PowerQUICC II to

PowerQUICC III

Nigel Dick

NCSD Applications

East Kilbrade,

Scotland

This application note outlines the considerations that are relevant to migrating from the

MPC826x (PowerQUICC II) family of devices to the higher performance MPC85xx

(PowerQUICC III) family. This document, explains the differences between the main system

blocks and internal cores, explores the initialization and reset sequences, and details the minor

modifications required to run existing PowerQUICC II software on the PowerQUICC III.

It is assumed that the reader has a basic understanding of the system blocks and operation of

the PowerQUICC II microprocessor family and HiP7 derivatives. Therefore, it is very

important that users are familiar with the following technical references in order to understand

the correct terminology and general MPC85xx and e500 programming model. At a minimum,

the user should refer to the MPC8560

Processor Reference Manual.

The following Motorola documents are referred to throughout this application note:

The products described in this document are PowerPC™ microprocessor cores. This

application note outlines differences between the register models defined by the

Apple/IBM/Motorola (AIM) and Book E versions of the PowerPC architecture and the

registers implemented in the MPC603e processor and the e500 microprocessor core.

The following topics are addressed:

•

Topic

Section 1, “System Overview”

Section 2, “Core Differences”

Section 3, “Communications Processor Module (CPM)”

Section 4, “New Features on PowerQUICC III”

Section 5, “Initialization, Reset and Boot Procedures”

Section 6, “Software Considerations”

Section 7, “Summary”

MPC8560

Manual (MPC8560RM)

PowerPC

MPC603e and e500 Register Model Comparison (AN2490)

Freescale Semiconductor, Inc.

For More Information On This Product,

™

PowerQUICC™ III

Go to: www.freescale.com

e500 Core Complex Reference Manual (E500CORERM)

PowerQUICC™ III

Integrated Communications Processor Reference

Integrated Communications

Page

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