DSP56303 datasheet(11/292 Pages) FREESCALE

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DSP56303 User’s Manual, Rev. 2

Freescale Semiconductor

1-1

DSP56303 Overview

This manual describes the DSP56303 24-bit digital signal processor (DSP), its memory,

operating modes, and peripheral modules. The DSP56303 is an implementation of the DSP56300

core with a unique configuration of internal memory, cache, and peripherals.

Use this manual in conjunction with the DSP56300 Family Manual (DSP56300FM), which

describes the CPU, core programming models, and instruction set. The DSP56303 Technical

Data (DSP56303)—referred to as the data sheet—provides DSP56303 electrical specifications,

timing, pinout, and packaging descriptions.

You can obtain these documents—and the Freescale DSP development tools—through a local

Freescale Semiconductor Sales Office or authorized distributor. To receive the latest information

on this DSP, access the Freescale web site at the address listed on the back cover of this manual.

1.1 Manual Organization

This manual contains the following sections and appendices:

Chapter 1, Overview. Features list and block diagram, related documentation,

organization of this manual, and the notational conventions used.

Chapter 2, Signals/Connections. DSP56303 signals and their functional groupings.

Chapter 3, Memory Configuration. DSP56303 memory spaces, RAM configuration,

memory configuration bit settings, memory configurations, and memory maps.

Chapter 4, Core Configuration. Registers for configuring the DSP56300 core when

programming the DSP56303, in particular the interrupt vector locations and the operation

of the interrupt priority registers; operating modes and how they affect the processor’s

program and data memories.

Chapter 5, Programming the Peripherals. Guidelines on initializing the DSP56303

peripherals, including mapping control registers, specifying a method of transferring data,

and configuring for general-purpose input/output (GPIO).

Chapter 6, Host Interface (HI08). Signals, architecture, programming model, reset,

interrupts, external host programming model, initialization, and a quick reference to the

HI08 programming model.

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