Analog Devices SHARC ADSP-2136 Series Guía de aplicación

ADSP-2136x SHARC® Processor

Hardware Reference

Includes ADSP-21362, ADSP-21363,

ADSP-21364, ADSP-21365, ADSP-21366

Revision 2.0, June 2009

Part Number

82-000501-01

Analog Devices, Inc.

One Technology Way

Norwood, Mass. 02062-9106

www.BDTIC.com/ADI

document may not be reproduced in any form without prior, express writ-

ten consent from Analog Devices, Inc.

Printed in the USA.

Disclaimer

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accurate and reliable. However, no responsibility is assumed by Analog

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third parties which may result from its use. No license is granted by impli-

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Trademark and Service Mark Notice

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All other brand and product names are trademarks or service marks of

their respective owners.

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ADSP-2136x SHARC Processor Hardware Reference iii

for the ADSP-21362/3/4/5/6 Processors

CONTENTS

PREFACE

Purpose of This Manual ............................................................... xxxi

Intended Audience ....................................................................... xxxi

Manual Contents ........................................................................ xxxii

What’s New in This Manual ....................................................... xxxiv

Technical or Customer Support .................................................. xxxvi

Supported Processors ................................................................. xxxvii

Product Information ................................................................. xxxvii

MyAnalog.com ................................................................... xxxviii

Processor Product Information ............................................ xxxviii

Related Documents .............................................................. xxxix

Online Technical Documentation .............................................. xl

Accessing Documentation From VisualDSP++ ....................... xl

Accessing Documentation From Windows ............................ xli

Accessing Documentation From the Web .............................. xli

Conventions ................................................................................. xlii

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Contents

iv ADSP-2136x SHARC Processor Hardware Reference

for the ADSP-21362/3/4/5/6 Processors

INTRODUCTION

ADSP-2136x SHARC Design Advantages ..................................... 1-1

SHARC Family Product Offerings ........................................... 1-5

Processor Architectural Overview .................................................. 1-6

Processor Core ........................................................................ 1-7

Processor Peripherals ............................................................... 1-7

I/O Processor ..................................................................... 1-7

Digital Applications Interface (DAI) ................................... 1-9

Development Tools ..................................................................... 1-10

Architecture Enhancements ......................................................... 1-10

Parallel Port Enhancements ................................................... 1-10

I/O Architecture Enhancements ............................................ 1-11

Instruction Set Enhancements ............................................... 1-11

I/O PROCESSOR

DMA Controller Operation .......................................................... 2-2

DMA Transfers Between Internal Memory ............................... 2-3

General Procedure for Configuring DMA ...................................... 2-4

Summary ................................................................................ 2-5

IOP Registers ............................................................................... 2-5

Standard DMA Parameter Registers ......................................... 2-6

Standard DMA Status Registers ............................................... 2-8

Chaining DMA Status Registers .............................................. 2-9

Data Buffers ........................................................................... 2-9

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ADSP-2136x SHARC Processor Hardware Reference v

for the ADSP-21362/3/4/5/6 Processors

Contents

DMA Channel Allocation ..................................................... 2-10

DMA Channel Priority ............................................................... 2-11

DMA Channel Arbitration Modes ......................................... 2-14

Peripheral DMA Bus ......................................................... 2-14

Rotating Priority by Group .................................................... 2-15

DMA Channel Interrupts ...................................................... 2-16

Internal Transfer Completion ............................................ 2-16

DMA Channel Interrupt Priorities ......................................... 2-16

Interrupt Versus Channel Priorities .................................... 2-17

DMA Controller Addressing .................................................. 2-18

Internal Index Register Addressing ......................................... 2-18

DMA Chaining ........................................................................... 2-20

TCB Memory Storage ............................................................ 2-20

Chain Pointer Register ...................................................... 2-21

Chain Assignment ................................................................. 2-22

Starting Chain Loading ......................................................... 2-24

TCB Chain Loading Priority ................................................. 2-25

Chain Insert Mode (SPORTs Only) ................................... 2-25

DMA Start and Stop Conditions ................................................. 2-25

Configuring IOP/Core Interaction .............................................. 2-26

Interrupt-Driven I/O ............................................................. 2-27

Polling DMA Channel Status ................................................. 2-28

Standard DMA Status ....................................................... 2-29

Chaining DMA Status ....................................................... 2-29

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Contents

vi ADSP-2136x SHARC Processor Hardware Reference

for the ADSP-21362/3/4/5/6 Processors

TCB Storage ............................................................................... 2-30

Serial Port TCB .................................................................... 2-30

Parallel Port TCB .................................................................. 2-30

SPI TCB ............................................................................... 2-31

I/O Processor Register Access ...................................................... 2-32

IOP Access Conditions .......................................................... 2-32

Interrupt Latency ............................................................. 2-33

TCB Chain Loading Access ................................................... 2-34

IOP Register Access Arbitration ............................................. 2-34

IOP Performance .................................................................. 2-35

MEMORY-TO-MEMORY PORT DMA

Features ........................................................................................ 3-2

Functional Description ................................................................. 3-2

DMA Channels ....................................................................... 3-2

Buffer ..................................................................................... 3-3

Interrupts ............................................................................... 3-3

Data Throughput ......................................................................... 3-3

Programming Model ..................................................................... 3-4

Programming Example .................................................................. 3-4

PARALLEL PORT

Features ........................................................................................ 4-2

Pin Descriptions ........................................................................... 4-3

Multiplexed Pin Functions ...................................................... 4-4

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ADSP-2136x SHARC Processor Hardware Reference vii

for the ADSP-21362/3/4/5/6 Processors

Contents

Functional Description ............................................................ 4-4

Multiplexed Operation ........................................................ 4-4

Address Cycles .................................................................... 4-4

Data Cycles ......................................................................... 4-5

Data Buffers ............................................................................ 4-6

Read Path ........................................................................... 4-6

Write Path .......................................................................... 4-7

Operation Modes .................................................................... 4-8

8-Bit Mode ......................................................................... 4-8

16-Bit Mode ....................................................................... 4-9

Parallel Port Registers .................................................................. 4-10

Control Register (PPCTL) ..................................................... 4-11

Data Buffer Register (RXPP/TXPP) ....................................... 4-11

Data Transfer Types .................................................................... 4-11

DMA Transfers ...................................................................... 4-12

DMA Internal Word Count Register (ICPP) ...................... 4-12

External Word Count Register (ECPP) .............................. 4-12

Chained DMA Transfers ........................................................ 4-13

DMA Chain Pointer Register (PPCP) ................................ 4-13

DMA Transfer Rules ......................................................... 4-13

Core-Driven Transfers ........................................................... 4-14

Interrupt Driven Accesses .................................................. 4-15

Status-Driven Transfers (Polling) ....................................... 4-16

Known-Duration Accesses ................................................. 4-16

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Contents

viii ADSP-2136x SHARC Processor Hardware Reference

for the ADSP-21362/3/4/5/6 Processors

Core-Stall Driven Transfers ............................................... 4-17

Interrupts ................................................................................... 4-18

DMA Interrupts .................................................................... 4-19

Core Interrupts ..................................................................... 4-19

Throughput ................................................................................ 4-19

8-Bit Access .......................................................................... 4-20

16-Bit Access ........................................................................ 4-21

8-Bit Versus 16-Bit SRAM Modes ......................................... 4-22

Parallel Port Effect Latency .................................................... 4-23

Programming Model ................................................................... 4-23

Configuring the Parallel Port for DMA .................................. 4-24

Configuring a Chained DMA ................................................ 4-24

Configuring the Parallel Port for Core Access ......................... 4-25

Programming Examples .............................................................. 4-26

DIGITAL APPLICATION INTERFACE

Features ........................................................................................ 5-1

Functional Description ................................................................. 5-3

Signal Naming Conventions ......................................................... 5-5

DAI Peripherals ............................................................................ 5-6

I/O Pin Buffers ....................................................................... 5-7

Pin Buffers as Signal Output ............................................... 5-8

Pin Buffers as Signal Input ................................................ 5-10

Programmable Pull-Up Resistors ....................................... 5-11

Pin Buffers as Open Drain ................................................ 5-11

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ADSP-2136x SHARC Processor Hardware Reference ix

for the ADSP-21362/3/4/5/6 Processors

Contents

Miscellaneous Buffers ............................................................ 5-12

Signal Routing Matrix by Groups ........................................... 5-13

DAI Group Routing .............................................................. 5-14

Rules for SRU Connections ................................................... 5-16

Making SRU Connections ..................................................... 5-16

Routing Capabilities .............................................................. 5-20

Default Routing .......................................................................... 5-21

Interrupt Controller .................................................................... 5-24

System versus Exception Interrupts ........................................ 5-24

Functional Description .......................................................... 5-25

Interrupt Channels ................................................................ 5-25

Interrupt Priorities ................................................................ 5-25

Miscellaneous Interrupts ........................................................ 5-26

Core versus DAI Interrupts .................................................... 5-26

Interrupt Events .................................................................... 5-27

Servicing Interrupts ............................................................... 5-28

Debug Features ........................................................................... 5-29

Shadow Registers ................................................................... 5-29

Loop Back Routing ................................................................ 5-30

Programming Model ................................................................... 5-31

SERIAL PORTS

Features ........................................................................................ 6-4

Pin Descriptions ........................................................................... 6-6

SRU Configuration ....................................................................... 6-6

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Contents

x ADSP-2136x SHARC Processor Hardware Reference

for the ADSP-21362/3/4/5/6 Processors

SRU SPORT Receive Master ................................................... 6-7

SRU SPORT Signal Integrity .................................................. 6-7

Functional Description ................................................................. 6-9

Registers ..................................................................................... 6-10

Control Registers (SPCTLx) .................................................. 6-12

Multichannel Control Registers (SPMCTLxy) ....................... 6-12

Data Buffers ......................................................................... 6-13

Transmit Buffers (TXSPxA/B) ........................................... 6-13

Transmit Path ............................................................... 6-14

Receive Buffers (RXSPxA/B) ............................................. 6-14

Receive Path ................................................................. 6-15

Buffer Status ..................................................................... 6-15

Multichannel Buffer Status ............................................... 6-17

Selecting Operating Modes ......................................................... 6-18

Mode Selection ..................................................................... 6-19

Data Word Formats .................................................................... 6-20

Word Length (SLEN) ............................................................ 6-20

Endian Format (LSBF) .......................................................... 6-21

Data Packing (PACK) ........................................................... 6-21

Data Type (DTYPE) ............................................................. 6-22

Companding the Data Stream ............................................... 6-23

Companding As a Function ................................................... 6-24

Clock Signal Options .................................................................. 6-25

Master Clock Divider Registers (DIVx) ................................. 6-25

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