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INVERSE MULTIPLEXING FOR ATM

IDT82V2608

Version - 4

December 4, 2006

6024 Silver Creek Valley Road, San Jose, CA 95138

Telephone: (800) 345-7015 • TWX: 910-338-2070 • FAX: (408) 284-2775

Printed in U.S.A.

DISCLAIMER

Integrated Device Technology, Inc. reserves the right to make changes to its products or specifications at any time, without notice, in order to improve design or performance

and to supply the best possible product. IDT does not assume any responsibility for use of any circuitry described other than the circuitry embodied in an IDT product. The

Company makes no representations that circuitry described herein is free from patent infringement or other rights of third parties which may result from its use. No license is

granted by implication or otherwise under any patent, patent rights or other rights, of Integrated Device Technology, Inc.

LIFE SUPPORT POLICY

Integrated Device Technology's products are not authorized for use as critical components in life support devices or systems unless a specific written agreement pertaining to

such intended use is executed between the manufacturer and an officer of IDT.

1. Life support devices or systems are devices or systems which (a) are intended for surgical implant into the body or (b) support or sustain life and whose failure to perform,

when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user.

2. A critical component is any components of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device

or system, or to affect its safety or effectiveness.

Table of Contents

TABLE OF CONTENTS ........................................................................................................................................................... 3

LIST OF TABLES .................................................................................................................................................................... 6

LIST OF FIGURES ................................................................................................................................................................... 8

FEATURES .............................................................................................................................................................................. 9

APPLICATIONS....................................................................................................................................................................... 9

STANDARDS COMPLIANT .................................................................................................................................................... 9

DESCRIPTION......................................................................................................................................................................... 9

FUNCTIONAL BLOCK DIAGRAM ........................................................................................................................................ 10

PIN ASSIGNMENT ........................................................................................................................................................ 11

PIN DESCRIPTION ....................................................................................................................................................... 12

INTERFACE .................................................................................................................................................................. 18

3.1

UTOPIA INTERFACE ....................................................................................................................................... 18

3.1.1 Utopia Loopback Function ................................................................................................................... 18

3.2

LINE INTERFACE ............................................................................................................................................ 19

3.2.1 Line Interface Work Modes .................................................................................................................. 19

3.2.1.1 Mode0 .................................................................................................................................. 20

3.2.1.2 Mode1~Mode4 ..................................................................................................................... 20

3.2.1.3 Mode5~Mode6 ..................................................................................................................... 22

3.2.1.4 Mode7~Mode10 ................................................................................................................... 22

3.2.1.5 Mode11 ................................................................................................................................ 22

3.2.1.6 Mode12~Mode13 ................................................................................................................. 22

3.2.1.7 Mode14~Mode15 ................................................................................................................. 23

3.2.2 Line Interface Timing Clock Modes...................................................................................................... 23

3.2.3 Line Interface Loopback Function ........................................................................................................ 23

3.3

EXTERNAL MICROPROCESSOR INTERFACE ............................................................................................. 24

3.3.1 External Microprocessor Interface Selection........................................................................................ 24

3.3.2 Command FIFOs.................................................................................................................................. 24

3.3.3 Registers .............................................................................................................................................. 24

3.3.4 Register Map........................................................................................................................................ 24

3.3.5 Register Description............................................................................................................................. 25

3.3.6 Procedure of Loading Software and Sending Commands ................................................................... 27

3.4

SRAM INTERFACE .......................................................................................................................................... 29

IMA AND UNI FUNCTIONS .......................................................................................................................................... 30

4.1

IMA MODE ....................................................................................................................................................... 30

4.1.1 IMA Frame ........................................................................................................................................... 30

4.1.2 TRL (Timing Reference Link) ............................................................................................................... 30

4.1.3 Stuffing Mode ....................................................................................................................................... 30

Table of Contents

December 4, 2006

IDT82V2608

Inverse Multiplexing for ATM

4.2

4.1.4 Link Backup.......................................................................................................................................... 30

UNI MODE ....................................................................................................................................................... 30

PROGRAMMING INFORMATION FOR IMAOS08 ....................................................................................................... 31

5.1

COMMAND TYPES .......................................................................................................................................... 31

5.1.1 Command Message ............................................................................................................................. 31

5.1.2 Command Reply Message................................................................................................................... 31

5.1.3 Alarm Message .................................................................................................................................... 31

5.2

COMMAND ENCODING .................................................................................................................................. 32

5.3

COMMAND DESCRIPTION ............................................................................................................................. 33

IMA OPERATION .......................................................................................................................................................... 69

6.1

IMA INITIALIZATION ........................................................................................................................................ 69

6.2

CONFIGURE A GROUP .................................................................................................................................. 69

6.3

START UP A GROUP ...................................................................................................................................... 70

6.4

INHIBIT A GROUP/NOT INHIBIT A GROUP ................................................................................................... 70

6.5

ADD LINKS TO A GROUP THAT IS IN OPERATIONAL STATE .................................................................... 70

6.6

DELETE LINKS ................................................................................................................................................ 70

6.7

DEACTIVATE AND RECOVER LINKS ............................................................................................................ 70

6.8

RESTART A GROUP ....................................................................................................................................... 70

6.9

DELETE A GROUP .......................................................................................................................................... 70

PMON (PERFORMANCE MONITORING) .................................................................................................................... 71

IMAOS08_SLAVE ......................................................................................................................................................... 73

8.1

GROUP AUTO DETECT .................................................................................................................................. 73

8.1.1 Master Side .......................................................................................................................................... 73

8.1.2 Slave Side ............................................................................................................................................ 73

8.2

PROGRAMMING INFORMATION FOR IMAOS08_SLAVE ............................................................................ 73

8.2.1 Command types ................................................................................................................................... 73

8.2.2 Command Encoding............................................................................................................................. 73

8.2.3 Command Description.......................................................................................................................... 73

JTAG TEST ACCESS PORT ........................................................................................................................................ 80

9.1

TAP BUS SIGNALS ......................................................................................................................................... 80

9.2

INSTRUCTIONS .............................................................................................................................................. 80

PHYSICAL AND ELECTRICAL CHARACTERISTICS ............................................................................................... 81

10.1 ABSOLUTE MAXIMUM RATINGS ................................................................................................................... 81

10.2 D.C. CHARACTERISTICS ............................................................................................................................... 81

10.3 A.C. CHARACTERISTICS ............................................................................................................................... 82

10.3.1 Output Loading..................................................................................................................................... 82

10.3.2 System Clock and RST Signal Timing ................................................................................................. 82

10.3.3 Utopia Interface Timing ........................................................................................................................ 83

10.3.4 Line Interface Timing............................................................................................................................ 84

10.3.5 Microprocessor Interface Timing ......................................................................................................... 85

10.3.5.1 Interface with Motorola CPU (MPM =0) ............................................................................... 85

10.3.5.2 Interface with Intel CPU (MPM =1)....................................................................................... 87

Table of Contents

December 4, 2006

IDT82V2608

Inverse Multiplexing for ATM

10.3.6 SRAM Interface Timing ........................................................................................................................ 89

10.3.6.1 Write Cycle Specification...................................................................................................... 89

10.3.6.2 Read Cycle Specification ..................................................................................................... 90

GLOSSARY ........................................................................................................................................................................... 91

INDEX .................................................................................................................................................................................... 95

ORDERING INFORMATION.................................................................................................................................................. 98

Table of Contents

December 4, 2006