Head Office:

PMC-Sierra, Inc.

8555 Baxter Place

Burnaby, B.C. V5A 4V7

Canada

Tel: 604.415.6000

Fax: 604.415.6200

4 Link CES/DBCES AAL1 SAR

To order documentation,

send email to:

document@pmc-sierra.com

or contact the head office,

Attn: Document Coordinator

All product documentation is available

on our web site at:

http://www.pmc-sierra.com

For corporate information,

send email to:

info@pmc-sierra.com

PMC-1991273 (P2)

 Copyright PMC-Sierra, Inc. 2001.

All rights reserved.

August 2001.

S/UNI is a registered trademark and

AAL1gator-4, COMET-QUAD, Any-

PHY, SPECTRA-155, and

PMC-Sierra are trademarks of PMC-

Sierra, Inc.

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE

Preliminary

PM73124 AAL1gator™-4

• Queues are added by making entries

into an add queue FIFO to minimize

queue activation overhead.

RECEIVE SECTION

• Provides per-VC configuration of time

slots allocated, partial cell size,

sequence number processing options,

cell delay variation tolerance buffer

depth, maximum buffer depth.

• Supports Fast Sequence Number

processing and Robust Sequence

Number processing.

GENERAL

• Provides a microprocessor interface

for configuration, management, and

statistics gathering.

• Provides single maskable, open-

collector interrupt with master interrupt

register to facilitate processing for

AAL1, RAM and UTOPIA exceptions.

• Provides multiple counters in the Cell

Transmit and Receive directions as

required by the ATM Forum's CES-IS

2.0 MIB.

• Provides a seamless interface to an

external 128K x 16(18) (10 ns)

Synchronous SRAM or ZBT RAM.

• Low-power 2.5V CMOS with 3.3V, 5V

tolerant I/O.

• 324-pin plastic ball grid array (PBGA)

package.

• Pin compatible with PM73123

AAL1gator-8.

APPLICATIONS

• Integrated Access Device.

• ATM Optical Networking Unit (ONU),

ATM Passive Optical Network (APON).

• Local Multipoint Distribution System

(LMDS).

• Unstructured DS-3 over ATM.

PM73124

AAL1gator-4

T1/E1 x 4

PM7347

S/UNI-JET

DS3 LIU

Ethernet

ATM

Interworking

Function,

AAL5 SAR

PM7329

S/UNI-APEX-

1K800

Video

PM7328

S/UNI-

ATLAS-

1K800

UTOPIA L2/

Any-PHY

UTOPIA L2

PM4354

COMET-

QUAD

INTEGRATED ACCESS DEVICE

TYPICAL APPLICATIONS

PM5384

S/UNI-1x155

UTOPIA L2/

Any-PHY

UTOPIA L2

PM73124

AAL1gator-4

PM5342

SPECTRA-

155

OR

DS3 LIU

PM73124

AAL1gator-4

PM73124

AAL1gator-4

PM73124

AAL1gator-4

PM7329

S/UNI-APEX-

1K800

PM7328

S/UNI-ATLAS-

1K800

UNSTRUCTURED DS3 OVER ATM