PMC-Sierra PM5350 User Manual

PMC-Sierra,Inc.

155 Mb/s SATURN User Network Interface

PM5350

S/UNI-155-ULTRA

FEATURES

• Low-cost, monolithic SATURN®

SONET/SDH ATM User Network Interface (UNI) for category-5 (UTP-5), Shielded Twisted Pair (STP) and optical applications.

• Implements the ATM Transmission Convergence (TC) sublayer according to ATM Forum specifica tio ns usi ng t he SONET/SDH 155.52 Mb/s STS- 3c/ STM-1 and 51.84 Mb/s STS-1 formats.

• Provides on-chip UTP/STP drivers, receivers, and line equalizers to allow direct connection to 155 Mb/s UTP-5 or STP twisted pair wiring facilities using line coupling transformers.

• Provides a selectable UTP/STP or Pseudo-ECL (PECL) interface to all ow direct connection to Optical Data Links (ODLs).

• Includes clock recovery and clock synthesis with on-chip loop filters.

BLOCK DIAGRAM

• Operates in timing master or timing slave (loop timed) modes.

• Frames to SONET/SDH framing bytes (A1, A2), processes the section and line Bit Interleaved Parity (B1, B2) and the Far-End Block Error (Z2) bytes.

• Interprets the H1, H2, and H3 payload pointer bytes.

• Processes t he SONET path overhead BIP-8 (B3), signal label (C2) and path status (G1) bytes.

• Inserts and extracts ATM payloads using ATM ce ll delineation.

• Provides on-chip FIFO buffers in both transmit and receive paths.

• Provides on-chip support for GFC and XOFF flow control.

• Provides a synchronous 8-bit plus parity SATURN-Compliant Interface for PHYsical layer devices (SCI-PHY™) bus operating at 50 MHz.

• Compatible with ATM Forum UTOPIA interface format.

• Provides a generic 8-bit microprocessor bus interface for configuration, control, and monitoring.

• Provides TTL-compatible inpu ts and outputs and differential PECL inputs.

• Low power, +5 V CMOS technology.

• Packaged in a 128-pin, 14 mm by

20 mm Plastic Quad Flat Pack (P QFP) with 0.5 mm lead pitch.

APPLICATIONS

• 155.52 or 51.84 Mb/s twisted pair or optical ATM LANs

• Workstations and Personal Computer NIC Cards

• Switches, Hubs, and Router Port Cards

• SONET- or SDH-Compliant ATM UNIs

TXD+

TXD-

RXD+

RXD-

Twisted

Analog Edge

Twisted Pair Rx

PECLSEI

TVREF

Pair Tx

RCAP1

TRREF

RCAP2

ATP2

Clock

Generator

Clock/Data

Recovery

ATP1

TCP

TGFC

Transmit

ATM Cell

Receive

ATM Cell

Processor

RGFC

XOFF

RCP

4-Cell FIFO

Microprocessor

Interface

ALE

CSB

D[7:0]

A[10:0]

Transmit

ATM

Receive

ATM

RDB

WRB

TSOC TXPRTY

TDAT[7:0] TCA TWRENB TFCLK

RSOC RXPRTY RDAT[7:0] RCA RRDENB RFCLK TSEN

INTB

RSTB

TCLK

Transmit

Receive

Overhead Processor

RCLK

TFP

Processor

RFP

REFCLK

Parallel

Serial

Parallel

LED

Control

OUT[1:0]

Framer and

Overhead Processor

Framer and

PMC-960709 (R4) PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE  1998 PMC-Sierra, Inc.

PM5350 S/UNI-155-ULTRA

155 Mb/s SATURN User Network Interface

TYPICAL APPLICATION

ATM ADAPTER INTERFACE

SCI-PHY/UTOPIA

Interface

RCA

RXPRTY

Receive AAL

Processor

ATM Terminal

Transmit AAL

Processor

RDAT[7:0]

RSOC

RRDENB

RFCLK

TXPRTY

TDAT[7:0]

TSOC

TFCLK

TWRENB

TCA

PM5350

S/UNI

-ULTRA

155 Mbit/s SATURN

User Network Interface

RXD+

RXD-

TXD+

TXD-

Receive

Magnetics

Transmit

RJ-45

UTP-5 Facility

REFCLK

19.44 MHz Oscillator

Head Office: PMC-Sierra, Inc. #105 - 8555 Baxter Place Burnaby, B.C. V5A 4V7 Canada Tel: 604.415.6000 Fax: 604.415.6200

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

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 informatio n, send email to: info@pmc-sierra.com

PMC-960709 (R4)  1998 PMC-Sierra, Inc. October, 1998 SATURN, SCI-PHY, and

S/UNI-155-ULTRA are trademarks of PMC-Sierra, Inc.