txc-04246 TranSwitch Corporation, txc-04246 Datasheet

txc-04246

Manufacturer Part Number

txc-04246

Description

Oc-3 Ethemet Over Sonet/sdh Mapper

Manufacturer

TranSwitch Corporation

Datasheet

1.TXC-04246.pdf (2 pages)

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U.S. and/or foreign patents issued or pending

EtherMap, PHAST, TEMx28, TranSwitch and TXC

are registered trademarks of TranSwitch Corporation

• Eight 10/100 Mbit/s Ethernet ports, each using a SMII

• Single 1000 Mbit/s Ethernet port, using a parallel GMII

• Ethernet Jumbo Frame support, all modes

• Ethernet Management interface for control

• Low latency throughput performance

• 64 ms differential delay compensation

• Configurable transmit and receive buffers up to 512 kbytes

• Provides IEEE 802.3 Half Duplex mode on 10/100 Mbit/s

• Provides IEEE 802.3 Management Statistics (RMON)

• Ethernet frame encapsulation/decapsulation protocols:

• Performs mapping/demapping of encapsulated Ethernet

• On-chip LCAS processing (ITU-T G.7042) for low and high

• Glueless interface to external 64/128/256 Mbit SDRAM

• Low Order POH and Pointer processing for 84/63 VT1.5/

• High Order POH processing for STS-1 SPE/VC-3/STS-3c

• Byte-wide 19 MHz parallel Add and Drop Telecom Bus

• Per-port Ethernet side and SONET/SDH system side

• 16-bit wide microprocessor interface, selectable between

• Boundary scan (IEEE 1149.1 standard)

• + 3.3V and +1.8V power supplies, 5V tolerant I/O leads

• 400-lead plastic ball grid array package

• Device Driver

FEATURES

• ITU-T G.7041, Generic Framing Procedure (GFP)

• ITU-T X.86/X.85, Link Access Procedure SDH (LAPS)

• ITU-T Q.922, Link Access Procedure Frame Mode (LAPF)

• RFC1662/3518, PPP Bridging Control Protocol (BCP)

interface

interface (lead shared with SMII interfaces)

and Full Duplex mode on 10/100/1000 Mbit/s Ethernet ports

frames into/from low order (VT1.5 SPE/VT2 SPE/VC-11/

VC-12) and high order (STS-1 SPE/VC-3) virtually

concatenated payloads

frames into/from a single contiguous concatenated (STS-3c-

SPE/VC-4) payload or a single Low/High order (VT1.5/VT2/

VC-11/VC-12/STS-1/VC-3) payload

order virtual concatenated payloads

VT2/TU-11/TU-12 and 3 TU-3

SPE/VC-4

interfaces

loopback for system level diagnostics

Motorola or Intel

(PBGA, 27 mm x 27 mm)

TELECOM BUS SIDE

TranSwitch Corporation

DROP Bus

ADD Bus

Tel: 203-929-8810

+3.3V

+1.8V

•

Microprocessor

Interface

3 Enterprise Drive

•

HO/LO

RING

Ports

Fax: 203-926-9453

EtherMap -3 Pt

SONET/SDH Mapper

OC-3 Ethernet over

Interface

SDRAM

HO/LO

POH

Ports

TXC-04246

DESCRIPTION

APPLICATIONS

The EtherMap -3 Pt (Platinum) is a highly integrated EoS device that

provides for mapping of 10/100/1000 Mbit/s Ethernet into SONET/SDH

STS-3/STM-1 Transport payloads with extremely low latency throughput.

The device supports connection for up to eight 10/100 Mbit/s Ethernet

ports, using SMII interfaces, or a single 1000 Mbit/s Ethernet port, using a

GMII interface. Ethernet frames are encapsulated using either GFP , LAPS,

LAPF or PPP/BCP protocol. The encapsulated Ethernet frames are then

mapped into either virtually concatenated low or high order payloads, such

as VT1.5 SPE/VT2 SPE/VC-11/VC-12/STS-1 SPE/VC-3, or into

contiguously concatenated payloads such as STS-3c SPE/VC-4. Low and

high order SONET/SDH POH generation and processing/termination is

performed. A Telecom Bus provides the SONET/SDH interface.

In addition to support for full-rate Ethernet transfer, over-subscribed

Ethernet transfers are also supported using back pressure mechanisms

(half and full duplex flow control) in order to prevent frame loss.

Configurable external SDRAM is used for buffering Ethernet frames to

support bandwidth oversubscription, highly bursty traffic and flow control

operation. Buffers are used as well for receive SONET/SDH container

alignment and differential delay compensation of low and high order

virtually concatenated payloads.

For both low and high order virtually concatenated payloads, optional on-

chip standards based LCAS processing is provided to allow hitless

dynamic bandwidth adjustments.

A powerful hardware and RTOS independent EtherMap family device

driver provides full access to all the features of the device through APIs. It

utilizes matched get/set functions and can be easily ported.

• SONET/SDH Add/Drop and Terminal Multiplexers

• Multi-Service Access Platforms (MSAP)

• Compact Access or CPE Platforms

• IP DSLAMS

• Wireless Backhaul Electronics (RNC/BSC)

• Latency Sensitive Transport (FTP)

Controls

Boundary

Scan

•

OC-3 Ethernet over SONET/SDH Mapper

Shelton, Connecticut 06484

CLOCKS

(SONET/SDH Ref,

System, One Sec.)

Management

•

Ethernet

Interface

www.transwitch.com

EtherMap -3 Pt Device

PRODUCT INFORMATION

•

ETHERNET LINE SIDE

10/100 Mbit/s SMII (Port 8)

10/100 Mbit/s SMII (Port 1)

/ 1000 Mbit/s GMII

•

TXC-04246-MC, Ed. 1

Document Number:

USA

TXC-04246

October 2004

Related parts for txc-04246

txc-04246 Summary of contents

Page 1

... Shelton, Connecticut 06484 • • • Fax: 203-926-9453 • www.transwitch.com EtherMap -3 Pt Device TXC-04246 PRODUCT INFORMATION ETHERNET LINE SIDE 10/100 Mbit/s SMII (Port 1) / 1000 Mbit/s GMII • • • • 10/100 Mbit/s SMII (Port 8) Document Number: TXC-04246-MC, Ed. 1 October 2004 USA • ...

Page 2

... GMII interface SDRAM 3 Enterprise Drive • Shelton, Connecticut 06484 Fax: 203-926-9453 www.transwitch.com • • EtherMap-3 Pt, TXC-04246 10/100 Mbit/s SMII interfaces Ethernet Switch x16 (24 Ports 28xDS1 / 21xE1 Gigabit Ethernet 1000 Mbit/s PHY Line Document Number: TXC-04246-MC, Ed. 1 October 2004 • USA ...

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