VSC870TX 查看數據表（PDF） - Vitesse Semiconductor

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VSC870TX

High Performance Serial Backplane Transceiver

Vitesse Semiconductor 

Data Sheet

VSC870

VITESSE

SEMICONDUCTOR CORPORATION

High Performance Serial

Backplane Transceiver

Features

• Performs 32-Bit Parallel to Serial and Serial to

Parallel Functions

• Serial Data Rates are 2.0Gb/s

• Designed in Conjunction with the VSC880 Serial

Crosspoint Switch

• Performs Bit Alignment, Word Alignment and

Cell Alignment

• Three Modes of Operation:

Distributed Control Packet Mode, Central

Control Cell Mode and Direct Mode

• Support for Multicast and Multiple Input Queues

• Supports Priorities, Camp-on and

Retransmission Capability in Packet Mode

• Built-in Flow Control Channel in Packet Mode

• Supports Cell Synchronization in Cell Mode

• Interfaces Directly with Industry Standard

FIFOs

• Contains Redundant Serial I/Os and Internal

Loopback Mode

• 5V Tolerant TTL Inputs

• Single 3.3V Power Supply

• Available in 192 BGA Package

VSC870 Block Diagram

TXIN[31:0]

TXTYP[1:0]

TXEN

RTR

ABORT

BYPASS

WCLK

TXOK

RXOK

RXWA

RXTYP[1:0]

RXOUT[31:0]

ACK/RCLK

RXEN

RFM

RTM/TCLK REN

WSIN WSOUT OOS RESYNEN

Transmit

Control SCRAM

Parallel

to

Serial

Alignment

Word Gen

TXCLK

Generator

Word/Cell

Aligner

RXCLK

Generator

Receive

Control

DeSCRAM

Serial

to

Parallel

CRU

Signal Detect

RESET

SCRAM

TXSA+/TXSA-

CMU

TXSB+/TXSB-

FACLPBK

REFCLK

DLYEN/CCKIN

MODE[1]

MODE[0]

LOOPBACK

RXSA+/RXSA-

RXSB+/RXSB-

RXSEL

TESTEN

VSCTE

CELLSYN

ALIVE

LTIME

G52190-0, Rev 4.1

01/05/01

© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012

Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com

Internet: www.vitesse.com

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