VSC870中文資料VITESSE數(shù)據(jù)手冊PDF規(guī)格書

General Description

The VSC870 serial backplane transceiver has been designed to operate with the VSC880 serial crosspoint switch to establish a synchronous high performance switching system. The VSC870 can also connect directly to another transceiver to act as a high bandwidth backplane interconnect link. The transmitter converts a 32-bit parallel interface operating at 62.5Mb/s to a 34-bit serial data stream operating a 2.125Gb/s. The receiver converts a 34-bit serial interface operating at 2.125Gb/s to a 32-bit parallel interface operating at 62.5Mb/s.

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