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CN8474AEBG  Multichannel Synchronous Communications Controller (MUSYCC)

Description:

The CN8478, CN8474A, CN8472A, and CN8471A are advanced Multichanne

Synchronous Communication Controllers (MUSYCCs) that format and deform

to 256 (CN8478), 128 (CN8474A), 64 (CN8472A), or 32 (CN8471A) HDLC

channels in a single CMOS integrated circuit. MUSYCC operates at Layer 2 o

Open Systems Interconnection (OSI) protocol reference model. MUSYCC pro

a comprehensive, high-density solution for processing HDLC channels for

internetworking applications such as frame Relay, ISDN D-channel signaling

X.25, Signaling System 7 (SS7), DXI, ISUP, and LAN/WAN data transport. U

minimal host supervision, MUSYCC manages a linked list of channel data bu

in host memory by performing Direct Memory Access (DMA) of the HDLC

channels.

Applications:

• ISDN basic-rate or primary-rate interfaces

• ISDN D-channel controller

•Routers

• Cellular base station switch controller

• CSU/DSU

• Protocol converter

• Packet data switch

• frame relay switches/frame Relay Access

Devices (FRAD)

• DXI network interface

• Distributed packet-based communications

system

• Access multiplexer/concentrator

Specifications:

part no.

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