CN8471A 查看數據表（PDF） - Conexant Systems

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CN8471A

Multichannel Synchronous Communications Controller (MUSYCC™)

Conexant Systems 

1

1.0 System Description

The Conexant MUSYCC is a high-throughput communications controller for synchronous, link-layer

applications that multiplexes and demultiplexes up to 256 data channels. Each channel can be configured to

support HDLC, Transparent, or SS7 applications. MUSYCC operates at the Layer 2 (the data link protocol

level) reference of the International Organization for Standardization (ISO) Open Systems Interconnection

(OSI). MUSYCC is installed between the multiple serial interface devices and the shared buffer memory of one

or more host processors.

MUSYCC’s serial ports interface to a standard Pulse Code Modulation (PCM) highway, which operates at

T1, E1, 2xE1, or 4xE1 rates. Data can be formatted in the HDLC protocol or left unformatted. The protocol is

specified on a per-channel and direction basis.

An on-device Peripheral Components Interface (PCI) controller, known as the host interface, is provided.

Access to MUSYCC is available through PCI read, write, and configuration cycles (see Figure 1-1).

Figure 1-1. System Block Diagram

System

Host

System

Memory

Local

Bus

PCI

Bridge

JTAG

Host

Interface

(PCI)

Optional

Components

Local

Host

Local

Memory

8478_001

Expansion

Bus

Interface

MUSYCC

EBUS

Serial

Interface 0

Serial

Interface 1

Serial

Interface 2

Serial

Interface 3

Serial

Interface 4

Serial

Interface 5

Serial

Interface 6

Serial

Interface 7

Physical

Interface 0

Physical

Interface 1

Physical

Interface 2

Physical

Interface 3

Physical

Interface 4

Physical

Interface 5

Physical

Interface 6

Physical

Interface 7

100660E

Conexant

1-1

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