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CS181002-CQ/A1

Digital Audio Networking Processor

Cirrus Logic 

CobraNet Hardware User’s Manual

Features

2.0 Features

2.1 CobraNet

• Real-time Digital Audio Distribution via Ethernet

• No Overall Limit on Network Channel Capacity

• Fully IEEE 802.3 Ethernet Standards Compliant

• Fiber optic and gigabit Ethernet variants are fully supported.

• Ethernet infrastructure can be used simultaneously for audio and data

communications.

• Free CobraCAD™ Audio Network Design Tool

• High-quality Audio Sample Clock Delivery Over Ethernet

• Bit-transparent 16-, 20-, and 24-bit Audio Transport

• Professional 48-kHz and 96-kHz sample rate

• Select Latency as Low as 1.33ms

• Flexible Many-to-many Network Audio Routing Capabilities

• Reduced-cost, Improved-performance, Convergent Audio Distribution

Infrastructure

2.2 CobraNet Interface

• 120 MIPS Customer-configurable Audio DSP

• Auto-negotiating 100Mbit Full-duplex Ethernet Connections

• Up to 32-channel Audio I/O Capability

• Implements CobraNet Protocol for real-time transport of audio over Ethernet.

• Local Management via 8-bit Parallel Host Port

• UDP/IP Network Stack with Dynamic IP Address Assignment via BOOTP or

RARP

• Remote Management via Simple Network Management Protocol (SNMP)

• Economical Three-chip Solution

• Available Module form factor allows for flexible integration into audio products.

• Non-volatile Storage of Configuration Parameters

• Safely Upgrade Firmware Over Ethernet Connection

• LED Indicators for Ethernet Link, Activity, Port Selection, and Conductor Status

• Watchdog Timer Output for System Integrity Assurance

• Comprehensive Power-on Self-test (POST)

• Error and Fault Reporting and Logging Mechanisms

6

©Copyright 2005 Cirrus Logic, Inc.

DS651UM23

Version 2.3

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