CobraNet Digital Audio Networking Processor CobraNet Programmers Reference Version 2.5 This document contains information for a new product. Preliminary Product Information Cirrus Logic reserves the right to modify this product without notice. Copyright 2006 Cirrus Logic, Inc. FEB 06 DS651PM25 CobraNet Features Digital Audio Networking Processor CobraNet Asynchronous serial interface Real-time Digital Audio Distribution via Ethernet Full-duplex Capable No Overall Limit on Network Channel Capacity 8- and 9-bit Data Formats Supports Switched and Repeater Fast Ethernet Networks Standard Baud Rates up to 115.2 kbps Fully IEEE 802.3 Ethernet Standards Compliant Transmitter Tri-state Control for Multi-drop Networking Fiber Optic and Gigabit Ethernet Variants Supported Synchronous Serial audio Interface Ethernet infrastructure can be used simultaneously for 4 Bi-directional Interfaces Supporting Up to 64 Channels audio and data communications. of Audio I/O Free CobraCAD Audio Network Design Tool 48 kHz and 96 kHz Sample Rates High-quality Audio Sample Clock Delivery Over Ethernet 64FS, 128FS, and 256FS Bit Rates Supported Uncompressed 16-, 20-, and 24-bit Audio Transport Supports numerous synchronous serial formats including Professional 48 khz and 96 kHz Sample Rate 2 I S Low (1-1/3 ms) Latency Up to 32-bit Data Resolution Flexible Many-to-many Network Audio Routing Capabilities Audio clock interface Available in a family of modules and low-cost devices, 4 Host Audio Clocking Modes for Maximum Flexibility in most without licensing fees or royalties. Digital Audio Interface Design Low-jitter, 512FS (24.576 MHz) Master Clock Oscillator CobraNet Interface Synchronize to Supplied Master and/or Sample Clock Auto-negotiating, 100-Mbit, Full-duplex Ethernet Sophisticated jitter attenuation assures network Connections perturbations do not affect audio performance. Up to 64 Audio Channel I/O Capability Implements CobraNet protocol for real-time transport of Audio routing and processing audio over ethernet. Single-channel Granularity in Routing from Synchronous Local Management via 8-bit Parallel Host Port Serial Audio Interface to CobraNet Network UDP/IP Network Stack with Dynamic IP Address Two levels of audio routing indirection absorbs any quirks Assignment via BOOTP or RARP in audio I/O interface design in host system. Remote Management via Simple Network Management Local Audio Loopback and Output Duplication Capability Protocol (SNMP) Peak-reading Audio Metering with Ballistics Available module form factor allows for flexible integration into audio products. 120-MIPS Digital Signal Processor Non-volatile Storage of Configuration Parameters Safely Upgrade Firmware over Ethernet Connection LED Indicators for Ethernet Link Activity, Conductor Status, and Fault Annunciation Watchdog Output for System Integrity Assurance Comprehensive Power-on Self Test (POST) Error and Fault Reporting and Logging Mechanisms Host Interface 8-bit Data, 3- or 4-bit Address Virtual 24- or 32-bit Data and Addressing Polled, Interrupt, and DMA Modes of Operation Configure and Monitor CobraNet Interface Transmit and Receive Ethernet Packets at 100-Mbit Wire Speed 2 Copyright 2006 Cirrus Logic, Inc. DS651PM25