Document
CS1810xx, CS4961xx, & CM-2
Digital Audio Networking Processor
CobraNet™
Silicon Series
CS18100x, CS18101x, CS18102x, and CM-2 CS49610x, CS49611x, and CS49612x
Hardware User’s Manual
Version 2.3
Preliminary Product Information
This document contains information for a new product. Cirrus Logic reserves the right to modify this product without notice.
http://www.cirrus.com
©Copyright 2005 Cirrus Logic, Inc.
JUN ’05 DS651UM23
CobraNet Hardware User’s Manual Table of Contents
Table of Contents
List of Figures......................................................................................................................................... 4 1.0 .Introduction ..................................................................................................................................... 5 2.0 Features ........................................................................................................................................... 6
2.1 CobraNet............................................................................................................................. 6 2.2 CobraNet Interface.............................................................................................................. 6 2.3 Host Interface...................................................................................................................... 7 2.4 Asynchronous Serial Interface ............................................................................................ 7 2.5 Synchronous Serial Audio Interface.................................................................................... 7 2.6 Audio Clock Interface .......................................................................................................... 7 2.7 Audio Routing and Processing............................................................................................ 7 3.0 Hardware.......................................................................................................................................... 8 4.0 Pinout and Signal Descriptions ........................................................................................................ 9 4.1 CS1810xx & CS4961xx Package Pinouts......................................................................... 10
4.1.1 CS1810xx/CS4961xx Pinout............................................................................. 10 4.1.2 CM-2 Connector Pinout..................................................................................... 11 4.2 Signal Descriptions ...........................................................................................................12 4.2.1 Host Port Signals ..............................................................................................12 4.2.2 Asynchronous Serial Port (UART Bridge) Signals ............................................ 12 4.2.3 Synchronous Serial (Audio) Signals.................................................................. 13 4.2.4 Audio Clock Signals .......................................................................................... 13 4.2.5 Miscellaneous Signals....................................................................................... 14 4.2.6 Power and Ground Signals ............................................................................... 14 4.2.7 System Signals ................................................................................................. 15 4.3 Characteristics and Specifications .................................................................................... 16 4.3.1 Absolute Maximum Ratings .............................................................................. 16 4.3.2 Recommended Operating Conditions ............................................................... 16 4.3.3 Digital DC Characteristics ................................................................................. 16 4.3.4 Power Supply Characteristics ........................................................................... 16 5.0 Synchronization.............................................................................................................................. 17 5.1 Synchronization Modes..................................................................................................... 17 5.1.1 Internal Mode .................................................................................................... 18 5.1.2 External Word Clock Mode ............................................................................... 18 5.1.3 External Master Clock Mode ............................................................................. 18 6.0 Digital Audio Interface .................................................................................................................... 19 6.1 Digital Audio Interface Timing ........................................................................................... 20 6.1.1 Normal Mode Data Timing ..........