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CS7808-CM Datasheet(PDF) 2 Page - Cirrus Logic

Part No. CS7808-CM
Description  MULTI PURPOSE AUDIO/VIDEO EMBEDDED PROCESSOR
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Maker  CIRRUS [Cirrus Logic]
Homepage  http://www.cirrus.com
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CS7808-CM Datasheet(HTML) 2 Page - Cirrus Logic

 
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CS7808
2
TABLE OF CONTENTS
1. CHARACTERISTICS AND SPECIFICATIONS ........................................................................ 5
1.1 AC and DC Parametric Specifications ............................................................................... 5
1.1.1 Absolute Maximum Rating .................................................................................... 5
1.1.2 Recommended Operating Conditions ................................................................... 5
1.1.3 Electrical Characteristics ...................................................................................... 6
1.2 DC Characteristics ............................................................................................................. 7
1.2.1 Host Interface ........................................................................................................ 7
1.2.2 SDRAM Interface .................................................................................................. 8
1.2.3 ROM/NVRAM Interface ...................................................................................... 10
1.2.4 Video Output Interface ........................................................................................ 11
1.2.5 Video Input Interface ........................................................................................... 12
1.2.6 Audio Input Interface ........................................................................................... 13
1.2.7 Audio Output Interface ........................................................................................ 14
1.2.8 AC97/CODEC Interface ...................................................................................... 15
1.2.9 Miscellaneous Interface Timing ........................................................................... 16
2. TYPICAL APPLICATION ........................................................................................................ 17
3. FUNCTIONAL DESCRIPTION ............................................................................................... 18
3.1 Block Diagram .................................................................................................................. 18
3.2 CS7808 Device Details .................................................................................................... 18
3.2.1 RISC-32 Processors ........................................................................................... 18
3.2.2 Powerful 32-Bit DSP ........................................................................................... 18
3.2.3 System Controls .................................................................................................. 18
3.2.4 Memory Controller ............................................................................................... 19
3.2.5 Data Flow Engine ................................................................................................ 19
3.2.6 Audio Interface .................................................................................................... 19
3.2.7 Video Input .......................................................................................................... 19
3.2.8 External Interface ................................................................................................ 19
3.2.9 Video Processor .................................................................................................. 19
3.2.10 Cursor ............................................................................................................... 19
3.2.11 System Functions .............................................................................................. 20
3.3 RISC Processor ............................................................................................................... 20
3.4 DSP Processor ................................................................................................................ 20
3.5 Memory Control ............................................................................................................... 20
3.6 Dataflow Control (DMA) ................................................................................................... 20
3.7 System Control Functions ................................................................................................ 20
Contacting Cirrus Logic Support
For a complete listing of Direct Sales, Distributor, and Sales Representative contacts, visit the Cirrus Logic web site at:
http://www.cirrus.com/corporate/contacts/
Preliminary product information describes products which are in production, but for which full characterization data is not yet available. Advance product information de-
scribes products which are in development and subject to development changes. Cirrus Logic, Inc. has made best efforts to ensure that the information contained in this
document is accurate and reliable. However, the information is subject to change without notice and is provided “AS IS” without warranty of any kind (express or implied).
Customers are advised to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All prod-
ucts are sold subject to the terms and conditions of sale supplied at the time of order acknowledgment, including those pertaining to warranty, patent infringement, and
limitation of liability. No responsibility is assumed by Cirrus Logic, Inc. for the use of this information, including use of this information as the basis for manufacture or sale
of any items, nor for infringements of patents or other rights of third parties. This document is the property of Cirrus Logic, Inc. and by furnishing this information, Cirrus
Logic, Inc. grants no license, express or implied under any patents, mask work rights, copyrights, trademarks, trade secrets or other intellectual property rights of Cirrus
Logic, Inc. Cirrus Logic, Inc., copyright owner of the information contained herein, gives consent for copies to be made of the information only for use within your organization
with respect to Cirrus Logic integrated circuits or other parts of Cirrus Logic, Inc. The same consent is given for similar information contained on any Cirrus Logic web site
or disk. This consent does not extend to other copying such as copying for general distribution, advertising or promotional purposes, or for creating any work for resale. The
names of products of Cirrus Logic, Inc. or other vendors and suppliers appearing in this document may be trademarks or service marks of their respective owners which
may be registered in some jurisdictions. A list of Cirrus Logic, Inc. trademarks and service marks can be found
at http://www.cirrus.com.
Purchase of I2C components of Cirrus Logic, Inc., or one of its sublicensed Associated Companies conveys a license under the Phillips I2C Patent Rights to use those
components in a standard I2C system.


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