View AT76C902_441002.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

Features
* ARM946E-STM Core (ARM9) for implementing the VoIP Protocol, TCP/IP, VPN and
Controlling the Phone Functions with Internal 8K Instruction Cache and 8K Data Cache Used for Fast Execution of the Communications Protocols and RTOS with Reduced Power Consumption ARM7TDMITM Core (ARM7) for Implementing the 802.11 MAC Layer Configurable Memory Banks to Assign Memory where Best Needed in Chip 16-bit Dual-MAC DSP for Implementing the G.723.1, G.729 and G.711.1 Standards, in Addition to Acoustic Echo Cancellation Integrated Audio Codec with Two Differential Multiplexed Microphone Inputs, One Differential Speaker Output and One Differential Auxiliary Output Path Glueless External Memory Interface Supporting up to 16 MB of External SRAM, 16 MB of Flash and 512 MB of SDRAM Hardware Security Accelerators Attached to the Common Bus Offer Instantaneous Encryption/Decryption and Authentication Support for the Following Algorithms: CCM/CTR/CBC Modes of Advanced Encryption Standard (AES) DES/3DES,WEP64/128, Temporal Key Integrity Protocol (TKIP) and MD-5, SHA-1 Hash Functions for IP Security USB Slave Interface (Control, Interrupt, Bulk-in and Bulk-out Endpoints) UART with Support to be used as USART Serial Peripheral Interface (SPI) and Two Wire Serial Interface (TWI) 64-key Keypad Interface 4x4 LED Matrix Controller Minimum of 5 GPIO Pins (up to 62 Available on Configuration) 208-lead BGA Package 1.8 Volt Core Voltage Supply 3.3 Volt I/O Voltage Supply
* * * * * *
Wireless VoIP Processor Implementing the 802.11 Standard AT76C902 Summary
* * * * * * * * *
Figure 0-1.
Typical Application Using AT76C902
n Usin Flash 76 C9 02 SRAM
AT76C902
External Bus Interface
ARM7TDMI 802.11 MAC 802.11 Interface DSP Subsystem 802.11 PHY
ARM946E-S Protocol Handling Control
Peripherals Audio Codec TWI Bus Speaker Microphone Audio to Headset - Battery Management - Voltage regulation - LCD Bias - Other Phone ASICs Serial Port Accessory Controls Battery Charge Voltage
5655AS-VoIP-09/06
NOTE: This is a summary document. The complete document is available under NDA. For more information, please contact your local Atmel sales office.
1. Description
AT76C902 is a highly integrated ASSP that can be used as part of a wireless phone that utilizes an 802.11a/b/g wireless LAN medium and carries voice over IP (VoIP) packets. Specified in this datasheet, an ARM(R) processor based subsystem performs all of the PLCP and low MAC functions and baseband operations defined in 802.11a/b/g. A TeakDSPCoreTMand an internal CODEC perform the decoding and encoding of voice traffic. An interrupt controller and multiple support peripherals are also included.
1.1
Applications
The VoIP baseband device is intended to be used in a wireless phone which operates by encapsulating voice data within IP frames and transmitting the frames over a contention based wireless medium. Specifically, the first application of the device is targeted at a wireless phone operating on an 802.11a/b/g wireless LAN at 2.4 GHz and at 5.2 GHz (using 802.11a). Figure 0-1 shows an example of the device being utilized in a wireless phone.
2
AT76C902 Summary
5655AS-VoIP-09/06
Atmel Corporation
2325 Orchard Parkway San Jose, CA 95131, USA Tel: 1(408) 441-0311 Fax: 1(408) 487-2600
Atmel Operations
Memory
2325 Orchard Parkway San Jose, CA 95131, USA Tel: 1(408) 441-0311 Fax: 1(408) 436-4314
RF/Automotive
Theresienstrasse 2 Postfach 3535 74025 Heilbronn, Germany Tel: (49) 71-31-67-0 Fax: (49) 71-31-67-2340 1150 East Cheyenne Mtn. Blvd. Colorado Springs, CO 80906, USA Tel: 1(719) 576-3300 Fax: 1(719) 540-1759
Regional Headquarters
Europe
Atmel Sarl Route des Arsenaux 41 Case Postale 80 CH-1705 Fribourg Switzerland Tel: (41) 26-426-5555 Fax: (41) 26-426-5500
Microcontrollers
2325 Orchard Parkway San Jose, CA 95131, USA Tel: 1(408) 441-0311 Fax: 1(408) 436-4314 La Chantrerie BP 70602 44306 Nantes Cedex 3, France Tel: (33) 2-40-18-18-18 Fax: (33) 2-40-18-19-60
Biometrics/Imaging/Hi-Rel MPU/ High-Speed Converters/RF Datacom
Avenue de Rochepleine BP 123 38521 Saint-Egreve Cedex, France Tel: (33) 4-76-58-30-00 Fax: (33) 4-76-58-34-80
Asia
Room 1219 Chinachem Golden Plaza 77 Mody Road Tsimshatsui East Kowloon Hong Kong Tel: (852) 2721-9778 Fax: (852) 2722-1369
ASIC/ASSP/Smart Cards
Zone Industrielle 13106 Rousset Cedex, France Tel: (33) 4-42-53-60-00 Fax: (33) 4-42-53-60-01 1150 East Cheyenne Mtn. Blvd. Colorado Springs, CO 80906, USA Tel: 1(719) 576-3300 Fax: 1(719) 540-1759 Scottish Enterprise Technology Park Maxwell Building East Kilbride G75 0QR, Scotland Tel: (44) 1355-803-000 Fax: (44) 1355-242-743
Japan
9F, Tonetsu Shinkawa Bldg. 1-24-8 Shinkawa Chuo-ku, Tokyo 104-0033 Japan Tel: (81) 3-3523-3551 Fax: (81) 3-3523-7581
Literature Requests
www.atmel.com/literature
Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN ATMEL'S TERMS AND CONDITIONS OF SALE LOCATED ON ATMEL'S WEB SITE, ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED OR STATUTORY WARRANTY RELATING TO ITS PRODUCTS INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, CONSEQUENTIAL, PUNITIVE, SPECIAL OR INCIDENTAL DAMAGES (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF PROFITS, BUSINESS INTERRUPTION, OR LOSS OF INFORMATION) ARISING OUT OF THE USE OR INABILITY TO USE THIS DOCUMENT, EVEN IF ATMEL HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Atmel makes no representations or warranties with respect to the accuracy or completeness of the contents of this document and reserves the right to make changes to specifications and product descriptions at any time without notice. Atmel does not make any commitment to update the information contained herein. Unless specifically provided otherwise, Atmel products are not suitable for, and shall not be used in, automotive applications. Atmel's products are not intended, authorized, or warranted for use as components in applications intended to support or sustain life.
(c) 2006 Atmel Corporation. All rights reserved. Atmel(R), logo and combinations thereof, Everywhere You Are (R) and others are registered trademarks or trademarks of Atmel Corporation or its subsidiaries. ARM(R), ARM Powered(R)logo and others are registered trademarks or trademarks of ARM Ltd. TeakDSPCoreTM is a trademark of DSP Group Inc. Other terms and product names may be trademarks of others.
5655AS-VoIP-09/06

▲Up To Search▲

Price & Availability of AT76C902

	To Download AT76C902 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .