AT76C509 ATMEL Corporation, AT76C509 Datasheet

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AT76C509

Manufacturer Part Number
AT76C509
Description
Manufacturer
ATMEL Corporation
Datasheet
Features
Block Diagram
Integrates the IEEE 802.11 Physical Layer (Baseband) and the Medium Access
Controller (MAC) for Supporting Standard Rates up to 11 Mbps
Supports Antenna Diversity Algorithm, Automatic Receive Gain Control, Transmit Gain
Control, Transmit Filter for Japanese Regulatory and Differential or Single-ended I- and
Q-Baseband Signals
Integrates 160 KBytes of SRAM which are Organized in Five Banks of 32 KBytes each,
Offering the Flexibility for Individually Configuring Each of Them as Program or Data
Memory
Zero Wait States for Program Execution
Fast Data Transfers through DMA Channels
Low Power ARM7TDMI
Integrates a Bootstrap ROM Supporting Firmware Uploading from a Serial DataFlash
Glueless Parallel Flash Memory Interface, Supporting up to 16 MBytes of Nonvolatile
Memory
Glueless External SRAM Interface for all MAC Operations, Supporting up to 16 MBytes
of External Memory
Wired Equivalency Privacy (WEP) in Hardware Supporting 64-bit and 128-bit Keys
Hardware Implementation of TKIP
Hardware Implementation of AES Encryption Supporting Various Modes
(CCM/CTR/CBC)
The WLAN Functions Can Be Easily Changed or Updated to New Requirements Since
They are Implemented in Microcode
Supports 11 Mbps Rates with Automatic Fallback to 5.5, 2 and 1 Mbps
SPI Interface and 12 GPIO Pins
Supports Two Extension Interfaces: A Full-Speed USB 2.0 Compliant Device and a
Slave PCI Device
208-ball LFBGA Package
Low-voltage 1.8V Operation
Boot ROM
Memory
(SRAM)
Interface
External
Memory
Internal
Interface
SPI
®
RISC Processor
PCI/Mini PCI/USB
Extension Interface
MAC Support
Unit (MSU)
Ethernet
Processor
Baseband
ARM7TDMI
802.11b
Encryption/
Decryption
Decoder/
Arbiter/
Bridge
Note: This is a summary document. A complete document
is available under NDA. For more information, please con-
tact your local Atmel sales office.
Interrupt
Controller
Timers
Block
®
Ethernet to
Wireless Bridge
Low-Cost
Access Point
AT76C509
Summary
2392AS–WLAN–01/04

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AT76C509 Summary of contents

Page 1

... Baseband Encryption/ MAC Support Decryption Unit (MSU) Block Note: This is a summary document. A complete document is available under NDA. For more information, please con- tact your local Atmel sales office. Ethernet to ® Wireless Bridge Low-Cost Access Point AT76C509 Summary 2392AS–WLAN–01/04 ...

Page 2

... WLAN using IP over Ethernet. In case the WLAN user is mobile, roaming functions are also supported. The AT76C509 is also a single-chip MAC Support Unit (MSU) and an 802.11b Base- band Controller that can handle IEEE 802.11b standard compliant data rates Mbps ...

Page 3

... Fax: (81) 3-3523-7581 Disclaimer: Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in the Company’s standard warranty which is detailed in Atmel’s Terms and Conditions located on the Company’s web site. The Company assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein ...

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