鈥?/div>
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 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
廬
RISC Processor
Integrates a Bootstrap ROM Supporting Firmware Uploading from a Serial DataFlash
廬
Glueless Parallel Flash Memory Interface, Supporting up to 128 KBytes of Nonvolatile
Memory
Glueless External SRAM Interface for all MAC Operations, Supporting up to
128 KBytes 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 9 GPIO Pins
144-ball LFBGA Package
Low-voltage 1.8V Operation
802.11b Media
Access
Controller
(MAC) and
Baseband with
USB Master
Capabilities
AT76C507
Summary
Block Diagram
SPI Interface
USB Master
Interface
Timers
Boot ROM
ARM7TDMI
External
Memory
Interface
Common Memory
Interface Controller
Decoder/
Arbiter/
Bridge
MAC Support
Unit (MSU)
Interrupt
Controller
Internal
Memory
(SRAM)
802.11b
Baseband
Encryption/
Decryption
Block
2384AS鈥揥LAN鈥?1/04
Note: This is a summary document. A complete document
is available under NDA. For more information, please con-
tact your local Atmel sales office.
ATMEL
1
2
3
