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AT76C520 Datasheet

  • AT76C520

  • Network Processor

  • 4頁

  • ATMEL   ATMEL

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Features
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Routing Functions Running on ARM946ES
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Interworking Processor with 8K Data
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Cache and 8K Instruction Cache Memory
Two Ethernet 10/100T-Base MAC Units with MII Interface to External PHY
Maximum Sustainable Wired Bandwidth: 200Mbs (Half Duplex) or 400 Mbs (Full
Duplex)
WLAN ARM7TDMI
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with Direct Access to Communication Peripherals
WLAN Hardware MAC Block (WHMB) Controlled by ARM7
廬
, Supports 802.11a/b/g MAC
Functions and Provides Serial or Parallel Interface to External 802.11 PHYs
Atmel Common Memory Bus Architecture (COMBA) Guarantees No Bottleneck when
All Communication Peripherals are Concurrently Used
Hardware Security Accelerators Attached to the Common Bus Offer Instantaneous
Encryption/Decryption and Authentication Support for the Following Algorithms:
鈥?CCM/CTR/CBC Modes of Advanced Encryption Standard (AES)
鈥?IPSEC Block Supports DES/3DES and Hash Functions (MD5, SHA-1)
鈥?TKIP
鈥?RC-4, WEP 64/128 Bit-Key (Part of the WHMB)
PCI Bus Interface (Master/Slave) Compliant with PCI v 2.2
SPI Master/Slave Interface, UART, and Watchdog Timer Interface
UTOPIA Level 1 or 2 Interface Supporting up to 3 PHYs
Two USB Full-speed (12 Mbps) Ports
24 GPIOs Can Be Configured to Provide Specific Functions such as UART Interface
wWith Full Modem Control Signaling or 8-bit SRAM/ Flash Interface
32-bit SDRAM Interface
32-bit SRAM Interface
1.8 Volt Core Voltage Supply
3.3 Volt I/O Voltage Supply
324-pin BGA package
Network
Processor
AT76C520
Summary
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Network Processor Interfaces
GPIOs
PCI/Cardbus
Master/Slave
USB
(Host)
SPI Connection
802.11
(a/g/b)
PHY
AT76C520
UART Connection
ETH
PHY
SDRAM
SRAM/
Flash
Utopia
L1/2
PCMCIA
Host
5643AS鈥揥LAN鈥?2/04
Note: This is a summary document. A complete document is
available under NDA. For more information, please contact
your local Atmel sales office.

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