2. Pin Diagram
ADM8628
802.11b Access Point/Home Gateway
Product Overview
ADMtek
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com.tw
Information in this document is provided in connection with ADMtek products. ADMtek may make
changes to specifications and product descriptions at any time, without notice. Designers must not rely on
the absence or characteristics of any features or instructions marked "reserved" or "undefined". ADMtek
reserves these for future definition and shall have no responsibility whatsoever for conflicts or
incompatibilities arising from future changes to them
The products may contain design defects or errors know as errata, which may cause the product to deviate
from published specifications. Current characterized errata are available on request. To obtain latest
documentation please contact you local ADMtek sales office or visit ADMtek's website at
http://www.ADMtek.com.tw
Copyright 2003 by ADMtek Incorporated All Rights Reserved.
*Third-party brands and names are the property of their respective owners.
ADM8628
Product Review
About this Manual
Structure
This Data sheet contains 3 chapters
Chapter 1
Product Overview
Chapter 2
Pin Diagram
Chapter 3
Function Description
Customer Support
ADMtek Incorporated,
2F, No.2, Li-Hsin Rd.,
Science-based Industrial Park,
Hsinchu, 300, Taiwan, R.O.C.
Sales Information
Tel + 886-3-5788879
Fax + 886-3-5788871
ADMtek Inc.
1
ADM8628
Product Review
1. Product Overview
1.1 Overview
The ADM8628 Access Point is an ARM7TDMI-based networking device that bridges the
Wireless LAN and the Fast Ethernet.
The ADM8628 implements the IEEE 802.11b Wireless LAN MAC AP mode protocol,
the IEEE 802.3 Fast Ethernet protocol and PHY layer, and bridging function. For the
enhanced security specified in IEEE 802.11i, the AES engine with several operation
modes (AES-OCB-128, AES-CBC and AES-CNT) are provided. WEP, TKIP hardware
engines are also provided to parse packets, executing the encryption and decryption
process automatically when key is hit in key table without bothering CPU. There are four
shared keys and 64 individual keys stored in the ASIC. More keys can be supported in
software level as a superset of ASIC keys. The ADM8628 also reserves the Wireless
LAN MAC station mode to make itself as a pure bridging device from LAN to wireless
LAN to be Media Converter.
Different configurations of FLASH, SDRAM and SRAM devices are allowed for
different applications. The cache controller supports flexible policy to optimize
performance and minimize CPU bus traffic.
The MII interface is supported for customers' applications. This interface can be also set
to reversed-MII to connect switch's MII interface for more LAN ports' applications.
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ADM8628 could be treated as a network processor to cooperate with some external
devices via SRAM interface.
ADM8628
Product Review
1.2 Features
Architecture Features
Bridging core: ARM7TDMI with 8KB cache
3 DMA engines for direct memory access
1 Wired 10/100 MAC with DSP PHY.
1 wired 10/100 MAC with MII / reversed MII interface.
1 802.11b Wireless MAC.
UART for software debugging and modem interface
Flexible external memory support:
FLASH of up to 16MB
SDRAM of up to 512MB
SRAM of up to 8MB
Standards compliant:
IEEE 802.11b High Rate
IEEE
802.11d
IEEE 802.11i / D3
IEEE
802.3
LEDs:
LED1 (pin 57) on: power on / flash: flash booting
LED2 (pin 58) on: associated / flash: radio traffic
LED3 (pin 32) for LAN1 3A mode on: link / flash: activity
LED4 (pin 34) for LAN1 3A mode on: 100M / off: 10M
LED5 (pin 35) for LAN1 on: full duplex / flash traffic is detected
Packaging: 208PQFP
ARM Core Features
CPU clock: 75MHZ
CPU: AHB: MPMC ratio: (75MHZ: 75MHZ: 75MHZ)
AHB devices: WLAN, LAN1, LAN2, ARM7TDMI, MPMC, TIC
APB devices: UART, watchdog timer
Power management: Processor suspend, system bus suspend
TIC (Test Interface Control): Support manufacturing tests
Debugging interface: JTAG for ARM-multiICE, trace32
Interrupts: FIQ (fast), IRQ (for general interrupts)
Security Related Features
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KEY number:
ADM8628
Product Review
4 Shared KEY / 64 individual KEY shored in ASIC for full WEP/TKIP
support
Software expandability: up to 128 keys can be maintained in software level,
depending on different software implementation
Pre-RSN:
Authentication / Encryption: RSA RC-4 with key length of either 40 or 104
bits WEP.
802.11i - RSN (Robust Security Network):
TKIP hardware fully supports 802.11i/D3
AES / AES-OCB-128 / AES-CNT / AES-CBC engine to offload CPU
Beacon / probe response supports RSN information element
TKIP 48bit Sequence Counter supports for each MPDU for anti-replay
purpose
802.11d Multi-regulatory
Beacon / probe response supports CI (Country Information)
Software Features
Security: 802.1X support /EAP-TLS
Standards: SNMP v2
Roaming:
DHCP
IAPP (802.11f/r3)
Manageability: Configure, monitor, and manage using WEB browser anywhere.
Local configuration also provided
Client Access Control via
MAC
address
802.11
Authentication
(Pre-RSN)
802.1X
Authentication
(RSN)
SSID
Embedded HTTP server
SNMPv2 traps for MIB access, SNMP alarm
Web-firmware upgradeable, telnet, BOOTP, TFTP
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RS232C, Web-configurable
Document Outline
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