F e a t u r e s
■ 175 MHz/227 MIPS 4Kc CPU with an embedded cache, 8K-byte
I-cache and 8K D-cache
■ An embedded memory management unit (MMU) 32-entry TLB
(Translation Lookaside Buffer), with 16 organized entry pairs
■ IEEE 802.3 Fast Ethernet 5 auto-MDIX (auto-crossover) twisted
paired LAN interfaces with embedded 10/100M PHY and 1 MII
interface
■ Flexible WAN port selection and embedded
switch engine and Data-buffer/Addresslook-
up table
■ Look-up table (read/write-able)
■ MAC layer security and MAC clone
■ MAC filtering, Bandwidth control and a
Class of Services (CoS) with two priority
levels
■ Shared dynamic data buffer management
with embedded SSRAM
■ Port grouping VLAN (overlap-able)
■ Supports store & forward

S o f t w a r e F e a t u r e s
■ Linux OS support
■ IEEE 802.3 Ethernet Driver and RS232
Driver for Console User Interface
■ DHCP Server/Client, PPP over Ethernet
(PPPoE), Network Address Translation
(NAT) for IP Address
Mapping/Sharing/Security
■ DNS Proxy, Simple Network Time Protocol
(SNTP) and Firewall

P h y s i c a l C h a r a c t e r i s t i c s
■ CSM CMOS, 0.18 1P5M
■ 208-pin LQFP package
■ 1.8/3.3 V Variable Voltage