參數(shù)資料
型號(hào)： MSC220
廠商： Zarlink Semiconductor Inc.
英文描述： XpressFlow 2020 Ethernet Routing Switch Chipset
中文描述： XpressFlow 2020以太網(wǎng)路由交換機(jī)芯片組
文件頁數(shù)： 3/34頁
文件大?。?/td> 614K
代理商： MSC220
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XpressFlow-2020 Series –
Ethernet Switch Chipset
XpressFlow Engine
SC220
1998
Vertex Networks, Inc.
2 Rev. 4.5 – February
1999
Characteristics Continue
t
Built-in address to port resolution
Embedded 32-bit HISC (High density
Instruction Set Core) Processor
Optimzed architecture for switch appli-
cations
Loadable firmware for easy upgrade
t
Supports unicast, multicast, and broadcast
frames
t
Address Filtering
Destination & Source MAC address
matching & filtering
t
VLAN classification & verification
Up to 62 groups
Level 1 and 2 mapping
VLAN ID tagging & stripping
Auto padding if necessary after stripping
t
Supports Store-&-Forward Frame Forward-
ing Mode
t
Collects statistics for RMON
CONTROL
BUFFER
MEMORY
M
XpressFlow BUS
XpressFlow Bus
Interafce
32
32
32
Automatic
Buffer
Manager
Mngmt
Bus
Interface
32
32
Control
Buffer
Memory
Interface
HISC
I/O
Registers
32
CAM
Interface
ADDRESS
MAPPING
TABLE
32
32
16
HISC Core
32
16
32
32
32
CAM
SRAM
16
SC220
XpressFlow
Engine
Block Diagram –
SC220 XpressFlow Engine
Typical Application
:
A 16-port Ethernet Switch with 4-Fast Ethernet
Address
Mapping
Table
Flash
ROM
SC220
X
pressFlow
Engine
EA208E
8-Port
Ethernet
Access
Controller
Management Bus
Buffer
RAM
Switch
Manager
CPU
DRAM
RS232 Local
Control Console
Buffer
RAM
8 Ethernet ports
Buffer
RAM
8 Ethernet ports
XpressFlow Bus
EA208E
8-Port
Ethernet
Access
Controller
Buffer
RAM
Four 100M
Fast Ethernet ports
EA234
4-Port
Ethernet
Access
Controller
System Block Diagram --
16-Port Ethernet Switch with 4 Fast Ethernet Up-Links
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