參數(shù)資料
型號(hào)： GT-48004A
廠商： Galileo Technology Services, LLC
英文描述： Four Port Switched Fast Ethernet Controller(四端口、交換式快速以太網(wǎng)控制器)
中文描述： 四端口交換式快速以太網(wǎng)控制器（四端口，交換式快速以太網(wǎng)控制器）
文件頁(yè)數(shù)： 85/106頁(yè)
文件大?。?/td> 953K
代理商： GT-48004A
GT-48004A Four Port Switched Fast Ethernet Controller
N:\Marketing\Docs\Archive\48004A\DATASHEET\Rev 1.0\484ads10.fm
Revision 1.0
8
Figure 1: Typical 16-port 10/100-Mbps Switch Implementation
1.3
Address Recognition
Each GT-48004A in a system can recognize up to 8,000 different Unicast MAC addresses and unlimited Multicast/
Broadcast MAC addresses. An intelligent address recognition mechanism enables filtering and forwarding packets at
full Fast Ethernet wire speed. Hardware assist for address aging and static addresses is also included.
The GT-48004A provides an address self-learning mechanism. Each device has a private address table located in its
DRAM array. As the GT-48004A learns new addresses, it updates all address tables in the system via the GalNet mes-
saging protocol.
1.4
CPU Packet Routing
The GT-48004A has the capability to automatically forward certain packets to the CPU for routing including:
Unicast packets with a destination address tagged for the CPU
Multicast packets
Unknown packets (packets with MAC addresses that have not been recognized)
This gives the system designer the flexibility to decide how to handle such packets in a managed system.
1.5
Intervention Mode
The GT-48004A incorporates an enhanced feature called
intervention mode. This feature permits software or hardware
intervention in the packet routing decision mechanisms for unicast packets. When intervention mode is selected for a
MAC address, the GT-48004A sends the packet to the system CPU instead of switching it as usual. This capability can
be used for many functions including: layer 3 routing, security, virtual LAN support, filtering and management.
1.6
VLAN Support
The GT-48004A supports port based VLANs that allow for efficient filtering of broadcast/multicast domains as well as
isolation of unicast traffic for security. Each port can be defined to be a member of a single VLAN, or as a member of a
“Super-VLAN” that spans one or more simple VLANs. VLAN support in the GT-48004A is described in detail in a sep-
EDO
DRAM
GT-48004A
4
x
MII
MII PHY
Devices
4 x Fast Ethernet
EDO
DRAM
EDO
DRAM
GT-48004A
4
x
MII
MII PHY
Devices
4 x Fast Ethernet
EDO
DRAM
EDO
DRAM
GT-48004A
4
x
MII
MII PHY
Devices
4 x Fast Ethernet
EDO
DRAM
EDO
DRAM
GT-48004A
4
x
MII
MII PHY
Devices
4 x Fast Ethernet
EDO
DRAM
FAST PCI
MEMORY
CPU
GT-64111
SYSTEM
CONTROLLER
WITH FAST PCI
Management CPU is optional.
相關(guān)PDF資料
PDF描述
GT-48006A Low Cost Two Port 10/100Mbps Ethernet Bridge/Switch Controller(低成本、雙端口10/100Mbps以太網(wǎng)橋式/交換式控制器)
GT-48207 Advanced Switched Ethernet Controllers for 10+10/100 BaseX(高級(jí)交換式 10+10/100 BaseX以太網(wǎng)控制器)
GT-48208 Advanced Switched Ethernet Controllers for 10+10/100 BaseX(高級(jí)交換式 10+10/100 BaseX以太網(wǎng)控制器)
GT-48212 Advanced Switched Ethernet Controllers for 10+10/100 BaseX(高級(jí)交換式 10+10/100 BaseX以太網(wǎng)控制器)
GT-64010A System Controller with PCI Interface for R4XXX/ R5000 Family CPUs(帶PCI接口用于R4XXX/ R5000 系列 CPUs的系統(tǒng)控制器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
GT482 制造商:CORNELL DUBILIER ELECTRONICS 功能描述:Cap Ceramic 82pF 3000V SL 5% (12 X 6mm) Radial 9.5mm 85°C
GT48212-A6-PBB1C000 制造商:Marvell 功能描述:
GT48212-A6-PBB-C000 制造商:Marvell 功能描述:12 PORT E + 2 PORT FE SWITCH (MANAGED) - Trays
GT48300-A1-BBE1C083 制造商:Marvell 功能描述:Marvell GT48300-A1-BBE1C083
GT48300-A1-BBE-C000 制造商:Marvell 功能描述:Marvell GT48300-A1-BBE-C000
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*