參數(shù)資料
型號(hào)： ADM6996L
廠商： INFINEON TECHNOLOGIES AG
英文描述： 6 port 10/100 Mb/s Single Chip Ethernet Switch Controller
中文描述： 6端口10/100 Mb / s的單芯片以太網(wǎng)交換機(jī)控制器
文件頁(yè)數(shù)： 25/61頁(yè)
文件大?。?/td> 1743K
代理商： ADM6996L
ADM6996L
Function Description
3.14 Switch Functional Description
The ADM6996L uses a “store & forward” switching approach for the following reason:
Store & forward switches allow switching between different speed media (e.g. 10BaseX
and 100BaseX). Such switches require the large elastic buffer especially bridging
between a server on a 100Mbps network and clients on a 10Mbps segment.
Store & forward switches improve overall network performance by acting as a “network
cache”
Store & forward switches prevent the forwarding of corrupted packets by the frame check
sequence (FCS) before forwarding to the destination port.
3.15 Basic Operation
The ADM6996L receives incoming packets from one of its ports, searches in the Address
Table for the Destination MAC Address and then forwards the packet to the other port
within same VLAN group, if appropriate. If the destination address is not found in the
address table, the ADM6996L treats the packet as a broadcast packet and forwards the
packet to the other ports which in same VLAN group.
The ADM6996L automatically learns the port number of attached network devices by
examining the Source MAC Address of all incoming packets at wire speed. If the Source
Address is not found in the Address Table, the device adds it to the table.
3.15.1 Address Learning
The ADM6996L uses a hash algorithm to learn the MAC address and can learn up to 2K
MAC addresses. Address is stored in the Address Table. The ADM6996L searches for
the Source Address (SA) of an incoming packet in the Address Table and acts as below:
If the SA was not found in the Address Table (a new address), the ADM6996L waits
until the end of the packet (non-error packet) and updates the Address Table. If the SA
was found in the Address Table, then aging value of each corresponding entry will be
reset to 0.
When the DA is PAUSE command, then the learning process will be disabled
automatically by ADM6996L.
Infineon-ADMtek Co. Ltd.
3-9
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADM6996LAAT1 功能描述:IC SWITCH CTRLR 10/100 128PQFP RoHS:否 類別:集成電路 (IC) >> 接口 - 控制器 系列:- 標(biāo)準(zhǔn)包裝:4,900 系列:- 控制器類型:USB 2.0 控制器 接口:串行 電源電壓:3 V ~ 3.6 V 電流 - 電源:135mA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:36-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:36-QFN（6x6） 包裝:* 其它名稱:Q6396337A
ADM6996L-AA-T-1 制造商:Rochester Electronics LLC 功能描述:ETHERNET SWITCH - Bulk
ADM6996LAAT1NP 制造商:Infineon Technologies AG 功能描述:Ethernet CTLR Single Chip 10Mbps/100Mbps 3.3V 128-Pin MQFP Tray
ADM6996LC 制造商:Infineon Technologies AG 功能描述:
ADM6996LC-AC-R-1 功能描述:IC ETHERNET SW CTRLR 128-PQFP RoHS:否 類別:集成電路 (IC) >> 接口 - 控制器 系列:- 標(biāo)準(zhǔn)包裝:4,900 系列:- 控制器類型:USB 2.0 控制器 接口:串行 電源電壓:3 V ~ 3.6 V 電流 - 電源:135mA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:36-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:36-QFN（6x6） 包裝:* 其它名稱:Q6396337A
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