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)： 24/61頁(yè)
文件大?。?/td> 1743K
代理商： ADM6996L
ADM6996L
Function Description
3.10 Automatic Link Polarity Detection
ADM6996L’s 10Base-T transceiver module incorporates an “automatic link polarity
detection circuit”. The inverted polarity is determined when seven consecutive link pulses
of inverted polarity or three consecutive packets are received with inverted end-of-packet
pulses. If the input polarity is reversed, the error condition will be automatically corrected
and reported in bit 5 of register 10h.
3.11 Clock Synthesizer
The ADM6996L implements a clock synthesizer that generates all the reference clocks
needed from a single external frequency source. The clock source must be a TTL level
signal at 25 MHz +/- 50ppm
3.12 Auto Negotiation
The Auto Negotiation function provides a mechanism for exchanging configuration
information between two ends of a link segment and automatically selecting the highest
performance mode of operation supported by both devices. Fast Link Pulse (FLP) Bursts
provide the signaling used to communicate auto negotiation abilities between two devices
at each end of a link segment. For further detail regarding auto negotiation, refer to
Clause 28 of the IEEE 802.3u specification. The ADM6996L supports four different
Ethernet protocols, so the inclusion of auto negotiation ensures that the highest
performance protocol will be selected based on the ability of the link partner.
Highest priority relative to the following list:
100Base-TX full duplex (highest priority)
100Base-TX half duplex
10Base-T full duplex
10Base-T half duplex (lowest priority)
3.13 Memory Block
ADM6996L build in memory is divided as two blocks. One is MAC addressing table and
another one is data buffer.
MAC address Learning Table size is 2048 entry with each entry occupy eight bytes
length. These eight bytes data include 6 bytes source address, VLAN information, Port
information and Aging counter.
Data buffer is divided to 256 bytes/block. ADM6996L buffer management is per port
fixed block number and all port share one global buffer. This architecture can get better
memory utilization and network balance on different speed and duplex test condition.
Received packet will separate as several 256 bytes/block and chain together. If packet
size more than 256 bytes then ADM6996L will chain two or more block to store
receiving packet.
Infineon-ADMtek Co. Ltd.
3-8
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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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