Lans mac information technology - international standardized profile tannnn - connection - mode transport service over connectionless - mode network service - mac sublayer and physical layer dependent requirements for a token ring lan subnetwork 信息技術(shù).國際標準輪廓tannnn .無連接方式服務上的連接方式的傳送服務.第13部分:采用環(huán)形局域子網(wǎng)絡
Information technology . international standardized profile tannnn . connection - mode transport service over connectionless - mode network service . part 13 : mac sublayer and physical dependent requirements for a token ring lan subnetwork . european standard en isp 10608 - 13 信息技術(shù).國際標準輪廓tannnn .無連接式網(wǎng)絡服務上的連接式傳送服務.第13部分:記號環(huán)型子網(wǎng)絡用與mac部分層和位傳輸層相關(guān)的要求
This card largely depends on three integrate chips to fulfill its function : 1 ) nic control main chip , corresponding the mac sublayer of ethernet , to realize csma / cd media access protocol , manage the sending and receiving buffers integrated on the chip and provide motherboard pci interface . 2 ) serdes ( serializing and deserializing ) chip , corresponding pcs and pma sublayers in ethernet , mainly to complete 8b / 10b coding and convert 10 bits parallel data to serial data , and convert them again at the receiving end . 3 ) fibre transceiver unit , completing light - electrical conversion of seri 該網(wǎng)卡主要由3塊集成的芯片完成其功能,分別是i )網(wǎng)絡控制主芯片,對應于以太網(wǎng)的mac子層,主要完成csmaicd介質(zhì)訪問協(xié)議,管理片上集成的發(fā)送和接收緩沖區(qū),并提供和主板p0總線的接口: b ) s rd s (串行解串行化器)芯片,對應于以太同的pcs和pma子層,主要完成sb lob編碼并將10位并行的數(shù)據(jù)轉(zhuǎn)換為串行數(shù)據(jù),在接收端完成相反的功能:涌)光纖收發(fā)器,完成串行數(shù)據(jù)的光電轉(zhuǎn)換功能。