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LXT975AHC 参数 Datasheet PDF下载

LXT975AHC图片预览
型号: LXT975AHC
PDF下载: 下载PDF文件 查看货源
内容描述: 快速以太网10/100四收发器 [Fast Ethernet 10/100 Quad Transceivers]
分类和应用: 网络接口电信集成电路电信电路以太网局域网(LAN)标准以太网:16GBASE-T
文件页数/大小: 74 页 / 1026 K
品牌: INTEL [ INTEL ]
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Fast Ethernet 10/100 Quad Transceivers — LXT974/LXT975  
Contents  
1.0  
2.0  
Pin Assignments and Signal Descriptions....................................................10  
Functional Description...........................................................................................19  
2.1  
2.2  
Introduction..........................................................................................................19  
Network Media / Protocol Support.......................................................................20  
2.2.1 10/100 Mbps Network Interface .............................................................20  
2.2.1.1 Twisted-Pair Interface ...............................................................20  
2.2.1.2 Fiber Interface ...........................................................................21  
2.2.2 MII Interface ...........................................................................................21  
2.2.2.1 MII Data Interface......................................................................21  
2.2.2.2 MII Management Interface ........................................................24  
2.2.3 Hardware Control Interface ....................................................................25  
Initialization..........................................................................................................27  
2.3.1 MDIO Control Mode ...............................................................................27  
2.3.2 Manual Control Mode.............................................................................27  
2.3.3 Link Configuration ..................................................................................28  
Auto-Negotiation..................................................................................................29  
2.4.1 Parallel Detection ...................................................................................29  
2.4.2 Controlling Auto-Negotiation ..................................................................29  
2.4.3 Monitoring Auto-Negotiation...................................................................29  
100 Mbps Operation............................................................................................30  
2.5.1 100BASE-X MII Operations....................................................................30  
2.5.2 100BASE-X Network Operations ...........................................................30  
2.5.3 100BASE-X Protocol Sublayer Operations ............................................33  
2.5.4 PCS Sublayer.........................................................................................33  
2.5.4.1 Preamble Handling....................................................................33  
2.5.4.2 Data Errors................................................................................34  
2.5.4.3 Collision Indication ....................................................................34  
2.5.5 PMA Sublayer ........................................................................................35  
2.5.5.1 Link............................................................................................35  
2.5.5.2 Link Failure Override.................................................................35  
2.5.5.3 Carrier Sense (CRS) .................................................................35  
2.5.6 Twisted-Pair PMD Sublayer ...................................................................35  
2.5.6.1 Scrambler/Descrambler (100TX Only) ......................................35  
2.5.6.2 Baseline Wander Correction .....................................................36  
2.5.6.3 Polarity Correction.....................................................................36  
2.5.7 Fiber PMD Sublayer...............................................................................36  
10 Mbps Operation..............................................................................................36  
2.6.1 10BASE-T MII Operation........................................................................36  
2.6.2 10BASE-T Network Operations..............................................................36  
2.6.2.1 Preamble Handling....................................................................37  
2.6.2.2 Link Test....................................................................................37  
2.6.2.3 Link Failure................................................................................37  
2.6.2.4 SQE (Heartbeat)........................................................................37  
2.6.2.5 Jabber .......................................................................................37  
LED Functions.....................................................................................................37  
2.7.1 Serial LED Output ..................................................................................38  
2.3  
2.4  
2.5  
2.6  
2.7  
Datasheet  
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