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CS8900A 参数 Datasheet PDF下载

CS8900A图片预览
型号: CS8900A
PDF下载: 下载PDF文件 查看货源
内容描述: 水晶局域网? ISA以太网控制器 [Crystal LAN ⑩ ISA Ethernet Controller]
分类和应用: 控制器局域网以太网
文件页数/大小: 128 页 / 1360 K
品牌: CIRRUS [ CIRRUS LOGIC ]
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CS8900A  
Crystal LAN™ ISA Ethernet Controller  
3.4.7.1 Determining EEPROM Size ............................................................................................. 23  
3.4.7.2 Loading Configuration Data ............................................................................................. 24  
3.4.8 EEPROM Read-out Completion................................................................................................ 24  
3.5 Programming the EEPROM................................................................................................................ 24  
3.5.1 EEPROM Commands................................................................................................................ 24  
3.5.2 EEPROM Command Execution................................................................................................. 24  
3.5.3 Enabling Access to the EEPROM ............................................................................................. 25  
3.5.4 Writing and Erasing the EEPROM............................................................................................. 25  
3.6 Boot PROM Operation ........................................................................................................................ 25  
3.6.1 Accessing the Boot PROM........................................................................................................ 25  
3.6.2 Configuring the CS8900A for Boot PROM Operation................................................................ 25  
3.7 Low-Power Modes .............................................................................................................................. 26  
3.7.1 Hardware Standby..................................................................................................................... 26  
3.7.2 Hardware Suspend.................................................................................................................... 26  
3.7.3 Software Suspend ..................................................................................................................... 27  
3.8 LED Outputs........................................................................................................................................ 28  
3.8.0.1 LANLED ........................................................................................................................... 28  
3.8.0.2 LINKLED or HC0.............................................................................................................. 28  
3.8.0.3 BSTATUS or HC1 ............................................................................................................ 28  
3.8.1 LED Connection ........................................................................................................................ 28  
3.9 Media Access Control ......................................................................................................................... 28  
3.9.1 Overview.................................................................................................................................... 28  
3.9.2 Frame Encapsulation and Decapsulation.................................................................................. 29  
3.9.2.1 Transmission.................................................................................................................... 29  
3.9.2.2 Reception......................................................................................................................... 29  
3.9.2.3 Enforcing Minimum Frame Size....................................................................................... 29  
3.9.3 Transmit Error Detection and Handling ..................................................................................... 30  
3.9.3.1 Loss of Carrier.................................................................................................................. 30  
3.9.3.2 SQE Error......................................................................................................................... 30  
3.9.3.3 Out-of-Window (Late) Collision ........................................................................................ 30  
3.9.3.4 Jabber Error ..................................................................................................................... 30  
3.9.3.5 Transmit Collision............................................................................................................. 30  
3.9.3.6 Transmit Underrun ........................................................................................................... 30  
3.9.4 Receive Error Detection and Handling ...................................................................................... 31  
3.9.4.1 CRC Error ........................................................................................................................ 31  
3.9.4.2 Runt Frame ...................................................................................................................... 31  
3.9.4.3 Extra Data ........................................................................................................................ 31  
3.9.4.4 Dribble Bits and Alignment Error...................................................................................... 31  
3.9.5 Media Access Management ...................................................................................................... 31  
3.9.5.1 Collision Avoidance.......................................................................................................... 31  
3.9.5.2 Two-Part Deferral............................................................................................................. 31  
3.9.5.3 Simple Deferral ................................................................................................................ 32  
3.9.5.4 Collision Resolution.......................................................................................................... 32  
3.9.5.5 Normal Collisions ............................................................................................................. 32  
3.9.5.6 Late Collisions.................................................................................................................. 33  
3.9.5.7 Backoff ............................................................................................................................. 33  
3.9.5.8 Standard Backoff.............................................................................................................. 33  
3.9.5.9 Modified Backoff............................................................................................................... 33  
3.9.5.10 SQE Test........................................................................................................................ 33  
3.10 Encoder/Decoder (ENDEC) .............................................................................................................. 34  
3.10.1 Encoder ................................................................................................................................... 34  
3.10.2 Carrier Detection ..................................................................................................................... 34  
3.10.3 Clock and Data Recovery........................................................................................................ 34  
CIRRUS LOGIC PRODUCT DATA SHEET  
DS271PP3  
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