文件名称：5718-PG106-R
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更新时间：2017-10-07 05:04:33
BCM5718 data sheet
BCM5718用户手册 Table of Contents About This Document...................................................................................................................................45 Purpose and Audience ...........................................................................................................................45 Acronyms and Abbreviations.................................................................................................................45 Document Conventions .........................................................................................................................45 References .............................................................................................................................................46 Technical Support.........................................................................................................................................47 Section 1: Introduction.................................................................................................... 48 Product Features ..........................................................................................................................................48 Revision Levels .............................................................................................................................................50 Programming the Ethernet Controllers .......................................................................................................51 Section 2: Hardware Architecture.................................................................................... 52 Theory of Operation.....................................................................................................................................52 Overview of Features ...................................................................................................................................53 Receive Data Path.........................................................................................................................................55 RX Engine ...............................................................................................................................................55 RX FIFO...................................................................................................................................................55 Rules Checker.........................................................................................................................................56 RX List Initiator.......................................................................................................................................56 Transmit Data Path.......................................................................................................................................57 TX MAC ..................................................................................................................................................57 TX FIFO ...................................................................................................................................................57 DMA Read.....................................................................................................................................................58 Read Engine ...........................................................................................................................................58 Read FIFO...............................................................................................................................................58 Buffer Manager......................................................................................................................................59 DMA Write....................................................................................................................................................59 Write Engine ..........................................................................................................................................59 Write FIFO..............................................................................................................................................59 Buffer Manager......................................................................................................................................60 LED Control ...................................................................................................................................................60 Memory Arbiter............................................................................................................................................60 Host Coalescing.............................................................................................................................................61 Host Coalescing Engine ..........................................................................................................................61 MSI FIFO.................................................................................................................................................62