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KSZ8873MLLJ Datasheet(PDF) 4 Page - Micrel Semiconductor |
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KSZ8873MLLJ Datasheet(HTML) 4 Page - Micrel Semiconductor |
4 / 108 page ![]() Micrel, Inc. KSZ8873MLLJ September 2011 4 M9999-091911-1.8 Contents Pin Description and I/O Assignment................................................................................................................................. 11 Pin Configuration ................................................................................................................................................................ 16 Functional Description ....................................................................................................................................................... 17 Functional Overview: Physical Layer Transceiver .......................................................................................................... 17 100BASE-TX Transmit ..................................................................................................................................................... 17 100BASE-TX Receive ...................................................................................................................................................... 17 PLL Clock Synthesizer...................................................................................................................................................... 17 Scrambler/De-scrambler (100BASE-TX Only) ................................................................................................................. 17 10BASE-T Transmit.......................................................................................................................................................... 17 10BASE-T Receive........................................................................................................................................................... 18 MDI/MDI-X Auto Crossover .............................................................................................................................................. 18 Straight Cable ............................................................................................................................................................ 19 Crossover Cable ........................................................................................................................................................ 20 Auto-Negotiation ............................................................................................................................................................... 21 LinkMD ® Cable Diagnostics.............................................................................................................................................. 22 Access ....................................................................................................................................................................... 22 Usage......................................................................................................................................................................... 22 Functional Overview: Power Management....................................................................................................................... 22 Normal Operation Mode ................................................................................................................................................... 23 Energy Detect Mode ......................................................................................................................................................... 23 Soft Power Down Mode .................................................................................................................................................... 23 Power Saving Mode.......................................................................................................................................................... 23 Port based Power Down Mode......................................................................................................................................... 23 Hardware Power Down..................................................................................................................................................... 24 Functional Overview: MAC and Switch ............................................................................................................................ 24 Address Lookup................................................................................................................................................................ 24 Learning ............................................................................................................................................................................ 24 Migration ........................................................................................................................................................................... 24 Aging................................................................................................................................................................................. 24 Forwarding........................................................................................................................................................................ 24 Switching Engine .............................................................................................................................................................. 27 MAC Operation ................................................................................................................................................................. 27 Inter Packet Gap (IPG) .............................................................................................................................................. 27 Back-Off Algorithm..................................................................................................................................................... 27 Late Collision ............................................................................................................................................................. 27 Illegal Frames ............................................................................................................................................................ 27 Full Duplex Flow Control............................................................................................................................................ 27 Half-Duplex Backpressure ......................................................................................................................................... 27 Broadcast Storm Protection....................................................................................................................................... 28 Port Individual MAC address and Source Port Filtering ............................................................................................ 28 MII Interface Operation ..................................................................................................................................................... 28 MII Management (MIIM) Interface .................................................................................................................................... 29 Serial Management Interface (SMI).................................................................................................................................. 29 Advanced Switch Functions .............................................................................................................................................. 31 Bypass Mode .................................................................................................................................................................... 31 IEEE 802.1Q VLAN Support............................................................................................................................................. 31 QoS Priority Support......................................................................................................................................................... 32 Port-Based Priority..................................................................................................................................................... 32 802.1p-Based Priority ................................................................................................................................................ 32 DiffServ-Based Priority .............................................................................................................................................. 33 Spanning Tree Support..................................................................................................................................................... 33 Rapid Spanning Tree Support .......................................................................................................................................... 34 Tail Tagging Mode ............................................................................................................................................................ 34 IGMP Support ................................................................................................................................................................... 35 |
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