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DM9016 Folha de dados(PDF) 11 Page - Davicom Semiconductor, Inc. |
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DM9016 Folha de dados(HTML) 11 Page - Davicom Semiconductor, Inc. |
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11 / 85 page  DM9016 3-port switch with Processor Interface Preliminary datasheet 11 DM9016-13-DS-P01 March 26, 2009 1. General Description The DM9016 is a fully integrated and cost-effective fast Ethernet switch controller with two ports 10M/100M PHY, one port MII or RMII or Reverse MII interface, and general processor bus interface. The integrated two ports PHY are compliant with IEEE 802.3u standards and support HP Auto-MDIX capabilities for twisted-pair cable transmit/receive direction automatic switching. The MII interface provides the flexibility to connect Ethernet PHY or SoC with MII/RMII interface. The general processor bus can be configured as 8-, 16-, or 32-bit data width. The DM9016 is a managed Switch, not only provides basic Layer-2 switch functions but offers advanced features that include 802.1Q VLAN, priority queuing management, bandwidth rate control, monitoring port traffic, multicast packet filtering, port security and hardware-based IGMP V1/V2 Snooping, etc. The general processor bus can be configured as 8-, 16-, or 32-bit data width and interfaces to most embedded CPU. The DM9016 provides TCP/UDP/IPv4 checksum offload function to alleviate host CPU load for improved system performance. The adjustable transmit/receive buffer of processor port can facilitate CPU in processing applications such as Video and Voice streaming. For power management feature, the DM9016 support wake on LAN function via link status change or magic packet detection. Additionally, the MIB counters, loop-back capability and the memory Build-in Self Test (BIST) are useful for system and board level diagnostic. 2. Block Diagram 10/100M PHY 10/100M MAC 10/100M PHY 10/100M MAC 10/100M MAC Port 0 MDI / MDIX Port 1 MDI / MDIX Port 2 MII / RMII Switch Controller Control Registers MIB Counters EEPROM Interface Embedded Memory Memory BIST Memory Management Processor Interface Host MAC Switch Engine 8 , 16 , 32 bit Processor Bus LED Control Bandwidth LEDs EEPROM Switch Fabric Reverse MII |
Nº de peça semelhante - DM9016 |
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Descrição semelhante - DM9016 |
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