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DM9013

10/100 Mbps 3-port Ethernet Switch Controller with General Processor Interface

Davicom Semiconductor, Inc. 

DM9013

3-port switch with Processor Interface

1. General Description

The DM9013 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

controller provides basic Layer-2 switch functions and

advanced IEEE 802.1Q VLAN and priority queuing

scheme. The integrated two ports PHY are compliant

with IEEE 802.3u standards. The MII interface

provides the flexibility to connect Ethernet PHY or

SoC with MII/RMII interface. The DM9013 provides

direct interface to the general processor bus with 8-, 16-, or

32-bit data to access internal memory.

2. Block Diagram

Port 0

MDI / MDIX

Port 1

MDI / MDIX

Port 2

MII / RMII

Reverse MII

8 , 16 , 32 bit

Processor

Bus

10/100M

PHY

10/100M

PHY

Processor

Interface

10/100 M

MAC

10/100 M

MAC

10/100 M

MAC

Host

MAC

Switch Fabric

Switch Engine

Embedded

Memory

Memory

BIST

Switch

Controller

Memory

Management

LED

Control

Control

Registers

MIB

Counters

EEPROM

Interface

Bandwidth

LEDs

EEPROM

10

Preliminary datasheet

DM9013-15-DS-P03

April 9, 2009

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