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DM9006 Datasheet(PDF) 10 Page - Davicom Semiconductor, Inc.

Part No. DM9006
Description  10/100 Mbps 2-port Ethernet Switch Controller with General Processor Interface
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Maker  DAVICOM [Davicom Semiconductor, Inc.]
Homepage  http://www.davicom.com.tw
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DM9006 Datasheet(HTML) 10 Page - Davicom Semiconductor, Inc.

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DM9006
2-port Switch with Processor Interface
10
Preliminary datasheet
DM9006-13-DS-P01
September 1, 2009
1. GENERAL DESCRIPTION
The DM9006 is a fully integrated and cost-effective
fast Ethernet switch controller with two ports
10M/100M
PHY,
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
general processor bus can be configured as 8-bit or
16-bit data width.
The DM9006 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
DM9006
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 DM9006 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
10/100 M
PHY
10/100 M
MAC
10/100 M
PHY
10/100 M
MAC
Port 0
MDI / MDIX
Port 1
MDI / MDIX
Switch
Controller
Control
Registers
MIB
Counters
EEPROM
Interface
Embedded
Memory
Memory
BIST
Memory
Management
Processor
Interface
Host
MAC
Switch Engine
8 / 16 bit
Processor
Bus
EEPROM
Switch Fabric


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