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DM9016 参数 Datasheet PDF下载

DM9016图片预览
型号: DM9016
PDF下载: 下载PDF文件 查看货源
内容描述: 10/100 Mbps的3端口以太网交换机控制器与通用处理器接口 [10/100 Mbps 3-port Ethernet Switch Controller with General Processor Interface]
分类和应用: 控制器以太网局域网(LAN)标准
文件页数/大小: 85 页 / 508 K
品牌: DAVICOM [ DAVICOM SEMICONDUCTOR, INC. ]
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DM9016  
3-port switch with Processor Interface  
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.  
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.  
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  
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  
Switch Engine  
Memory  
Port 0  
10/100M  
PHY  
10/100M  
MAC  
Switch Fabric  
Embedded  
BIST  
MDI / MDIX  
Memory  
Port 1  
10/100M  
PHY  
10/100M  
MAC  
MDI / MDIX  
Switch  
Memory  
Controller  
Management  
Port 2  
10/100M  
MAC  
MII / RMII  
Bandwidth  
LEDs  
Reverse MII  
LED  
Control  
8
,16, 32 bit  
Processor  
Bus  
Processor  
Interface  
Host  
MAC  
Control  
MIB  
EEPROM  
Interface  
EEPROM  
Registers  
Counters  
Preliminarydatasheet  
DM9016-13-DS-P01  
March 26, 2009  
11