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PDF DM9016 Data sheet ( Hoja de datos )
| Número de pieza | DM9016 | |
| Descripción | 10/100 Mbps 3-port Ethernet Switch Controller | |
| Fabricantes | DAVICOM | |
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DAVICOM Semiconductor, Inc.
DM9016
10/100 Mbps 3-port Ethernet Switch Controller
with General Processor Interface
DATA SHEET
Preliminary
Version: DM9016--DS-P01
March 26, 2009
1 page  
DM9016
3-port switch with Processor Interface
6.42 STP Control Register (56H) ........................................................................................................................ 30
6.43 DSP PHY Control Register (58H~59H)....................................................................................................... 30
6.44 Per Port Control/Status Index Register (60H)........................................................................................... 31
6.45 Per Port Control Data Register (61H) ........................................................................................................ 31
6.46 Per Port Status Data Register (62H) .......................................................................................................... 32
6.47 Per Port Forward Control Register (65H) .................................................................................................. 32
6.48 Per Port Ingress/Egress Control Register (66H) ...................................................................................... 33
6.49 Bandwidth Control Setting Register (67H)................................................................................................ 34
6.50 Per Port Block Unicast ports Control Register (68H) .............................................................................. 34
6.51 Per Port Block Multicast ports Control Register (69H)............................................................................ 34
6.52 Per Port Block Broadcast ports Control Register (6AH) ......................................................................... 34
6.53 Per Port Block Unknown ports Control Register (6BH) .......................................................................... 35
6.54 Per Port Security & STP Register (6CH).................................................................................................... 35
6.55 Per Port Priority Queue Control Register (6DH)....................................................................................... 35
6.56 Per Port VLAN Tag Low Byte Register (6EH) ........................................................................................... 36
6.57 Per Port VLAN Tag High Byte Register (6FH)........................................................................................... 36
6.58 Ethernet Address Control / Status Register 1 (70H) ................................................................................ 36
6.59 Ethernet Address Data Register (71H~76H) ............................................................................................. 36
6.60 Ethernet Address Control / Status Register 2 (77H) ................................................................................ 37
6.61 Snooping Control Register 1 (78H)............................................................................................................ 37
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
5
5 Page 
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.
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
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
Preliminary datasheet
DM9016-13-DS-P01
March 26, 2009
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet DM9016.PDF ] | |
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