adm6996f Infineon Technologies Corporation, adm6996f Datasheet - Page 7

• Manufacturer Part Number: adm6996f
• Description: 6 Port 10/100 Mb/s Single Chip Ethernet Switch Controller
• Manufacturer: Infineon Technologies Corporation

ADM6996F
Infineon-ADMtek Co Ltd
Chapter 1 Product Overview
1.1
Overview
The ADM6996F is a high performance, low cost, highly integrated (Controller, PHY and
Memory) four-port 10/100 Mbps TX/FX plus two 10/100 MAC port Ethernet switch
controller with all ports supporting 10/100 Mbps Full/Half duplex. The ADM6996F is
intended for applications to stand alone bridge for low cost SOHO markets such as 5Port,
Router applications. The 2
integrated.
ADM6996F provides the most advance functions such as: 802.1p(Q.O.S.),
802.1q(VLAN), Port MAC address Locking, Management, Port Status, TP Auto-
MDIX, 25M Crystal & Extra MII port functions to meet customer requests on Switch
demand.
The ADM6996F also supports Back Pressure in Half-Duplex mode and 802.3x Flow
Control Pause packet in Full-Duplex mode to prevent packet loss when buffers are full.
When Back Pressure is enabled, and there is no receive buffer available for the incoming
packet, the ADM6996F will issue a JAM pattern on the receiving port in Half Duplex
mode and transmit the 802.3x Pause packet back to receiving end in Full Duplex mode.
The built-in SRAM used for the packet buffer and address learning table is divided into
256 bytes/block to achieve the optimized memory utilization through complicated link
list on packets with various lengths.
ADM6996F also supports priority features by Port-Base, VLAN and IP TOS field
checking. Users can easily set different priority modes in individual ports, through a
small low-cost micro controller to initialize or on-the-fly to configure. Each output port
supports four queues in the way of fixed N: 1 fairness queuing to fit the bandwidth
demand on various types of packet such as Voice, Video and data. 802.1Q, Tag/Untag,
and up to 16 groups of VLAN are also supported.
An intelligent address recognition algorithm allows ADM6996F to recognize up to 2048
different MAC addresses and enables filtering and forwarding at full wire speed.
Port MAC address Locking function is also supported by ADM6996F to use on Building
Internet access to prevent multiple users sharing one port traffic.
nd
MAC can be configured as PCS type MII with 10/100 PHY
Product Review
1-1