adm6993 Infineon Technologies Corporation, adm6993 Datasheet - Page 8

• Manufacturer Part Number: adm6993
• Description: Adm6993/x Hdlc To Fast Ethernet Converter
• Manufacturer: Infineon Technologies Corporation

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Features and the block diagram.
1.1
The ADM6993/X is a single chip integrating two 10/100 Mbps MDIX TX/FX transceivers, a three-port 10/100M
Ethernet L2 switch controller, and features converter mode to meet demanding applications, including Fiber-to-
Ethernet media converters, 2/3 port Ethernet switches, VoIP gateways, and NAT routers. The ADM6993X is the
environmentally friendly “green” package version.
The ADM6993/X supports priority features on Port-Base priority, VLAN TAG priority and IP TOS precedence
checking at individual ports. This is done through a small low-cost micro controller to initialize or on-the-fly to
configure. The priority of packets can be tagged based on TCP port number for the multi-media application.
The 2
media. The 3
bridge devices for different media. The dedicated HDLC channel supports rate from 64Kbps to 50Mbps.
On the media side of port0/1, the ADM6993/X supports auto MDIX 10Base-T/100Base-TX and 100Base-FX as
specified by the IEEE 802.3 committee through uses of digital circuitry and high speed A/D.
ADM6993/X supports serial management interface (SMI) for a small low-cost micro controller to initialize or
configure. It also provides port status for remote agent monitor and smart counter for port statistics.
1.2
Main features:
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Data Sheet
3-port10/100M switch integrated with a 2-port PHY (10/100TX and 100FX) and 3
GPSI/MII/RMII/HDLC.
Provides TX<-->FX Converter modes with faulted propagation and redundant capability by using of two
ADM6993/X.
Short latency on the converter mode.
Built-in data buffer 6Kx64bit SRAM.
Up to 2k MAC Unicast addresses with a 4-way associative hashing table.
MAC address learning table with aging function.
Two queues per port for QoS purposes.
Port-base, 802.1p and TCP/IP ToS priority.
Store & forward architecture.
802.3x flow control for full duplex and back-pressure for half duplex in case the buffer is full.
Supports Auto-Negotiation.
Packet lengths up to 1536 bytes.
Broadcast storming filter.
Port-base VLAN/tag-base VLAN.
16 entries of packet classification and marking or filtering for TCP/UDP Port Numbering, IP Protocol ID and
Ethernet Type.
Serial Management Interface for low-end CPUs.
Provides port status for remote agent monitoring .
Provides smart counters for port statistics reporting.
128 PQFP packaging with 2.5 V/3.3 V power supply.
nd
MAC interface could be selected as TP/FX or MII/RMII/GPSI to connect with bridge devices for different
Product Overview
Overview
Features
rd
MAC interface could be selected as MII/RMII/GPSI/HDLC to connect with routing devices, and
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rd
MAC port as
Rev 1.11, 2005-11-28
Product Overview
ADM6993/X