The ACD82124 is a single chip implementation of a 24
port 10/100 Ethernet switch system intended for IEEE
802.3 and 802.3u compatible networks. The device
includes 24 independent 10/100 MACs. Each MAC
interfaces with an external PMD/PHY device through a
standard MII interface. Speed can be automatically
configured through the MDIO port. Each port can operate
at either 10Mbps or 100Mbps. The core logic of
the ACD82124, implemented with patent pending
BASIQ (Bandwidth Assured Switching with Intelligent
Queuing) technology, can simultaneously process 24
asynchronous 10/100Mbps port traffic. The Queue
Manager inside the ACD82124 provides the capability
of routing traffic with the same order of sequence,
without any packet loss.
A complete 24 port 10/100 switch can be built with the
use of the ACD82124, 10/100 PHY and ASRAM. The
MAC addresses can be expanded from the built-in 2K
to 11K by the use of ACD’s external ARL chip
(ACD80800 Address Resolution Logic). Advanced network
management features can be supported with the
use of ACD’s MIB (ACD80900 Management Information
Base) chip