4-port Layer 2
Unmanaged
Switched Ethernet
Controller
AT79C1010
Summary
3433AS–NETST–2/04
Features
• 4 10/100M Ethernet MII Ports Meet Fast Ethernet Requirements
Provides Packets Switching Function Between 4 Ethernet Ports
Crossbar Switching Engine Performs Switching at Wire Speed
Full/Half Duplex Mode Interface Supported
Flow Control for Full-duplex Supported
MAC Address Table is Integrated in the Single-chip
MAC Address Aging is Supported
Input/Output Buffer Memory Embedded for Each Port
MDIO Interface is Supported
Available in a Variety of Packages Depending on Customer Requirements
Description
The AT79C1010 is an Ethernet switch controller that performs Layer 2 Switching
according to IEEE 802 standards. It adopts the crossbar architecture to complete the
function of packets switching between 4 MII ports. The mechanism of this switch is
“learning & forwarding”, and the embedded MAC address table ensures the imple-
mentation of this function. It can attain wire speed when it's used as a fast Ethernet
switch.
Note: This is a summary document. A complete document
is available under NDA. For more information, please con-
tact your local Atmel sales office.