ADC82124

www.DataSheet4U.com Data Sheet: ACD82124 24 Ports 10/100 Fast Ethernet Switch Controller Rev.1.1.1.F Last Update: November 5, 1998 Subject to Change Please check ACD’s website for update information before starting a design Web site: http://www.acdcorp.com or Contact ACD at: Email: [email protected] Tel: 408-433-9898x115 Fax: 408-545-0930 ACD Confidential Material For ACD authorized customer use only. No reproduction or redistribution without ACD’s prior permission. 1 DataSheet 4 U .com ACD Confidential. Do Not Reproduce. Use under Non-Disclosure Agreement only. INTRODUCTORY Data Sheet: ACD82124 Advanced Communication Devices www.DataSheet4U.com Table of Contents 1 2 3 4 5 6 7 8 9 10 11 General Description Main Features System Block Diagram System Description Functional Description Interface Description Register Description Pin Description Timing Description Electrical Specifications Packaging Appendix Address Resolution Logic (The built-in ARL) 3 3 3 4 4 10 16 27 32 38 39 A1 40 ACD Confidential. Do Not Reproduce. Use under Non-Disclosure Agreement only. 2 DataSheet 4 U .com INTRODUCTORY Section Page Data Sheet: ACD82124 www.DataSheet4U.com 1. GENERAL DESCRIPTION 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 a...