REALTEK RTL8304MB-VB-CG

Single-chip 4-port 10/100M Ethernet switch controller. This document provides detailed programming information for software engineers. Core features include switch core functions (flow control, address lookup/learning and aging, half-duplex operation, inter-frame gap, illegal frame handling, etc.), PHY functions (auto-negotiation, 10Base-T and 100Base-TX transceiver functions, link monitoring, power-down mode, crossover detection and auto-correction, polarity detection and correction, etc.), and general functions (power-on sequence, setup and configuration, serial EEPROM example, SMI, RMII port, head-of-line blocking, filtering/forwarding reserved control frames, loop detection, etc.). Advanced features include ACL, MAC limiting, port isolation, VLAN, IEEE 802.1P tagging, QoS, lookup table, MIBs, storm filtering, and more.