The RTL8650B/RTL8651B integrates the following key components and technologies:
- 6-port layer 2/3/4 switch MAC, 5 Fast Ethernet transceivers, and an MII interface
- Hardware Access Control List (ACL) for firewall applications
- A 32-bit RISC CPU with a 4K I-Cache, a 4K D-Cache, an 8K I-MEM, and a 4K D-MEM
- A powerful protocol engine to support auto L3/L4 checksum check and re-generation, auto VLAN tagging, and auto PPPoE encapsulation
- Rich set of peripherals for value-added services: two UART ports, a USB 1.1 host controller, a PCM interface, and 22 GPIOs
