介紹了MPC555與CS8900A擴展以太網的硬件設計圖。以NUCLUES PLUS操作系統為基礎，介紹了網卡軟件驅動程序的編制，給出了以太網協議包嵌入nucleus PLUS操作系統的實現方法。
Abstract:
The Ethernet extension hardware design of MPC555 and CS8900A are introduced,and the software driven program based on nucleus PLUS operation system and the technique that Ethernet protocol embedded in nucleus PLUS real operation system are discussed.
