在本文中我們敘述了IEEE 802.15.4的媒體存取層(MAC sublayer)的設計流程，從所需要的區塊規劃、設計實作，到整體系統的封包格式的切割還有所需功能的，直到所有輸入和輸出所有的反應測試等，在本文都有鉅細靡遺的敘述。

　　首先我們會簡短介紹Zigbee的計畫和目標，與其他無線通訊的差異性，然後開始敘述IEEE 802.15.4 MAC sublayer的系統架構和特色，這包含內部所有訊框的介紹說明，在第三章的部份開始介紹MAC層的功能行為描述，其中包含MAC所必須的功能介紹，如Beacon產生時機、CSMA-CA演算法的敘述、如何維持一個Personal Area Network(PAN)的運作、裝置之間聯繫(association)問題的解決、同步議題、資訊傳輸的方式和GTS (Guaranteed Time Slot) 的維護與管理，而接下來的第四章開始介紹我們所使用實作方式和功能區塊的分割，包含接收端和傳送端的處理還有設計流程，最後附上我們的設計在合成(synthesis)之後的模擬結果。

　　我們嘗試要以完全硬體的方式企圖完成此MAC控制器，並要求以節省能源和最小面積為達成目標。我們可以將此模組作為最基本的模組，提供實驗室最基本的設計，在未來Zigbee的支援，都可以任意加入其他模組加以配合。

　In this thesis we describe the design procedures of IEEE 802.15.4 medium access control (MAC) sublayer controller. Detail descriptions about basic functional blocks design proposal, implementations, the entire system frame handling, functions implementations and the test bench outputs for the total I/O simulations are demonstrated.

　First of all, we introduce about the Zigbee project and its objectives. We then compare the Zigbee protocol and other wireless communication protocols. Secondly, we describe the system architecture and features of IEEE 802.15.4 MAC sublayer, including all frame formats. Then, we provide a brief description on the MAC functions, which includes beacon generation timings, CSMA/CA algorithm, starting and maintaining PANs (Personal Area Networks), the association issues, synchronization issues, frame transmission controls, and GTS allocation and management, respectively. Afterward, we present the architecture of the design and provide functional blocks of the entire system. The design and processing procedures of TX/RX unit are included. Finally, the post-synthesis simulations of our design entity are included as appendix.

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