本文依據(jù)集成電路設(shè)計方法學，探討了一種基于標準Intel 8086 微處理器的單芯片
計算機平臺的架構(gòu)。研究了其與SDRAM，8255 并行接口等外圍IP 的集成，并在對AMBA
協(xié)議和8086 CPU分析的基礎(chǔ)上，采用遵從AMBA傳輸協(xié)議的系統(tǒng)總線代替?zhèn)鹘y(tǒng)的8086 CPU三總線結(jié)構(gòu)，搭建了基于8086 IP 軟核的單芯片計算機系統(tǒng)，并實現(xiàn)了FPGA 功能演示。
關(guān)鍵詞：微處理器； SoC；單芯片計算機；AMBA 協(xié)議

Design of 8086 CPU Based Computer-on-a-chip System
（School of Electrical Engineering and Automation, Heifei University of Technology, Hefei, 230009,China）Abstract: According to the IC design methodology, this paper discusses the design of one kind of Computer-on-a-chip system architecture, which is based on the standard Intel8086 microprocessor,investigates how to integrate the 8086 CPU and peripheral IP such as, SDRAM controller, 8255 PPI etc. Based on the analysis of the standard Intel8086 microprocessor and AMBA Specification,the Computer-on-a-chip system based on 8086 CPU which uses AMBA bus instead of traditional three-bus structure of 8086 CPU is constructed, and the FPGA hardware emulation is fulfilled.
Key words: Microprocessor; SoC; Computer-on-a-chip; AMBA Specification