本文介紹了一個低成本大的8 位嵌入式微控制器內(nèi)核設(shè)計，設(shè)計采用哈佛結(jié)構(gòu)，雙數(shù)據(jù)總線，指令系統(tǒng)兼容CYASM 指令集。本文針對減小面積以實現(xiàn)低成本的目的，詳細介紹了系統(tǒng)結(jié)構(gòu)及各模塊的設(shè)計思想和改進方法。
關(guān)鍵詞: 微控制器；算術(shù)邏輯單元；低成本；復雜指令集；
Design of an 8-bit Low-Cost Embedded MCU core Wei Wei1, Jiang An-ping1, Lu Tie-jun2 ，Zong Yu2 (1. School of EECS，Peking University, Beijing100817, China; 2. Beijing Microelectronics Technology Institute, Beijing100076, China) Abstract： A design of 8-bit low cost embedded MCU is presented in this paper. The core the Harvard structure, two data bus, which is compatible with CYASM instruction. Aim at reducing area to achieving the aim of low cost; the design idea and improved method of the MCU structure and its specific units are introduced in detail.
Key words： MCU；ALU ；Low-cost；CISC；