一种高效嵌入式微处理器控制器设计  

Design of a High-efficiency Controller for an Embedded Microprocessor

作　　者：彭和平[1] 高德远[1] 赵元富[2] 陈雷[1] 

机构地区：[1]西北工业大学航空微电子中心,陕西西安710072 [2]航天时代电子公司北京微电子技术研究所,北京100068

出　　处：《微电子学与计算机》2006年第4期1-3,共3页Microelectronics & Computer

基　　金：国防预研项目(41308010307)

摘　　要：文章介绍了与ARM7TDMI指令集兼容的嵌入式微处理器NPUARM7控制器设计,提出了按指令分类的状态机结构,以及由状态机控制下的分步译码的控制信号产生机制。该设计简化了译码控制逻辑,提高了译码效率,消除了流水线复杂译码逻辑容易产生的瓶颈问题,适应高速度、低功耗嵌入式应用要求。The paper introduced the controller design of a embedded microprocessor, NPUARM7, which is compatible with ARM7TDMI instructions set. It presented a novel Finited State Machine （FSM） mechanism which was decided by the different sort of instruction. A decoding method step by step controlled by FSM was desefihod. The method simplified the decoding logic circuits, improved the decoding efficiency, and eliminated the bottle-neck in the RISC pipeline. Test shows that this scheme is much suitable for high-speed, low-power and embedded application.

关 键 词：ARM7TDMI 徽处理器 有限状态机 译码器 流水线 

分 类 号：TP322[自动化与计算机技术—计算机系统结构]