The Research Of 8 BIT RISC MCU Core

Since Intel Company had produced the first Micro-control Unit(MCU) in 1976, More and more International companies pay attention to the market of MCU, Such as MOTOROLA,PHILIPS,ATMEL,MICROCHIP,HOLTEK,SAMSUNG AND HITACHI. Following the improvement of technology Of IC, The quality of MCU become better and better. But in mainland china, there is no one company produce such kind of product, so the ICCSZ give fund to CMS to research a 8bit RISC MCU Core.This article has shown the structure of 8bit MCU core, and we choice Harvard structure as base of our 8bit RISC MCU Core.The main parts of MCU include ALU,ROM,RAM,Timer,Special Register,Instruction Decoder,Clock Module,I/O control Module. Another part of this issue is the simulation of MCU Core. In this section has shown the Verilog Simulation of schematic of MCU Core.At the end of this article has pointed out the following research direction of MCU...