中颖单片机基于公司自有的 4-bit CPU IP(CPU60)发展起来，芯片采用的是程
序内存和数据存储器在物理空间上完全独立的哈佛结构。程序内存和数据存储器
地址以及总线完全分开，可以使指令和数据有不同的数据宽度。(Chip based on the company's own 4-bit CPU IP (cpu60) developed chip is used in the Harvard architecture program memory and data memory in the physical space is completely independent. Program memory and data memory address bus and completely separate, can make the instructions and data in different data width.)