一、通用化专用微机概述作为专用微机,要求系统的成本低功能强。为便于开发其它应用项目,还应兼顾通用化特点,在ECG12-Ⅰ型十二道心电自动诊断机的设计中,需要设计一专用的微机,我们采用了一种基于八位数据线的专用微机结构,选取价廉而功 First, the generalization of special microcomputer Overview As a special microcomputer, the system requires low-cost features. In order to facilitate the development of other applications, but also take into account the characteristics of universal, ECG12-Ⅰ type 12 ECG automatic diagnosis machine design, the need to design a dedicated microcomputer, we use a dedicated 8-bit data line Computer structure, choose cheap and power