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目前的数控彩显均采用了和彩电相似的单片机控制电路(不少还采用了I~2C总线控制技术),以便对彩显的亮度、对比度、行幅、场幅、行中心、场中心和几何失真等参数进行控制。其基本原理是:各种模拟数据都存入了电可擦只读存储器(E~2PROM)中,CPU通过串行时钟(SCL)线和串行数据(SDA)线与存储器通讯。当用户通过面板按键调整某项参数数据时,经CPU识别后从存储器中取出相关数据,再通过外接积分电路
The current digital color display are used with the color TV similar single-chip control circuit (a lot of also used I ~ 2C bus control technology), in order to color brightness, contrast, line width, field width, line center, field center and Geometric distortion and other parameters to control. The basic principle is: a variety of analog data are stored in electrically erasable read-only memory (E ~ 2PROM), the CPU through the serial clock (SCL) and serial data (SDA) lines and memory communications. When the user through the panel keys to adjust a parameter data, identified by the CPU removed from the memory of the relevant data, and then through the external integration circuit