本文描述了用6502微处理机和16K 存储器组成的数字图象显示系统,每幅画面由256×256象元组成,每个象元灰度为2bit。图象数据由微处理机控制写入图象存储器,图象存储器写入或读出状态用程序控制。从图象存储器读出的图象数据与同步发生器产生的复合同步信号组成全电视信号,送到显示器而显示图象。 This article describes a digital image display system consisting of a 6502 microprocessor and a 16K memory. Each frame consists of 256 × 256 pixels, each of which has a gray scale of 2 bits. The image data is written into the image memory under the control of a microprocessor, and the image memory is written or read out by program control. The image data read out from the image memory and the composite synchronizing signal generated by the synchronizing generator make up an all-television signal, which is sent to the display to display the image.