摘要
本文提出一种不同于 DMA 的高速数据传输方法,从而克服了 Apple-Ⅱ机因受动态存储器刷新限制而不能直接应用 DMA 技术的困难.为实现用 Apple-Ⅱ机处理电荷耦合器件 CCD 的信号,提供了一个新途径.
In this paper,we proposed a new method for fast data transmission which is different from DMA,so the problem that DMA technique can not be used in Apple-Ⅱ caused by dynamic memory refresh was solved,thus providing a new way for Apple-Ⅱ to accept CCD and other kinds of fast transmission singnals.
