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《Journal of Harbin University of Science and Technology》 1991-01
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Fast Data Transmission Between CCD and Apple-Ⅱ

Zhang Jian Liu Be  
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.
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