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一、引言在大型计算机及巨型计算机系统中,随着运算速度的日趋提高,对主存贮器的要求越来越高,不但要求容量大,而且要求速度快。785计算机主存容量达200万字,数据传送速率达40M 字/秒。为了达到上述目的,主存系统通常采用多存贮体、多模重迭操作、多总线访问、多字读出等技术。一般说来,多存贮体只能扩充存贮器的容量,只有在存贮体的基础上配上控制电路形成独立的存贮器(即存贮模块)时.才有可能采用多模
I. INTRODUCTION In the field of large-scale computers and giant computer systems, as the computing speed increases day by day, the requirements on the main memory are getting higher and higher, which not only requires large capacity but also requires fast speed. 785 computer main memory capacity of 200 words, data transfer rate of 40M words / second. In order to achieve the above purpose, the main memory system usually adopts multiple memory banks, multi-mode overlap operation, multi-bus access, multi-word readout and other technologies. In general, multiple memory banks can only expand the capacity of the memory. Only when the control circuit is formed on a memory bank to form a separate memory (ie, memory module) can multi-mode