| 摘要 |
PURPOSE:To attain high-speed data input/output and retrieval with simple constitution without using address information by providing a data insertion means and an extraction means to a memory loop comprising connecting delay elements in a loop to input/output data via a buffer of an asynchronous delay line. CONSTITUTION:Plural asynchronous digital delay elements are connected to form a memory loop 1 and a data from an input buffer 21 of asynchronous delay line is inputted continuously to the loop 1 via a data insertion device 2 in response to a control signal 22 commanding data insertion. On the other hand, data such as comparison data 32, master data 33 and a comparison instruction are compared by a comparator 3, which retrieves the data, and the data through coincidence retrieval is extracted from the loop 1 and outputted via an output buffer 31 of the asynchronous delay line. Thus, data input/output and retrieval are attained at high speed without using address information, no decoder is required to simplify the constitution.
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