Multi-port access memory for sharing read port and write port

摘要

1. Technical field to which the invention described in the claims belongs;Multi-port access memory sharing read and write ports.;2. Technical Challenges to be Solved by the Invention;To reduce the size, reduce the manufacturing cost, and improve the performance by sharing the read and write data paths and the read and write address decoders.;3. The point of the solution of the invention;A plurality of port access memory cells for storing data and an address for reading and writing data from the outside, respectively, under the control of a read enable signal or a write enable signal to decode the word lines A plurality of decoding means for selecting one of the plurality of memory cells and transferring externally input data to the multi-port access memory cell through a bidirectional data line under the control of an externally input write enable signal, And data selection means for receiving data via the bidirectional data line and outputting the data to the outside by controlling a read enable signal.;4. Important Uses of the Invention;Used in buffers in superscalar microprocessors.