Read-write control circuit, method and apparatus for two-port RAM
A read-write control and dual-port technology, applied in the field of memory, can solve the problems of adding control logic, function logic cannot read parameters, and increasing the burden of DSP
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[0084] The first embodiment of the read-write control method of the dual-port RAM of the present invention, as shown in Figure 8, includes:
[0085] 801. Decode the first port address bus signal to generate a set of first port storage unit selection signals; the set of first port storage unit selection signals is at a high level at the output end corresponding to the first port address bus signal, low on the remaining outputs;
[0086] 802. Perform an AND operation on the group of first port storage unit selection signals and first port write enable signals respectively;
[0087] 803. Reverse respectively a group of first-port storage unit selection signals after AND operation;
[0088] 804. Before at least 3 clock cycles, output a group of first port memory unit selection signals after AND operation as a group of memory unit read mask signals; after at least 3 clock cycles, output a group of first port after inversion The memory cell selection signal is output as a group of...
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