Data reading method and device of memory, and data writing method and device of memory

Abstract

Embodiments of the invention disclose a data reading method and device of a memory, and a data writing method and device of the memory, belonging to the technical field of integrated circuits. The data reading method and device and the data writing method and device can effectively improve data reading and writing efficiency on the premise of ensuring correct data reading and writing. The data reading method comprises the following steps: writing test data into preset storage unit rows of the memory based on a test write effective signal; respectively reading the data in the preset storage unit rows according to different data reading time sequences to obtain corresponding read-out data; determining a critical reading duration corresponding to a reading time sequence of the memory according to the change of the consistency of the reading data and test data; and performing read operation on the memory according to the critical reading duration. The methods and devices are suitable for integrated circuit design.

Description

technical field [0001] The invention relates to the technical field of integrated circuits, in particular to a data reading method and data writing method and device for a memory. Background technique [0002] In digital circuits, due to differences in the size and frequency of different electrical signals, as well as the transmission media and transmission paths of electrical signals, electrical signals will have different degrees of delay. In order to ensure that the circuit can realize the required logic function, it is often necessary to set aside a certain amount of redundant time when the circuit is designed and implemented. [0003] Taking the memory as an example, when the computer reads and writes the memory, if there is not enough time to read or write data, errors may occur in the written or read data. For this reason, redundant time will be reserved for data reading and data writing. However, although this can ensure the correctness of data reading and writing, ...

AI Technical Summary

Problems solved by technology

[0003] Taking the memory as an example, when the computer reads and writes the memory, if there is not enough time to read or write data, the written or read data is likely to be wrong.

For this reason, redundant time will be reserved for data reading and data writing. However, although this can ensure the correctness of data reading and writing, it greatly reduces the efficiency of reading and writing.

Images