Data reading and writing method and device, dynamic random access memory
A dynamic random, data read and write technology, applied in the field of memory, can solve the problems of small memory read and write length, limited read and write speed, etc., to reduce data read and write time, improve read and write speed, and save costs.
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[0040] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments, however, can be embodied in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted.
[0041] like figure 1 As shown, most of the current SoCs use AXI interface as the interface for direct memory access (DMA, Direct Memory Access) to access dynamic random access memory (DRAM, Dynamic Random Access Memory), for example, GPU / VEDIE / DISPLAY accesses DRAM through AXI interface, The bit width (axi_size) of the data in the corresponding AXI command is usually 256 bits, and the length of the data is usually 8 or 16,...
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