Semiconductor circuit with address translation circuit that enables quick serial access in row or column directions
AssigneeOki Electric Industry Co., Ltd.
InventorAtsushi Takasugi
Life of this patent
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AssigneeOki Electric Industry Co., Ltd.
InventorAtsushi Takasugi
Estimating the term…
In a semiconductor memory, memory banks each having memory cells are arranged in X and Y directions. Each of the memory banks include a Y decoder for selecting Y-direction addresses of the memory cells and an X decoder for selecting X-direction addresses of the memory cells, predicated on a memory having memory banks operable independent from one another. Items of data specified by a specified number of continuous X addresses and having the same Y addresses are successively written into or read from the memory cells arranged in the X direction, which are specified by X addresses corresponding to 1+knth (where k=0, 1, 2 . . . ) in one of the banks. After all the data have been written into or read from the specified memory cells, the corresponding data are successively written into or read from the memory cells specified by X addresses corresponding to 2+knth in another one of the banks.
A semiconductor memory device comprising:
A method of accessing matrix data in a semiconductor memory device, the semiconductor memory device including a single synchronous dynamic random access memory having first and second memory banks, the matrix data including a plurality of serial line data, each of the banks having a plurality of X lines including a plurality of memory cells, the method comprising:
A method of accessing matrix data stored in a semiconductor memory device, the semiconductor memory device including a single synchronous dynamic random access memory having first and second memory banks each having a plurality of X lines including a plurality of memory cells, the matrix data including a plurality of serial line data divided into continuous data sets each having a predetermined number of continuous data representing plural pixels, the continuous data sets are located to a first area including (2n−1)th lines of the first bank and 2nth X lines of the second bank, and a second area including (2n−1)th X lines of the second bank and 2nth X lines of the first bank in turn, where n is a natural number, the method comprising:
Dependencies are inferred from the claim text.