Patent ID: 6035381
Filing Date: 2000-03-07
Classification: G06F

Abstract:
A data memory unit for accessing data designated by an address, the data memory unit comprising:a main data storage portion for storing data, wherein the data is accessed by using all bits of a given address; anda reference data storage portion for storing reference data corresponding to data stored in the main data storage portion, wherein the reference data is accessed by using fewer than all bits of the given address;wherein the given address includes a row address and a column address inputted successively at different timings and the reference data is accessed by using only the row address; andthe data memory unit can easily be combined with a plurality of similar data memory units to form a memory block which is accessed in a manner similar to accessing of the data memory unit; andsaid memory block can be combined with a plurality of similar memory blocks to form a main memory which can be accessed in a manner similar to accessing of the memory block.