MEMORY DEVICE USING MULTI-DIMENSIONAL DATA PREFETCH CACHE, AND CONTROL METHOD FOR THE SAME

摘要

A memory device using a multi-dimensional data pre-fetch cache and a control method thereof are provided to improve efficiency of accessing a memory of a hardware device for fast multimedia data processing and increase a cache hit rate by applying spatial locality when a line to be replaced is selected in a cache line replacing operation. A data cache(440) pre-fetches/stores 1D(Dimensional) data from the memory(460) and provides the stored data to an external device for processing the data through a system bus(410) according to a data request. The multi-dimensional pre-fetch cache(430) pre-fetches/stores the multi-dimensional data from the memory and provides the stored data to the external device through the system bus. A memory access discriminator(420) selects and provides the cache to be accessed according to the data request between the data cache and the multi-dimensional data pre-fetch cache by comparing an input address of the data request with predetermined memory area information in response to the data request. A memory controller(450) connects the selected cache to the memory.