PROCESSING SYSTEM HAVING MULTIPLE LEVEL CACHE MEMORY AND METHOD FOR OPERATING THE SAME

摘要

PURPOSE: A processing system having a multiple level cache memory and a method for operating the same is provided to enhance an operation speed by using a first cache and a second cache built in a CPU. CONSTITUTION: A processing system having a multiple level cache memory comprises a CPU core(53), a first cache(55), a second cache(57), a CPU(51) and a main memory(65). The CPU core performs each operation and command. The first cache stores a frequently used data. The second cache stores a data not stored in the first cache. The CPU and the CPU core stores simultaneously a newly generated data to the first and the second cashes. The main memory interfaces the first and the second cashes and stores all data of the CPU core.