Cache memory system

摘要

A cache memory system (1) having a small-capacity and high-speed access cache memory (6) provided between a processor (CPUi) and a main memory (CSM), including a software cache controller (8) for performing software control for controlling data transfer to the cache memory (6) in accordance with a preliminarily programmed software and a hardware cache controller (9) for performing hardware control for controlling data transfer to the cache memory (6) by using a predetermined hardware such that the processor (CPUi) causes the software cache controller (8) to perform the software control but causes the hardware cache controller (9) to perform the hardware control when it becomes impossible to perform the software control. <IMAGE>