System and method for updating the data stored in a cache memory attached to an input/output system

摘要

A cache memory system connected between an input/output system having an input/output processor and a computer system having a system bus and a main memory with an input/output portion is provided in which data requested by the input/output processor is retrieved from the input/output portion of the main memory, a memory stores the requested data, and the data in the memory is updated either when the processor is not requesting data or when the processor is requesting data already in the memory. A method for replacing memory pages within a cache memory system is also provided.