VERFAHREN ZUM ZUGRIFF AUF EINEN ERWEITERTEN SPEICHER, VORRICHTUNG UND SYSTEM

摘要

A method for accessing an extended memory, a device, and a system are disclosed. The method includes: receiving N+1 memory access requests serially sent by a processor system in a computer, where access addresses in all the memory access requests are different from each other and point to a same physical address, the physical address is a storage address of to-be-accessed data in the extended memory, N≥1, and N is an integer; when a first memory access request is received, sending a read request to the extended memory, and returning a specific response message to a processor; in a process of reading the to-be-accessed data from the extended memory, each time a memory access request is received, returning a specific response message to the processor within a delay specified in a memory bus protocol until the to-be-accessed data is written into a data buffer; and then returning the to-be-accessed data to the processor system.