ARRANGEMENT AND METHOD OF CONTROLLING MEMORY ACCESS REQUESTS IN DIGITAL DATA PROCESSING SYSTEM

摘要

Before memory access request is applied to amemory, a request receive signal is generated andapplied to a controller. The controller retrievesinformation from a request information buffer having alimited memory space. The information is to be returnedto a unit which has issued the request and is stored in areply buffer. The transfer of the information into thereply buffer, induces the acceptance of a new requestbefore the completion of the actual access to the memory.