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

摘要

Before memory access request is applied to a memory, a request receive signal is generated and applied to a controller. The controller retrieves information from a request information buffer having a limited memory space. The information is to be returned to a unit which has issued the request and is stored in a reply buffer. The transfer of the information into the reply buffer, induces the acceptance of a new request before the completion of the actual access to the memory.