Control device for controlling a connection between an arithmetic processor and a main memory unit

Abstract From the Canadian patent

A control device (21) controls a connection between a specific one of a plurality of arithmetic processors (12-1) and a specific one of a plurality of main memory units (13-1) in accordance with an access request supplied from the specific arithmetic processor. The access request has request tag information. A buffer section (56) buffers the request tag information in response to a write-in address. A supplying section (55) supplies the specific main memory unit with an additional access request having the write-in address as an identifier instead of the request tag information. When a main memory access ends, the specific memory unit supplies the control device with a reply signal having …