DATA PROCESSING APPARATUS AND CONTROL METHOD

摘要

A connected access request is generated by connecting access requests that are issued within a period of carrying out connections from when a initially received leading access request is issued. At this time the period of carrying out connections is set so that access to data corresponding to the connected access request is completed within a time from when the leading access request is issued until other access to a memory device is performed.

主权项

1. A data processing apparatus comprising:
a processing unit configured to output a first access request for writing data to a memory device via a first bus having a first data width; a connection unit configured to generate a single second access request by connecting a plurality of first access requests outputted from the processing unit via the first bus, and outputs the second access request; a controller configured to set a period for the connection unit to execute a connection process for generating the single second access request, and controls the connection unit so that the plurality of first access requests outputted in one said period are connected; and a memory control unit configured to control access to the memory device via a second bus having a second data width greater than the first data width, wherein the memory control unit receives the second access request outputted from the connection unit and outputs the second access request to the memory device via the second bus.