US Patent 7216185 Buffering apparatus and buffering method

Buffer control means and output control means are included within a buffering apparatus. Data longer than the width of data bus is read by single access from buffer means. Rather than signal line control for each bus width, signal line control for each data group is performed by a method wherein address administration means holds address information in relationship with each group of a series of data written in the buffer means and data is output from the buffer means.