公开(公告)号：JP2002140892A

公开(公告)日：2002-05-17

申请号：JP2001257661

申请日：2001-08-28

Applicant: IBM

Inventor： ROBERT DEAN ADAMS ,  CONNER JOHN ,  COVINO JAMES J ,  FLAKER ROY C ,  KOCH GARRETT S ,  ROBERTS ALAN L ,  SOUSA JOSE R ,  TERNULLO JR LUIGI

IPC: G06F12/16 ,  G06F12/08 ,  G11C8/10 ,  G11C15/00 ,  G11C15/04 ,  G11C29/00 ,  G11C29/02 ,  G11C29/10 ,  G11C29/12 ,  G11C29/56

Abstract: PROBLEM TO BE SOLVED: To provide a memory system and a method in which a RAM is not required to stand by until a CAM processes a row address for a RAM. SOLUTION: This device is provided with a RAM including at least two data columns of first and second in which data is included, a gate circuit coupled to the first and the second columns and gating an output of the RAM data, and a CAM, the CAM is provided with at least two address columns including plural address positions in them, and a control circuit coupled to each address position of the first and the second address columns in the CAM and the gate circuit, sending a control signal to the gate means when a comparison address coincides with an address in the first or the second address column, and outputting RAM data from a data column address-specified by the gate means.