ARITHMETIC PROCESSING APPARATUS, INFORMATION PROCESSING APPARATUS, AND CONTROL METHOD OF ARITHMETIC PROCESSING APPARATUS

• Main Authors: HOSOE KOJI, AIHARA MASATOSHI, SUGA MAKOTO, TOKIYODA AKIO, TAKAYAMA KOICHIRO
• Format: Patent
• Language: English; Japanese
• Published: 22.12.2016
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; INFORMATION STORAGE; PHYSICS; STATIC STORES

PROBLEM TO BE SOLVED: To diagnose a memory more in detail at a higher speed than prior art, after an arithmetic processing apparatus and the memory are mounted on an apparatus.SOLUTION: An arithmetic processing apparatus includes: a first memory; a second memory; a first memory control unit for controlling an access to the first memory; a second memory control unit for controlling an access to the second memory; and a diagnosis control unit which sequentially diagnoses sections in the first memory via the first memory control unit, and sequentially stores diagnostic results sequentially diagnosed by the first memory control unit, via the second memory control unit, on the second memory, in parallel with diagnosis of the first memory control unit.SELECTED DRAWING: Figure 2 【課題】演算処理装置とメモリを装置に実装後に、従来よりも詳細かつ高速にメモリを診断する。【解決手段】演算処理装置は、第１のメモリと、第２のメモリと、第１のメモリへのアクセスを制御する第１のメモリ制御部と、第２のメモリへのアクセスを制御する第２のメモリ制御部と、第１のメモリ制御部を介して前記第１のメモリ内の部分を順次診断するとともに、第１のメモリ制御部による診断と並行して、第１のメモリ制御部が順次診断した診断結果を、第２のメモリ制御部を介して第２のメモリに順次格納する診断制御部とを有する。【選択図】図２