The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 09, 2022
Filed:
Apr. 06, 2021
Fujitsu Limited, Kawasaki, JP;
Hiroyuki Ishii, Kawasaki, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A semiconductor device includes a core which includes a first cache and a second cache; and a third cache configured to connect to the core, wherein the core is configured to: hold a read instruction that is issued from the first cache to the second cache, hold a write-back instruction that is issued from the first cache to the second cache, process the read instruction and the write-back instruction, determine whether a target address of the read instruction is held by the first cache by using a cache tag that indicates a state of the first cache, and when data of the target address is held by the first cache, abort the read instruction until it is determined that data of the target address is not held by the first cache.