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:
May. 25, 2004
Filed:
Nov. 09, 2000
Applicant:
Inventors:
Takao Inoue, Ehime, JP;
Yasushi Imamura, Ehime, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/200 ; G06F 1/300 ;
U.S. Cl.
CPC ...
G06F 1/200 ; G06F 1/300 ;
Abstract
An access controller comprising plural access ports in which information associated with access from a CPU is stored for each access, and a bank management unit for managing use states of the plural access ports and informing the CPU of the use states. The CPU writes the information associated with the access on an unused one of the plural access ports on the basis of the use states provided by the bank management unit. Accordingly, the access controller which has a function of not accessing an erroneous address, suppresses the CPU processing load, and does not require a complicated description of firmware can be provided.