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:
Apr. 01, 1986
Filed:
Dec. 14, 1982
Tadashi Watanabe, Tokyo, JP;
Nippon Electric Co., Ltd., Tokyo, JP;
Abstract
In a memory arrangement responsive to a first address signal and comprising a buffer memory for storing a plurality of information groups, each comprising a preselected number of information blocks, and an address array for storing a plurality of second address signals each of which specifies each information block to produce the second address signals equal in number to the preselected number, the first address signal comprises a plurality of fields one of which is a specific field representative of either of first and second operation modes in which the arrangement is operable as cache and local memories, respectively. When the specific field indicates the first mode, the preselected number of the second address signals is compared by a set of comparators with the corresponding fields of the first address signal without masking to derive one of the information blocks of the information group specified by one of the fields. When the specific field indicates the second mode, the comparison is carried out with the first and the second address signals partially masked by a masking circuit.