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. 18, 1993
Filed:
May. 09, 1988
Ajay J Padgaonkar, Phoenix, AZ (US);
Sumit K Mitra, Tempe, AZ (US);
Microchip Technology Incorporated, Chandler, AZ (US);
Abstract
The RAM includes sub-arrays having odd and even memory locations, respectively. A data move instruction results in externally generated row and column address signals which are decoded to cause a first memory location, in one of the sub-arrays, to be selected and data to be read. The next memory location in sequence, in the other of the sub-arrays, is then selected, without necessity for an additional set of row address signals, for writing of the read information. The row decoder includes row indexing circuitry actuatable upon receipt of a shift signal signifying that the first memory location is in the last column of a given row. When the shift signal is received, the write location is automatically selected to be in the succeeding row.