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:
Feb. 20, 1996
Filed:
Jan. 11, 1995
Jonathan M Fitch, Cupertino, CA (US);
Apple Computer, Inc., Cupertino, CA (US);
Abstract
A memory architecture including a memory cache which uses a single level of write buffering in combination with page mode writes to attain zero wait state operation for most memory accesses by a microprocessor. By the use of such a memory architecture, the speed advantages of more expensive buffering schemes, such as FIFO buffering, are obtained using less complex designs. The memory architecture utilizes same page detection logic and latching circuitry and takes advantage of a feature built into industry standard dynamic RAMs, namely page mode writes, to perform writes to memory which allow the processor to be freed before the write is completed for the most frequently occurring type of write operations.