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. 19, 1997
Filed:
Jun. 02, 1995
Brian T Kelley, Boynton Beach, FL (US);
Tan Nhat Dao, Austin, TX (US);
Duncan Fisher, Mission Viejo, CA (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A method and apparatus for an improving memory access bandwidth that can be used in a digital signal processor (DSP) (500) is accomplished by modifying addresses (302, 304) generated by an address generation unit (AGU) (102) of the DSP (500). Two addresses (302, 304) are generated by the AGU (102). One of the two addresses (302) is used to address two parallel memory blocks (308, 310) in a single memory simultaneously, and the other address (304) is modified by a modulo increment function to produce two additional addresses (404, 406) that also address the parallel memory blocks (308, 310). With such a method and apparatus, four simultaneous memory reads can occur, effectively doubling the memory access bandwidth in the DSP system (500) without modification of the AGU (102) or program controller (510).