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:
Oct. 27, 1998
Filed:
Dec. 21, 1995
Applicant:
Inventors:
Anthony J O'Toole, San Jose, CA (US);
Sriraman Chari, Fremont, CA (US);
Assignee:
Cirrus Logic, Inc., Fremont, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G06K / ;
U.S. Cl.
CPC ...
395842 ; 395872 ; 39520066 ;
Abstract
A method and apparatus of managing a multi-channel direct memory access (DMA) operation in which a sequence of data frames are received at a controller that controls a DMA transfer. The data frames are placed in data buffers in a memory by the controller. Multiple data frames are stored by the controller in at least one of the data buffers. The storing of multiple data frames in a single buffer provides efficient utilization of memory space as large size buffers are used to hold more than a single data frame, and also reduces the management overhead involved in placing the data frames in the data buffers.