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.

Date of Patent:
Sep. 16, 2003

Filed:

Jun. 26, 2000
Applicant:
Inventors:

David A. Comisky, Plano, TX (US);

Sanjive Agarwala, Richardson, TX (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/328 ; G06F 1/300 ;
U.S. Cl.
CPC ...
G06F 1/328 ; G06F 1/300 ;
Abstract

A direct memory access function for servicing real-time events, ensures that any parameter reloads occur during times when the direct memory access channel is idle and guarantees completion before the channel begins active operation again. The direct memory access channel whose parameters are to be updated is disabled during the update cycle. This ensures that no requests are processed until the new parameters have been written to the direct memory access channel parameters. A second direct memory access channel may be used to reload the data transfer parameters permitting a self-modifying direct memory access function.


Find Patent Forward Citations

Loading…