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. 22, 2012
Filed:
Jan. 27, 2011
Philippe Malleth, Saint Remy l'hornore, FR;
Sebastien Tomas, Saint-Laurent-du-Var, FR;
Mario Giani, Le Cannet, FR;
Francois Badaud, Mouans Sartoux, FR;
Philippe Malleth, Saint Remy l'hornore, FR;
Sebastien Tomas, Saint-Laurent-du-Var, FR;
Mario Giani, Le Cannet, FR;
Francois Badaud, Mouans Sartoux, FR;
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A system and method for transmitting asynchronous data bursts over a constant data rate channel that transmits a continuous stream of data with virtually no load on the CPU(s) of the receiving processing node is disclosed. The data channel has a defined frame structure with one or more data structures, wherein each data structure comprises a plurality of data locations. A receiver selects data from a fixed data location in each data structure as a data descriptor for each respective data structure. The receiver configures a direct memory access (DMA) function using each data descriptor. For each data structure, a block of payload data is transferred from the data channel to a memory buffer using the DMA function when the data descriptor associated with the data structure is an eligible data descriptor that indicates the block of payload data is present, otherwise a dummy DMA transfer is performed when the data descriptor is an ineligible data descriptor that indicates no payload data is present in the associated data structure.