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:
Nov. 09, 2004

Filed:

Aug. 17, 2001
Applicant:
Inventors:

Steven R. Jahnke, Tokyo, JP;

Hiromichi Hamakawa, Ibaraki, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/322 ;
U.S. Cl.
CPC ...
G06F 1/322 ;
Abstract

A micro-controller direct memory access (DMA) unit includes hardware support for single read of the source address at a source word size and but writes to the target address at an independent target word size. This permits, for example, a single read of the source address at a larger word size and multiple sub-word sized writes to the target address. This is enabled by independent control register storage of a source word size, a source increment size, a target word size and a target increment size. A byte shifter/register that will shifts a full byte at a time to the next lower byte position allowing transfer of a large word to a destination having a small word size.


Find Patent Forward Citations

Jahnke, Steven. (2004). Micro-controller direct memory access (dma) operation with adjustable word size transfers and address alignment/incrementing (U.S. Patent No. 6816921). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6816921

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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