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.:

US 8037216 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 11, 2011

Filed:

Sep. 18, 2008
Applicant:

Takatsugu Sawai, Osaka, JP;

Inventor:

Takatsugu Sawai, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 13/28 (2006.01); G06F 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A DMA transfer control device includes a setting register group for setting transfer informations, a number-of-transfers register to which the number of transfers to be performed is set, and which updates a value thereof every time one DMA transfer is completed, a transfer control unit, a secondary setting register group for setting other transfer informations different from the transfer informations, and a specified ordinal-number-of-transfer register. Every time one DMA transfer is initiated, either a value of the setting register group or a value of the secondary setting register group is selected for each of the transfer informations in accordance with a result of an arithmetic operation between a value of the number-of-transfers register and a value of the specified ordinal-number-of-transfer register, and inputted to the transfer control unit. As a result, by making settings for one DMA transfer, it is possible to temporarily change the transfer informations.


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Sawai, Takatsugu. (2011). Dma transfer control device (U.S. Patent No. 8037216). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8037216

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