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:
Jul. 06, 2010
Filed:
May. 26, 2006
Kensuke Ishida, Kawasaki, JP;
Masaaki Nagatsuka, Kawasaki, JP;
Hiroyuki Oka, Kawasaki, JP;
Takuji Takahashi, Kawasaki, JP;
Kensuke Ishida, Kawasaki, JP;
Masaaki Nagatsuka, Kawasaki, JP;
Hiroyuki Oka, Kawasaki, JP;
Takuji Takahashi, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
The DMA data transfer apparatus includes a memory, a communication controller, a DMA controller having a plurality of DMA engines each of which transfers data by DMA to the communication controller from the memory, and a DMA control unit. The DMA control unit determines a division size of transfer data such that the DMA engine can transfer the data, issues a data transfer directive by the DMA to the DMA controller, and controls data transfer by the DMA. The DMA control unit transmits the determination information for determination of the termination of data transfer to the communication controller. The communication controller determines the termination of data transfer based on the determination information transmitted from the DMA control unit.