Invention Grant
- Patent Title: Data transfer device and data transfer method
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Application No.: US14763941Application Date: 2013-04-10
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Publication No.: US09886411B2Publication Date: 2018-02-06
- Inventor: Hidenori Sato , Toshio Nakajima
- Applicant: Mitsubishi Electric Corporation
- Applicant Address: JP Chiyoda-ku
- Assignee: Mitsubishi Electric Corporation
- Current Assignee: Mitsubishi Electric Corporation
- Current Assignee Address: JP Chiyoda-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- International Application: PCT/JP2013/060833 WO 20130410
- International Announcement: WO2014/167670 WO 20141016
- Main IPC: G06F13/42
- IPC: G06F13/42 ; G06F13/40 ; G06F13/28

Abstract:
A data transfer device performing data transfer at a high speed if a descriptor chain cannot be entirely transferred by a single activation. In a DMA control device, when a transfer activation signal is asserted, a descriptor information control part sequentially reads descriptor information from a descriptor information storage part. When the count of pieces of descriptor information that have been read becomes equal to a transferable frame count, a backward skip control part outputs a backward skip instruction. When the backward skip instruction is outputted, a descriptor information control part skips reading remaining descriptor information.
Public/Granted literature
- US20150363351A1 DATA TRANSFER DEVICE AND DATA TRANSFER METHOD Public/Granted day:2015-12-17
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