Invention Grant
- Patent Title: Information processing apparatus and information processing method
- Patent Title (中): 信息处理装置和信息处理方法
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Application No.: US11911458Application Date: 2006-04-06
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Publication No.: US08412864B2Publication Date: 2013-04-02
- Inventor: Hiroshi Kyusojin , Hideki Matsumoto
- Applicant: Hiroshi Kyusojin , Hideki Matsumoto
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: Finnegan Henderson Farabow Garrett & Dunner, L.L.P.
- Priority: JP2005-115371 20050413
- International Application: PCT/JP2006/307335 WO 20060406
- International Announcement: WO2006/112270 WO 20061026
- Main IPC: G06F13/28
- IPC: G06F13/28

Abstract:
The present invention relates to an information processing apparatus capable of accurately controlling DMA transfer of a plurality of pieces of data present in a memory with a simple hardware configuration, and an information processing method for use therewith. A memory 33 is provided with a descriptor table T0 corresponding to a queue Q0 and a descriptor table T1 corresponding to a queue Q1. In registers R0 and R1 of a descriptor controller 51, the descriptor number constituting the descriptor table T0 and the descriptor number constituting the descriptor table T1 are recorded, respectively. In caches C0 and C1 of a descriptor obtaining section 52, descriptors of the descriptor table T0 and descriptors of the descriptor table T1 are recorded, respectively. A descriptor selector 53 selects one of the caches C0 and C1 in accordance with a predetermined rule. The present invention can be applied to all electronic apparatuses for performing DMA transfer.
Public/Granted literature
- US20090216914A1 Information Processing Apparatus and Information Processing Method Public/Granted day:2009-08-27
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