WO2006121443A3 - Direct memory access (dma) method and apparatus and dma for video processing - Google Patents
Direct memory access (dma) method and apparatus and dma for video processing Download PDFInfo
- Publication number
- WO2006121443A3 WO2006121443A3 PCT/US2005/016402 US2005016402W WO2006121443A3 WO 2006121443 A3 WO2006121443 A3 WO 2006121443A3 US 2005016402 W US2005016402 W US 2005016402W WO 2006121443 A3 WO2006121443 A3 WO 2006121443A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- dma
- memory access
- direct memory
- video processing
- block
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/14—Handling requests for interconnection or transfer
- G06F13/20—Handling requests for interconnection or transfer for access to input/output bus
- G06F13/28—Handling requests for interconnection or transfer for access to input/output bus using burst mode transfer, e.g. direct memory access DMA, cycle steal
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Bus Control (AREA)
Abstract
A direct memory access method and apparatus therefor are disclosed. A block of data (122a-f) to be transferred from memory using DMA includes organizing the block of data as a linked list (122) of segments of the block of data. A processor (112) specifies a staring address of a starting element in the linked list. Subsequent transfers from memory (116) can occur according to DMA transfer techniques without further intervention from the processor.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US2005/016402 WO2006121443A2 (en) | 2005-05-10 | 2005-05-10 | Direct memory access (dma) method and apparatus and dma for video processing |
IL187263A IL187263A0 (en) | 2005-05-10 | 2007-11-08 | Direct memory access (dma) method and apparatus and dma for video processing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US2005/016402 WO2006121443A2 (en) | 2005-05-10 | 2005-05-10 | Direct memory access (dma) method and apparatus and dma for video processing |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2006121443A2 WO2006121443A2 (en) | 2006-11-16 |
WO2006121443A3 true WO2006121443A3 (en) | 2007-04-12 |
Family
ID=37397004
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2005/016402 WO2006121443A2 (en) | 2005-05-10 | 2005-05-10 | Direct memory access (dma) method and apparatus and dma for video processing |
Country Status (2)
Country | Link |
---|---|
IL (1) | IL187263A0 (en) |
WO (1) | WO2006121443A2 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5488724A (en) * | 1990-05-29 | 1996-01-30 | Advanced Micro Devices, Inc. | Network controller with memory request and acknowledgement signals and a network adapter therewith |
US20030016946A1 (en) * | 2001-07-18 | 2003-01-23 | Muzaffar Fakhruddin | Audio/video recording apparatus and method of multiplexing audio/video data |
US20050036516A1 (en) * | 2003-08-14 | 2005-02-17 | Francis Cheung | System and method for data packet substitution |
US20050160201A1 (en) * | 2003-07-22 | 2005-07-21 | Jeddeloh Joseph M. | Apparatus and method for direct memory access in a hub-based memory system |
-
2005
- 2005-05-10 WO PCT/US2005/016402 patent/WO2006121443A2/en active Application Filing
-
2007
- 2007-11-08 IL IL187263A patent/IL187263A0/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5488724A (en) * | 1990-05-29 | 1996-01-30 | Advanced Micro Devices, Inc. | Network controller with memory request and acknowledgement signals and a network adapter therewith |
US20030016946A1 (en) * | 2001-07-18 | 2003-01-23 | Muzaffar Fakhruddin | Audio/video recording apparatus and method of multiplexing audio/video data |
US20050160201A1 (en) * | 2003-07-22 | 2005-07-21 | Jeddeloh Joseph M. | Apparatus and method for direct memory access in a hub-based memory system |
US20050036516A1 (en) * | 2003-08-14 | 2005-02-17 | Francis Cheung | System and method for data packet substitution |
Also Published As
Publication number | Publication date |
---|---|
IL187263A0 (en) | 2008-02-09 |
WO2006121443A2 (en) | 2006-11-16 |
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