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 PDF

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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
Application number
PCT/US2005/016402
Other languages
French (fr)
Other versions
WO2006121443A2 (en
Inventor
Howard G Sachs
Alan Yiping Guo
Original Assignee
Telairity Semiconductor Inc
Howard G Sachs
Alan Yiping Guo
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Telairity Semiconductor Inc, Howard G Sachs, Alan Yiping Guo filed Critical Telairity Semiconductor Inc
Priority to PCT/US2005/016402 priority Critical patent/WO2006121443A2/en
Publication of WO2006121443A2 publication Critical patent/WO2006121443A2/en
Publication of WO2006121443A3 publication Critical patent/WO2006121443A3/en
Priority to IL187263A priority patent/IL187263A0/en

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Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/14Handling requests for interconnection or transfer
    • G06F13/20Handling requests for interconnection or transfer for access to input/output bus
    • G06F13/28Handling requests for interconnection or transfer for access to input/output bus using burst mode transfer, e.g. direct memory access DMA, cycle steal

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.
PCT/US2005/016402 2005-05-10 2005-05-10 Direct memory access (dma) method and apparatus and dma for video processing WO2006121443A2 (en)

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)

* Cited by examiner, † Cited by third party
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
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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