Electrical computers and digital data processing systems: input/ – Input/output data processing – Direct memory accessing
Reexamination Certificate
2007-04-03
2007-04-03
Peyton, Tammara (Department: 2182)
Electrical computers and digital data processing systems: input/
Input/output data processing
Direct memory accessing
C710S005000, C710S020000, C710S024000, C710S062000, C710S312000
Reexamination Certificate
active
10448237
ABSTRACT:
The present invention provides for asynchronous DMA command completion notification in a computer system. A command tag, associated with a plurality DMA command is generated. A DMA data movement command having the command tag is grouped with another DMA data movement command having the command tag. DMA commands belonging to the same tag group are monitored to see whether all DMA commands of the same tag group are completed.
REFERENCES:
patent: 6205494 (2001-03-01), Williams
patent: 6324598 (2001-11-01), Olson et al.
patent: 6609192 (2003-08-01), Guthrie et al.
patent: PCT/IB2005/003974 (2005-07-01), None
Day Michael Norman
Hofstee Harm Peter
Johns Charles Ray
Liu Peichum Peter
Truong Thuong Quang
Carr LLP
Peyton Tammara
Rifai D'Ann N.
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