Method and apparatus for accelerating the transfer of graphical

Details Method and apparatus for accelerating the transfer of graphical Method and apparatus for accelerating the transfer of graphical

1998-03-30

2000-02-08

Shin, Christopher B.

Electrical computers and digital data processing systems: input/

Input/output data processing

Direct memory accessing

710 33, 710 56, G06F 1300

Patent

active

060237384

ABSTRACT:
A direct memory access (DMA) arrangement having a DMA circuit which is positioned with an input/output device, the DMA circuit including a first register for storing a reference value pointing to a first data structure established by an application program which includes details of a transfer buffer in memory in which data is stored for transfer to the I/O device, two additional registers for storing an address and a range at which the data is stored within the transfer buffer in memory, and a fourth register for storing a reference value pointing to a second data structure which includes details describing a notification area of memory at which a notification from the DMA circuit that a transfer of data has been completed may be stored.

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