Method and apparatus for memory address generation using...

Details Method and apparatus for memory address generation using... Method and apparatus for memory address generation using...

2006-11-30

2009-12-15

Chace, Christian P (Department: 2187)

Electrical computers and digital processing systems: memory

Address formation

Generating a particular pattern/sequence of addresses

C711S218000

Reexamination Certificate

active

07634633

ABSTRACT:
Memory addresses for a data stream are generated by a stream parameter generator that calculates a set of stream parameters for each of a number of memory access patterns and a regional address generator that calculates a sequence of addresses of a memory access pattern from a corresponding set of stream parameters. The stream parameters, which may include START_ADDRESS, STRIDE, SKIP and SPAN values for example, are updated in accordance with an update( ) function. The update( ) function, which may be defined by a user, defines how stream parameters change from one memory access pattern to the next. In one application, the update( ) function describes how the position, shape and/or size of a region of interest in an image changes or is expected to change.

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Lopez-Lagunas, et al., “Memory Bandwidth Optimization Through Stream Descriptors” ITESM Campus Toluca and Motorola, pp. 1-8;Pub. Date Sep. 17, 2005

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