Systems and methods for efficient memory management

Details Systems and methods for efficient memory management Systems and methods for efficient memory management

2004-07-15

2009-10-13

Sorrell, Eron J (Department: 2182)

Electrical computers and digital data processing systems: input/

Input/output data processing

Direct memory accessing

C710S020000, C710S021000, C710S056000, C711S120000, C712S009000

Reexamination Certificate

active

07603488

ABSTRACT:
Systems and methods for providing efficient memory allocation, reduced processor intervention and power consumption, and increased memory access bandwidth. One embodiment comprises a system including a plurality of memory units which are accessible in parallel, a dynamic memory unit configured to dynamically allocate and deallocate storage space in the memory units, and a plurality of direct memory access (DMA) engines configured to access the memory units in parallel through the memory management subsystem. The system may be implemented in the MAC engine of a device that communicates with other devices via a wireless communication link. This embodiment may store packets in FIFOs within the memory units as elements of linked list data structures that can be joined together without having to move the previously stored data. DMA engines access a context table to obtain DMA channel information that enables them to move data through appropriate DMA channels.

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