Interactive set-top box having a unified memory architecture

Details Interactive set-top box having a unified memory architecture Interactive set-top box having a unified memory architecture

2011-07-26

2011-07-26

Hirl, Joseph P (Department: 2426)

Computer graphics processing and selective visual display system

Computer graphics display memory system

Graphic display memory controller

C345S501000, C345S530000, C345S535000, C725S100000, C725S131000

Reexamination Certificate

active

07986326

ABSTRACT:
According to one embodiment, a graphics/video processor includes a memory controller. The memory controller includes a first arbiter that receives memory client requests to access a memory device, and a first memory buffer coupled to the first arbiter. The first arbiter stores client requests that are selected by the first arbiter. The memory controller also includes a second arbiter coupled to the first memory buffer and a second memory buffer coupled to the second arbiter. The second arbiter receives requests from the memory client requests stored in the first memory buffer. The second memory buffer stores the client requests selected by the second arbiter. Further, the memory controller includes a third arbiter coupled to the second memory buffer. The third arbiter provides access of the memory device to the client requests stored in the second memory buffer.

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