External direct memory access of embedded controller memory

Details External direct memory access of embedded controller memory External direct memory access of embedded controller memory

2011-07-12

2011-07-12

Tsai, Henry W (Department: 2184)

Electrical computers and digital data processing systems: input/

Input/output data processing

Direct memory accessing

C710S026000, C710S108000

Reexamination Certificate

active

07979601

ABSTRACT:
An embedded controller capable of providing direct memory access (DMA) to memory for a host. The controller may include a processor, a memory medium, and an interface coupled to the memory medium. The interface may be configured to couple to a host and receive a DMA request. The DMA request may include a request to read data from a memory location in the memory medium or a request to write data to a memory location in the memory medium. The DMA request may include a relative memory address. The interface may be configured to translate the relative memory address into a first address of the memory medium. Accordingly, the interface may perform operations according to the DMA request using the first address of the memory medium. The processor may be configured to operate according to data stored in the memory medium.

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