METHOD AND APPARATUS FOR DISTRIBUTED DIRECT MEMORY ACCESS FOR SYSTEMS ON CHIP
- 申请公布号：
- EP1430405(B1)
- 申请号：
- EP20020757489
- 申请日期：
- 2002.08.30
- 申请公布日期：
- 2007.01.24
- 申请人：
- INTEL CORPORATION
- 发明人：
- GANAPATHY, KUMAR;KANAPATHIPPILLAI, RUBAN;SHAH, SAURIN;MOUSSA, GEORGE;PHILHOWER, EARLE, F., III;SHAH, RUCHIR
- 分类号：
- G06F13/28
- 主分类号：
- G06F13/28
- 摘要：
- <p>A distributed direct memory access (DMA) method, apparatus, and system is provided within a system on chip (SOC). DMA controller units are distributed to various functional modules desiring direct memory access. The functional modules interface to a systems bus over which the direct memory access occurs. A global buffer memory, to which the direct memory access is desired, is coupled to the system bus. Bus arbitrators are utilized to arbitrate which functional modules have access to the system bus to perform the direct memory access. Once a functional module is selected by the bus arbitrator to have access to the system bus, it can establish a DMA routine with the global buffer memory.</p>
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