发明授权
- 专利标题: Distributed direct memory access for systems on chip
- 专利标题(中): 针对片上系统的分布式直接存储器访问
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申请号: US11036828申请日: 2005-01-14
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公开(公告)号: US07464197B2公开(公告)日: 2008-12-09
- 发明人: Kumar Ganapathy , Ruban Kanapathippillai , Saurin Shah , George Moussa , Earle F. Philhower, III , Ruchir Shah
- 申请人: Kumar Ganapathy , Ruban Kanapathippillai , Saurin Shah , George Moussa , Earle F. Philhower, III , Ruchir Shah
- 申请人地址: US CA Santa Clara
- 专利权人: Intel Corporation
- 当前专利权人: Intel Corporation
- 当前专利权人地址: US CA Santa Clara
- 代理机构: Blakely, Sokoloff, Taylor & Zafman LLP
- 主分类号: G06F13/28
- IPC分类号: G06F13/28
摘要:
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.
公开/授权文献
- US20050125572A1 Distributed direct memory access for systems on chip 公开/授权日:2005-06-09