发明授权
US07143220B2 Apparatus and method for granting concurrent ownership to support heterogeneous agents in on-chip busses having different grant-to-valid latencies
有权
授予并发所有权的装置和方法,以在具有不同授权与有效延迟的片上总线中支持异构代理
- 专利标题: Apparatus and method for granting concurrent ownership to support heterogeneous agents in on-chip busses having different grant-to-valid latencies
- 专利标题(中): 授予并发所有权的装置和方法,以在具有不同授权与有效延迟的片上总线中支持异构代理
-
申请号: US10797771申请日: 2004-03-10
-
公开(公告)号: US07143220B2公开(公告)日: 2006-11-28
- 发明人: Samantha J. Edirisooriya , Sujat Jamil , David E. Miner , R. Frank O'Bleness , Steven J. Tu , Hang T. Nguyen
- 申请人: Samantha J. Edirisooriya , Sujat Jamil , David E. Miner , R. Frank O'Bleness , Steven J. Tu , Hang T. Nguyen
- 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: G06F13/36
- IPC分类号: G06F13/36 ; G06N7/06
摘要:
A method and apparatus for supporting heterogeneous agents in on-chip busses. In one embodiment, the method includes the detection of a bus arbitration event between at least a first bus agent and a second bus agent. In one embodiment, a bus arbitration event is detected when at least the first bus agent and the second bus agent assert their respective bus request signals in a single clock cycle. Once a bus arbitration event is detected, bus ownership may be granted to both the first bus agent and the second bus agent, when the first bus agent and the second bus agent have different grant-to-valid latencies. In the embodiment, heterogeneous bus agents may coexist on a bus without requiring wasted or unused bus cycles following establishment of bus ownership. Other embodiments are described and claimed.