发明名称 |
Bus contention resolution in data processing apparatus having multiple independant users. |
摘要 |
<p>A multiple user shared bus contention resolution facility permits processing elements (PE's) to communicate with other PE's entirely under the control of each PE without a separate bus controller. Each PE has means for broadcasting its priority code on a contention portion of the bus and for sampling the bus after a delay in which it has received the codes from other PE's. Each PE holds its priority code on the bus for a further delay during which other PE's can sample the priority code. The PE's resolve contention for access to the information portion of the bus in a multi stage contention sequence. System usage, made possible by peer-to-peer distribution of bus access control, includes dynamic driven priority schemes, a variety of operating modes and hence flexible multiplexing of message traffic. </p> |
申请公布号 |
EP0078389(A1) |
申请公布日期 |
1983.05.11 |
申请号 |
EP19820108526 |
申请日期 |
1982.09.16 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
GRICE, DONALD GEORGE;HOWLEY, FRANK EDWARD |
分类号 |
G06F13/374;(IPC1-7):06F3/04 |
主分类号 |
G06F13/374 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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