发明名称 |
Bus interface unit for preventing deadlock |
摘要 |
A bus interface unit has an arbitrating unit, in response to cycle requests received from internal devices of a processor and a resumption request, for determining an internal device having the highest priority and generating a cycle acknowledgment signal representing thereof; a queue input multiplexing unit, in response to the cycle acknowledgment signal, for selecting cycle queue data from the determined internal device to generate selected cycle queue data; a cycle queue storing unit for storing the selected cycle queue data and state information under; and a queue controlling unit for controlling the cycle queue storing unit to store the selected cycle queue data and the state information under the condition that a back-off condition occurs, and for resuming a cycle under the condition that the back-off condition is cleared by using the stored selected cycle queue data based on the state information to provide the resumption request to the arbitrating unit.
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申请公布号 |
US5949980(A) |
申请公布日期 |
1999.09.07 |
申请号 |
US19960773562 |
申请日期 |
1996.12.27 |
申请人 |
HYUNDAI ELECTRONICS INDUSTRIES CO., LTD. |
发明人 |
LEE, SUK JOONG;KIM, HAN HEUNG |
分类号 |
G06F13/364;(IPC1-7):G06F13/14 |
主分类号 |
G06F13/364 |
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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