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Managing the resources processing data transfers in input/output chips using a FIFO memory to hold the details of resources that have been timed out.
Managing the resources processing data transfers in input/output chips using a FIFO memory to hold the details of resources that have been timed out.
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机译:使用FIFO存储器来管理输入/输出芯片中数据传输的资源,以保存已超时资源的详细信息。
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摘要
Disclosed is a system for managing the resources processing data transfers in a transaction based input/output chip of a computer system. A transaction is associated with a resource, 18 the transaction being a request packet and a corresponding response packet. The system has a transaction table 10 for holding one resource for each request until the resource has been processed and a resource management 12 for storing information about the availability of these resources, which has become available before a predetermined timeout period T has been exceeded. The system has a FIFO (first-in first-out) memory 14 for buffering those resources, which have been made available after the first timeout period and a second timeout period Q have been exceeded. An arbiter circuit 16 for chooses the resources from the resource management, if any are available, if not the timed-out resources from the FIFO memory are used.
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