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PCI-to-PCI bridges with a timer register for storing a delayed transaction latency
PCI-to-PCI bridges with a timer register for storing a delayed transaction latency
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机译:具有定时器寄存器的PCI到PCI桥接器,用于存储延迟的事务延迟
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摘要
To improve the efficiency of delayed transactions in bus-to- bus bridge systems which include at least one interface to a PCI bus, a bridge system is disclosed including at least a primary interface and an interface to a secondary subsystem for interconnecting a primary PCI bus system and the secondary subsystem. The system comprises a delayed transaction mechanism for enabling a transaction source attached to the primary PCI bus system to effect delayed transactions with a target in the secondary subsystem. This system has a programmable delay transaction timer which provides a degree of flexibility in the configuration of PCI systems. This flexibility can be exploited to provide considerable efficiency gains, albeit at the expense of some deviation of the strict requirements of the PCI Specification.
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