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Open interface design based on PCI bus

2013-09-20
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It uses programmable logic device CPLD, which is divided into four modules: control register module, PCI controller state machine module, SRAM controller module and arbitrator module. They respectively complete the communication and analysis of PCI bus, control and flip of PCI status, read and write data and exchange data of SRAM interface, and arbitration mechanism of PCI equipment to realize PCI interface. It can connect various field communication cards of PCI interface, thus improving the openness of the system. Keywords：Bus; Interface; CPLD; Openness The design of opening interface based on PCI local bus Liu Zhewei1 JinWenbin1 Yan Jianjun1 Wang Xiaoxia2 (Zhejiang Institute of Mechanical & Electrical Engineering,Hangzhou1 ,310053, Hangzhou Zhengu Science and Technology Ltd2,310020) Abstract: The PCI interface is based on CPLD, it is divided into four modules , Control of register module realize communication , PCI controller state module, SRAM controller module and Arbitration module. they carry on correspondence and analyse PCI bus, control PCI state, write-read and exchange with data from SRAM interface, arbitrate PCI device respectively. It may link various communication cards with PCI interface, and improves the systematic openness.Key words：Bus; Interface; CPLD; Openness

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