中文摘要：

在构建CPU（Central Process Unit ，CPU）与GPU（Graphic Process Unit）或者CPU与其它设备协同计算的过程中，通过PCI（Peripheral Component Interconnect）总线将GPU等其他设备连接至CPU ，承担并行计算的任务。为了解决PCI接口芯片与GPU芯片之间的异步传输和时序匹配问题，基于 PCI总线规范与GPU 芯片的时序规范，采用跨时钟域信号的处理方法，设计了一个CPU与GPU 之间跨时钟域连接的时序匹配接口电路。通过仿真，验证了该电路的正确性。结果表明，该电路可工作在252 M Hz频率下，能够满足GPU 与CPU 间接口电路对速率和带宽的要求。

英文摘要：

During constructing the Collaborative Computing between Central Process Unit and Graphic Process Unit or Central Process Unit and other device .Through the Peripheral Component Interconnect connects Graphic Process Unit and Central Process Unit ,it＇ s responsiable for doing the parrallel computing . Point at the asyncronous transmission and timing matched in the connection of Peripheral Component Interconnect IP core and the Graphic Process Unit ,based on the standard of the Peripheral Component Interconnect and the Graphic Process Unit chip , use the method of processing asyncronous signals ,this paper design an timing matched interface circuit between the Central Process Unit and Graphic Process Unit ,which aims at the different clock systems and the timing matced of them .The simulation results prove that the interface circute between Central Process Unit and Graphic Process Unit can works at 252 M Hz frequency ,it achieves the circuit demand ,and realize high-speed data transmission between Graphic Process Unit and Central Process Unit .