论文部分内容阅读
系统地论述了PCI总线的仲裁机制和常用仲裁协议,简要地分析了常用仲裁协议的优缺点,并在此基础上介绍了一种基于循环优先级仲裁协议和FIFO队列相结合的PCI总线仲裁器的实现方法,旨在解决目前PCI总线仲裁协议中由于优先级循环出现的特权插队问题,并详细说明了基于循环优先级仲裁协议与FIFO队列相结合的总线仲裁器的设计和FPGA硬件实现。
This paper systematically discusses the PCI bus arbitration mechanism and commonly used arbitration protocols, briefly analyzes the advantages and disadvantages of commonly used arbitration protocols, and based on this, introduces a PCI bus arbiter based on cyclic priority arbitration protocol and FIFO queue The purpose of this method is to solve the problem of the privileged interrupt in the current PCI bus arbitration protocol, and the design of the bus arbiter based on cyclic priority arbitration protocol and the FIFO queue is described in detail.