PCI-to-PCI非透明桥的设计和应用

The Design and Application of PCI-to-PCI Non-transparent Bridge

以PCI6254为例详细阐述了PCI总线中PCI-to-PCI非透明桥设计和应用。主要包括中断、复位、时钟的处理,以及桥的配置空间、初始化和地址空间映射方式等设计内容,和PCI-to-PCI非透明桥提供的消息中断方式、共享内存方式和直接映射方式三种不同特色应用方式各自的特点。

This paper describes how to design and use a PCI-to-PCI Non-transparent Bridge in use of PCI6254. The design content includes the dispose of Interrupt, Reset, Clocks, and the Configuration, the Initialization, the Transaction of the hridge. And the application content includes the three useful characteristic, the message interrupt mode, the shared memory mode, and the direct-mapped space mode.