mac和phy之间的接口协议

《PCI Express体系结构导读》书籍影印pdf版本，内容涵盖PCI总线基础知识及PCIe总线体系架构。

Realtek PCIe GBE Family Controller win7驱动64位

本文简答介绍了解决复杂的PCIe链接的技巧

关于PCIE，usb，sata的phy层，结构描述，适合硬件工程师学习

PCIe SPEC

7 Series Integrated Block for PCIe (v1.7)，有关PCIE IP核的使用

pg054-7series-pcie 官方资料 对PCIe编程爱好者具有参考和借鉴意义。

PCI 是外围设备互连（Peripheral Component Interconnect）的简称，作为一种通用的 总线接口标准，它在目前的计算机系统中得到了非常广泛的应用。PCI 提供了一组完整的 总线接口规范，其目的是描述如何将计算机系统中的外围设备以一种结构化和可控化的方 式连接在一起，同时它还刻画了外围设备在连接时的电气特性和行为规约，并且详细定义 了计算机系统中的各个不同部件之间应该如何正确地进行交互。

This paper presents power management guidelines for PCI Express links on Intel-based Mobile platforms. It describes the mapping from platform sleeping states and device power states to link power states, including the procedure to support Mobile-specific S1/POS and CPU C3/C4 scenarios. Device and platform power saving opportunities are identified for each link power state. L1 entry policy is also recommended to optimize device power. Several power optimization techniques are described, including minimizing flow control updates and acknowledgement packets to improve bandwidth efficiency, and pipelining packets to increase opportunities for active state link power management. These power management guidelines enable architectural innovation to achieve power-optimized interconnect performance.