该地址通过PCI桥y1找到挂载在PCI总线y0上的PCI设备y02； PCI设备访问DDR的流程： PCI设备y11尝试将数据给到DDR地址空间； HOST主桥y接收到PCI设备y11尝试访问的地址，并将其转换为CPU域地址； DMA实现PCI设备数据到DDR的数据搬运（可以不使用DMA，通过CPU进行数据搬运，但 ...

最早的PC机的系统总线是IBM公司于1981年推出的基于准16位机PC/XT的总线，称为PC总线。1984年IBM公司推出了16位PC机PC/AT，其总线 ...

在Linux内核2.6.13-rc3以前，驱动和设备之间的绑定和解绑只能通过insmod(modprobe)和rmmod来实现，但是这种实现方法有一个弊端，就是一旦绑定或者解绑定都是针对驱动与其所支持的所有设备之间进行，无法实现驱动单独绑定或者解绑定一个设备。然而，在Linux内核2.6. ...

PCI Express (PCIe) has been around since 2003, and in that time it has managed to become the primary data interconnect for not only expansion cards, but also high-speed external devices. What also ...

Although the ability to expand a home computer with more RAM, storage and other features has been around for as long as home computers exist, it wasn’t until the IBM PC that the concept of a fully ...

The XIO2001 is a single-function PCI Express to PCI translation bridge that is fully compliant to the PCI Express to PCI/PCI-X Bridge Specification, Revision 1.0. For downstream traffic, the bridge ...

This Design Idea describes a VHDL implementation of a PCI 2.2-bus arbiter (Figure 1). Any PCI system may have one or more PCI-master devices. Most devices can behave as target hosts, but one must be a ...

A brief timeline of PC graphics bus interfaces. The history of the Peripheral Component Interconnect (PCI) bus. The status of the current industry-standard PCI Express (PCIe) bus. Prior to the PC era, ...

Why the need for PCI Express?As processor clock speeds increase, parallel buses such as PCI become harder to implement. Signal skew and fan-out restrictions restrict the bandwidth achievable on a ...

PCI Express is a technology that consistently makes headlines, with new specifications boasting ever-improving performance regularly appearing in the news. It may come as a surprise, then, to learn ...

OPINION: When new PC standards come online there is a danger to assume that the benefit will come from an immediate performance boost. Danger because one of the defining features that sets modern ...

The common hardware interface in PCs, Macs and other computers for connecting peripheral devices such as storage drives and graphics cards. PCI Express (PCIe) was introduced in 2002 as "Third ...