PCI Express: Generalidades

PCI Express: Una Visión Inicial

uando se hace referencia al rendimiento de un equipo de cómputo (especialmente en las computadoras personales, PC), el principal aspecto considerado es la velocidad del procesador. Sin embargo, cuando hablamos de computadoras de propósito general, la velocidad de transferencia de datos puede ser un parámetro tan o incluso más importante en un momento dado. Comparado con el avance continuo en di...

PCI-express Optical Receiver, PEXOR

A PCI Express (PCIe) to optical link interface (PEXOR: Pci-EXpress Optical Receiver) was developed to connect front end boards to standard PCs. The center of the PEXOR is a high performance Lattice FPGA connecting three main components together: 1) A four lane PCIe endpoint device (4*2.5 Gbits/s). 2) Four high speed optical transceivers (4*2 GBits/s, SFP [1]) as inputs for front end electronics...

Understanding PCI Bus, PCI-Express and In finiBand Architecture

There is some confusion in the market place concerning the replacement of the PCI Bus (Peripheral Components Interface) by either the InfiniBandSM Architecture (IBA), PCI-Express (formerly 3GIO Third Generation I/O), or upgrades to the PCI bus itself. Initially the InfiniBand architecture was viewed as the replacement for the PCI bus, yet the PCISIG (PCI Special Interest Group) recently announc...

Circuit Design of PCI Express Retry Mechanisms

TLP retry mechanism is an effective measure of PCI Express to ensure data reliable transmissions. The paper theoretically analyzes reasons for retransmission, operating rules of retransmission and factors affecting the size of retry buffer. On this basis, proposes a circuit structure of implementing TLP retry mechanisms, describing the implementation process of retry management, and conducts fu...

IP Compiler for PCI Express User Guide