||PCIe to Parallel Interface bridge in low-cost FPGA, volume 1
||Sørensen, Rasmus Bo
||Sparsø, Jens (Embedded Systems Engineering, Department of Informatics and Mathematical Modeling, Technical University of Denmark, DTU, DK-2800 Kgs. Lyngby, Denmark)
||Technical University of Denmark, DTU, DK-2800 Kgs. Lyngby, Denmark
||The objective of this project has been to design a bridge between a PCI Express interface
on one side and a parallel interface on a Vitesse switch chip on the other side. In
addition, we found it appropriate to enhance the bridge with a serial interface for communication
to peripheral components. The bridge should be designed for implementation
in a low-cost FPGA.
We have developed a bridge for communication between a PCI Express interface on
one side and a parallel interface and a serial interface on the other side. The developed
bridge has the capability of interfacing against 3 different parallel interfaces and 4 different
serial interfaces. Given the requirements of the design, we have chosen the best
suited FPGA for the implementation of the bridge, a EP4CGX15BF14C8 from Altera.
The implemented design has been tested through simulation using ModelSim.
The schematic for a PCB reference board has been made. Such an interface board can
be used for testing the bridge against Vitesse switch reference systems.
By making use of the split transaction capability of the PCI Express interface, we avoid
that the serial and parallel interfaces restrict each other, with regards to their bandwidth.
||Technical University of Denmark (DTU) : Kgs. Lyngby, Denmark
Creation date: 2010-07-07
Update date: 2010-07-07