1 Functional Descriptions

The PCIe subsystem uses several built-in features such as transceivers, embedded PCIe controller, and programmable FPGA resources. The functional details of the PCIe subsystem are described in this chapter.

As shown in the following figure, the PCIESS is composed of four sub-modules:

  • Physical layer
  • PCIe DL and TL
  • Bridge layer
  • AXI layer
  • Configuration interface (DRI and APB)
Figure 1-1. Embedded PCIESS Architecture