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Appendix B

Core Verification, Compliance, and Interoperability

The GEMAC core has been verified with extensive simulation and hardware testing.

Verification by Simulation

A highly parameterizable transaction-based test bench (not part of the core deliverables) was used to test the core. Tests include:

•Register Access

•MDIO Access

•Frame Transmission and error handling

•Frame Reception and error handling

•Address Filtering

Hardware Verification

The GEMAC core has been tested in a variety of hardware test platforms at Xilinx to include a variety of parameterizations, including the following.

The core has been tested with the Ethernet 1000BASE-X PCS/PMA or SGMII core from Xilinx. This follows the architecture shown in Figure 11-2, page 115. A test platform was built around these cores, including a back-end FIFO capable of performing a simple ping function, and a test pattern generator. Software running on the embedded PowerPC® processor was used to provide access to all configuration, status and statistical counter registers. Version 3.0 of this core was taken to the University of New Hampshire Interoperability Lab (UNH IOL) where conformance and interoperability testing was performed.

The core has been tested with an external 1000BASE-T PHY device. The MAC was connected to the external PHY device using GMII, RGMII, and SGMII (in conjunction with the Ethernet 1000BASE-X PCS/PMA or SGMII core).

The core has been tested with the Ethernet Statistics core from Xilinx, following the architecture show in Figure 11-5, page 120.

1-Gigabit Ethernet MAC v8.5 User Guide

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UG144 specifications

The Xilinx UG144, a comprehensive user guide for the versatile Zynq-7000 SoC (System on Chip) architecture, serves as an essential resource for developers and engineers designing embedded systems. Emphasizing the blend of programmable logic and processing power, this guide highlights the array of features and technologies that make the Zynq-7000 series particularly attractive for a wide range of applications.

One of the standout characteristics of the Zynq-7000 is its dual-core ARM Cortex-A9 processor, which delivers substantial performance for complex processing tasks. This soft processor enables high-speed computation, making it ideal for applications in fields such as automotive, industrial automation, and telecommunications. The guide emphasizes the ability to run multiple operating systems, including Linux and real-time operating systems, providing developers with versatile options for application design.

Additionally, the Xilinx UG144 outlines the extensive programmable logic resources integrated within the Zynq-7000 device. This FPGA fabric allows for customization and parallel processing capabilities, allowing designers to create powerful hardware accelerators tailored to specific application needs. The guide details how these programmable logic resources can easily interface with the ARM processors through a high-bandwidth AXI interface, promoting efficient data flow between the hardware and software components.

Key features highlighted in the UG144 include advanced connectivity options, including PCIe, USB, and Serial interfaces, which facilitate communication with other devices and systems. Furthermore, the guide provides insights into the supported design tools, such as the Xilinx Vivado Design Suite, which aids in both hardware and software co-design. This integrated environment significantly reduces development time while providing an efficient workflow for prototyping and testing.

In terms of performance optimizations, the guide discusses support for digital signal processing (DSP) capabilities, making the Zynq-7000 suitable for high-performance applications such as video processing and data analytics. The built-in DSP slices allow for efficient execution of complex mathematical functions, which is crucial for real-time data processing tasks.

Overall, the Xilinx UG144 guide encapsulates the versatility, performance, and flexibility of the Zynq-7000 SoC architecture. With its combination of ARM processing and programmable logic, along with robust connectivity options and development tools, it empowers engineers to create innovative solutions across a spectrum of industries, solidifying Xilinx's position as a leader in the field of embedded system design.
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