Source Status Options Screen

R

to normal. The valid range is the Almost Full Assert value to 508 and is also measured from the full level.

Clocking

Clock Mode

The Sink core netlist will contain a complete clocking solution if Embedded Clocking is selected. If User Clocking is selected, you must provide a clock generation method external to the Source core. For more information, see “Sink Clocking Options,” page 111.

Clock Distribution

If User Clocking is selected for the Virtex-4 and Virtex-5 device architectures, the RDClk clocking implementation can use either global or regional clock buffers. For more information, see “Sink Clocking Options,” page 111.

Source Status Options Screen

This screen contains options for the static configuration parameters of the Source core. The static configuration parameters below determine the behavior of the status interface.

Calendar

This describes the status pattern that the Source core expects on its status interface.

Iterations of Calendar Sequence Before DIP2

This is the value of static configuration signal SrcCalendar_M; it is the number of times the Source core will expect the calendar sequence to repeat before seeing a DIP2 value and framing on TStat. The valid range is 1 to 256.

Length of Calendar Sequence

This is the value of static configuration signal SrcCalendar_Len; it is the number of entries in the calendar sequence. The valid range is 1 to 512.

Load Init File

If this option is selected, the Source core calendar block RAM will be initialized at startup with a sequence loaded from a COE file.

Load Coefficients

This option lets you select the name of the COE file with calendar programming information. For more information see “Calendar COE File Format,” page 50.

Show Coefficients

This option lets you view the contents of the loaded COE file.

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UG181 June 27, 2008

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Xilinx UG181 manual Source Status Options Screen, Clocking, Clock Mode, Clock Distribution

UG181 specifications

Xilinx UG181 refers to the User Guide for the Xilinx 7 Series FPGAs, which offers a comprehensive overview of the architecture, capabilities, and features of these powerful field-programmable gate arrays (FPGAs). Designed to cater to a wide range of applications, Xilinx 7 Series FPGAs are widely adopted in industries such as telecommunications, automotive, aerospace, and consumer electronics.

One of the main features of the Xilinx 7 Series FPGAs is their use of advanced 28nm technology, which enables them to achieve high performance while maintaining low power consumption. This fine process technology not only ensures better power efficiency but also allows for increased logic density. The 7 Series includes several families, such as Artix-7, Kintex-7, and Virtex-7, each tailored for specific application demands ranging from cost-sensitive solutions to high-performance data processing.

Xilinx 7 Series FPGAs also incorporate a rich set of programmable logic resources. This includes Look-Up Tables (LUTs), Flip-Flops, and Digital Signal Processing (DSP) slices that have been optimized for various arithmetic functions. With several thousands of logic cells available, designers can implement complex algorithms and systems directly in hardware for improved performance over traditional software solutions.

In addition to their logic capabilities, Xilinx 7 Series FPGAs feature an array of high-speed serial communication interfaces. These include support for technologies like PCI Express, Gigabit Ethernet, and Serial RapidIO, which facilitate efficient data transfer and integration into enterprise-level systems. The presence of high-speed transceivers also makes them ideal for applications that require fast data handling like video processing or high-frequency trading.

Furthermore, these FPGAs offer extensive memory options, including support for a wide range of external memory interfaces. This versatility allows for the integration of high-bandwidth memory solutions, which is essential for performance-intensive applications. With the introduction of the Memory Controller IP, users can easily connect various memory types, ensuring flexibility in system design.

Finally, Xilinx has made significant strides in development tools for 7 Series FPGAs, providing a robust ecosystem for design engineers. With design suites such as Vivado and SDK, users benefit from a comprehensive platform for deciding, simulating, and implementing designs efficiently. The combination of advanced hardware capabilities and powerful software tools solidifies the position of Xilinx 7 Series FPGAs as a preferred choice for custom digital hardware design across various industries.