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Chapter 4: Designing with the Core

SrcFFClk

 

 

 

SrcFFWrEn_n

 

 

 

SrcFFAddr

CH1

CH1

CH2

SrcFFData

 

 

 

SrcFFMod

000

 

000

SrcFFSOP

SrcFFEOP

SrcFFErr

SrcFFAlmostFull_n

SrcFFOverflow_n

Figure 4-24:Source FIFO Almost-full Condition

Source FIFO Overflow

Figure 4-25shows the overflow response of the Source FIFO. The assertion of SrcFFAlmostFull_n indicates that the FIFO is almost full, and that data should no longer be written into the FIFO. If data continues to be written into the FIFO, it may overflow and result in data loss. The assertion of SrcFFOverflow_n indicates that an overflow has occurred and that the current data (along with any subsequent data written to the FIFO) will be lost. You may resume writing data to the FIFO once SrcFFAlmostFull_n is deasserted

SrcFFClk

 

 

SrcFFWrEn_n

 

 

SrcFFAddr

CH1

CH2

SrcFFData

 

 

SrcFFMod

000

000

SrcFFSOP

SrcFFEOP

SrcFFErr

SrcFFAlmostFull_n

SrcFFOverflow_n

Figure 4-25:Source FIFO Overflow Condition

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SPI-4.2 Lite v4.3 User Guide

 

 

UG181 June 27, 2008

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Xilinx UG181 manual Source Fifo Overflow, 24Source Fifo Almost-full Condition

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.