Xilinx Blocks

Xilinx LogiCORE

The block always uses the Xilinx LogiCORE: Binary Counter V5.0.

The Core datasheet can be found on your local disk at:

%XILINX%\coregen\ip\xilinx\eip1\com\xilinx\ip\baseblox_v5_0\do c\binary_counter.pdf

Delay

The Xilinx Delay block is a delay line (also called a shift register) of configurable length, allowing you to add latency to your design. Data presented at the input will appear at the output after a user specified number of sample periods.

The Delay block differs from the Register in that the Register allows only latency of 1, and contains an Initial Value parameter. The Delay block supports a user specified latency, but no initial value, other than zeroes.

Block Parameters Dialog Box

The block parameters dialog box can be invoked by double-clicking the icon in your Simulink model.

Figure 3-9: Delay block parameters dialog box

Parameters specific to this block are:

Initialize with Zeros: The block’s internal registers are set to zero if this option is selected, otherwise the output will be NaN (Not a Number) until the registers are flushed. For example, if the Delay block has a latency of 5 and this option is selected, the first five output values will be zeros. If this option is not selected, the first five output values will be NaN.

Latency: You may set the amount of latency in the Latency field.

Other parameters used by this block are explained in the Common Parameters section of the previous chapter.

The Delay block does not use a Xilinx LogiCORE, but is efficiently mapped to utilize the SRL16 feature of Xilinx devices.

Basic Elements

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Xilinx V2.1 manual Delay block parameters dialog box

V2.1 specifications

Xilinx V2.1 is a notable iteration in the series of versatile and robust Field-Programmable Gate Arrays (FPGAs) developed to cater to a wide range of applications. Launched to provide enhancements in performance and flexibility, V2.1 embodies sophisticated technologies and features that stand out in the electronics industry.

One of the primary features of Xilinx V2.1 is its improved processing power. The architecture has been optimized to support higher clock speeds and increased logic density, allowing for more complex designs to be implemented effectively. This boost in performance is facilitated by utilizing advanced silicon technologies, which significantly reduce power consumption while maximizing efficiency.

Another significant characteristic of Xilinx V2.1 is its enhanced I/O (Input/Output) capabilities. The device supports a variety of industry-standard interfaces, which include PCI Express, SATA, and various serial communication protocols. Such adaptability ensures seamless integration into existing systems, providing engineers with the flexibility to adapt to various application requirements without the need for substantial redesign efforts.

Xilinx V2.1 also features improved scalability, making it a prime choice for applications that demand diverse performance levels. This device supports an array of configurations and can be used in small-scale projects as well as in larger, more demanding environments requiring extensive resources. This scalability is further aided by support for multiple development platforms, enabling rapid prototyping and simplifying the design process.

Security is increasingly becoming a priority in digital design, and Xilinx V2.1 addresses this concern via hardware security features. It includes enhanced encryption protocols and secure boot functionalities, which help protect intellectual property and sensitive data from unauthorized access.

Additionally, the integration of advanced DSP (Digital Signal Processing) blocks allows Xilinx V2.1 to efficiently handle data-intensive tasks such as video processing and real-time signal analysis. These capabilities make it suitable for applications in telecommunications, automotive systems, and industrial automation.

Xilinx V2.1 also benefits from a rich development environment, including robust software tools that facilitate design entry, simulation, and verification. The support for industry-standard programming languages like VHDL and Verilog simplifies the development process, enabling engineers to design complex systems more efficiently.

In summary, Xilinx V2.1 stands out due to its impressive combination of high performance, flexibility, scalability, security, and comprehensive development support. These features make it a valuable asset for engineers and developers looking to innovate across various sectors, from telecommunications and automotive to industrial applications.