R

M

macro

A macro is a component made of nets and primitives, flip-flops, or latches that implements high-level functions, such as adders, subtracters, and dividers. Soft macros and Relationally Placed Macros (RPMs) are types of macros.

macrocell

A macrocell is the CPLD logic cell, which is made of gates only. A macrocell can implement both combinational and registered equations. High-density function block macrocells also contain an arithmetic logic unit (ALU) for implementing arithmetic functions.

mapping

Mapping is the process of assigning a design’s logic elements to the specific physical elements that actually implement logic functions in a device.

MCS-86 (Intel)

MCS-86 (Intel) is a PROM format supported by the Xilinx tools. Its maximum address is 1 048 576. This format supports PROM files of up to (8 x 1 048 576) = 8 388 608 bits.

microprocessor

A silicon chip that contains a CPU. Microprocessors control the logic of almost all digital devices, e.g. PCs, workstations, clock radios, and fuel-injection systems for automobiles.

modular design

Modular design refers to the parallel development of pieces, or “modules,” of a design being independently worked on and then later merged into one FPGA design.

MSB

The Most Significant Bit (MSB) is the right-most bit of the bus bounds or indexes. In one-hot binary and twos-complement encoding, the MSB is the left-most bit.

MultiLINX

A cable designed to function as a download, read back, verification and logic probing tool for the larger Xilinx devices. MultiLINX functions as a USB device to send and receive data from host.

multiplexer

A multiplexer is a reprogrammable routing control. This component selects one input wire as output from a selection of wires.

Development System Reference Guide

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Xilinx 8.2i manual Msb

8.2i specifications

Xilinx 8.2i is a significant version of the Xilinx ISE (Integrated Software Environment) that emerged in the early 2000s, marking an important milestone in the world of FPGA (Field-Programmable Gate Array) development. This version introduced a slew of advanced features, technologies, and characteristics that made it an indispensable tool for engineers and developers in designing, simulating, and implementing digital circuits.

One of the standout features of Xilinx 8.2i is its enhanced design entry capabilities. This version supports multiple design entry methods, including schematic entry, VHDL, and Verilog HDL, giving engineers the flexibility to choose their preferred approach. The integrated environment provides user-friendly graphical interfaces, making it accessible for both novice and experienced users.

Xilinx 8.2i's synthesis tools have been improved to enable more efficient design compilation and optimization. The new algorithms used in this version facilitate faster synthesis times while reducing power consumption and improving performance. Furthermore, it features support for advanced FPGA architectures, which allows for the implementation of more complex designs with greater efficiency.

The implementation tools in Xilinx 8.2i include advanced place and route capabilities, utilizing state-of-the-art algorithms for optimized resource usage. These tools enable designers to make better use of FPGA resources, ensuring that designs fit within the constraints of the target device while maximizing performance.

Another key characteristic of Xilinx 8.2i is its extensive support for various Xilinx devices such as the Spartan, Virtex, and CoolRunner series. This compatibility ensures that developers can leverage the powerful features of these FPGA families, including high-speed transceivers and DSP slices.

Xilinx 8.2i also places a strong emphasis on simulation and verification. The version integrates with various simulation tools, allowing for thorough testing of the designs before implementation. This reduces the risk of errors and ensures that the final product meets specifications.

In addition, this version includes support for design constraints, enabling engineers to specify timing, area, and other critical design parameters. By accommodating constraints, Xilinx 8.2i helps in achieving reliable and efficient designs tailored to project needs.

In summary, Xilinx 8.2i is a robust software development tool that enhances the design process for FPGAs. Its comprehensive features, including multiple design entry options, advanced synthesis and implementation tools, extensive device support, and strong simulation capabilities, make it a valuable resource for engineers and developers striving for innovation in digital design.