Verilog编写的采集PCM1750串行输出的代码（测试通过）

DS255 March 1, 2011 www.xilinx.com 1

Product Specification

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Introduction

The Xilinx LogiCORE™ IP Multiplier implements

Spartan-3A/3AN/3A DSP/XA FPGAs

• Generates fixed-point parallel multipliers and

constant-coefficient multipliers for two’s

complement signed or unsigned data

• Supports inputs ranging from 1 to 64 bits wide and

portion of the full product selectable

• Configurable latency for all multiplier variants

• Resource estimation in the Xilinx CORE

DS255 March 1, 2011 Product Specification

Core Specifics

Support

Provided by Xilinx, Inc.

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Product Specification

LogiCORE IP Multiplier v11.2

Overview

Important: Multiplier v11.2 is not backward compatible with version 8.0 (and earlier) of the Multiplier core.

See Performance and Resource Utilization for more information.

Pinout

Figure 1 and Table 1 illustrate and define the schematic symbol signal names. All control inputs are active high.

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Product Specification

LogiCORE IP Multiplier v11.2

The Multiplier core GUI has several pages with fields to set parameter values for the particular instantiation

• Component Name: The name of the core component to be instantiated. The name must begin with a letter and

be composed of the following characters: a to z, 0 to 9, and “_”.

• Multiplier Type: Select between parallel and constant-coefficient multiplier options.

• Input Options: Select the required operand widths and whether the operands represent two’s complement

signed or unsigned data.

• Parallel Multiplier Options: These options are visible only when the multiplier type chosen is Parallel

• Multiplier Construction: Allows the choice of LUTs or dedicated multiplier primitives to be selected for

• Constant-Coefficient Multiplier Options: These options are visible only when the multiplier type chosen is

Constant-Coefficient Multiplier.

• Coefficient: Enter the integer value of the coefficient within the limits of the range shown. Positive and

• Use Symmetric Rounding: For XtremeDSP slice-based parallel multipliers, the product can be

• Pipeline Stages: Select the level of pipelining for the multiplier instance. The label on the right provides

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Product Specification

LogiCORE IP Multiplier v11.2