User guide
Table Of Contents
- Return to Menu
- System Generator for DSP
- Table of Contents
- About This Guide
- Introduction
- Installation
- Release Information
- Getting Started
- Introduction
- Lesson 1 - Design Creation Basics
- The System Generator Design Flow
- The Xilinx DSP Blockset
- Defining the FPGA Boundary
- Adding the System Generator Token
- Creating the DSP Design
- Generating the HDL Code
- Model-Based Design using System Generator
- Creating Input Vectors using MATLAB
- Lesson 1 Summary
- Lab Exercise: Using Simulink
- Lab Exercise: Getting Started with System Generator
- Lesson 2 - Fixed Point and Bit Operations
- Lesson 3 - System Control
- Lesson 4 - Multi-Rate Systems
- Lesson 5 - Using Memories
- Lesson 6 - Designing Filters
- Additional Examples and Tutorials
- Index
60 www.xilinx.com System Generator for DSP Getting Started Guide
UG639 (v 12.2) July 23, 2010
Chapter 4: Getting Started
Slice Block
The Slice block is used to access individual bits of a quantized number. This block provides several mechanisms by
which the sequence of bits can be specified. If the input type is known at the time of parameterization, the various
mechanisms do not offer any gain in functionality. If, however, a Slice block is used in a design where the input data
width or binary point position are subject to change, the variety of mechanisms becomes useful. For example, the
block can be configured to always extract only the top bit of the input, or only the integer bits, or only the first three
fractional bits.