Intel® Arria® 10 Native Fixed Point DSP IP Core User Guide

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ID 683583
Date 3/13/2017
Public
Document Table of Contents
Document Table of Contents x
1. Intel® Arria® Native Fixed Point DSP IP Core User Guide 2. Getting Started 3. Functional Description A. Arria 10 Native Fixed Point DSP IP Core User Guide Document Archives B. Additional Information
1. Intel® Arria® Native Fixed Point DSP IP Core User Guide x
1.1. Arria 10 Native Fixed Point DSP IP Core Features
2. Getting Started x
2.1. Arria 10 Native Fixed Point DSP IP Core Parameter Settings
2.1. Arria 10 Native Fixed Point DSP IP Core Parameter Settings x
2.1.1. Operation Mode Tab 2.1.2. Pre-adder Tab 2.1.3. Internal Coefficient Tab 2.1.4. Accumulator/Output Cascade Tab 2.1.5. Pipelining Tab 2.1.6. Maximum Input Data Width Per Operation Mode
3. Functional Description x
3.1. Operational Modes 3.2. Optional Modules 3.3. Clocking Scheme 3.4. Arria 10 Native Fixed Point DSP IP Core Signals
3.1. Operational Modes x
3.1.1. The 18 × 18 Full Mode 3.1.2. The 18 × 18 Sum of 2 Mode 3.1.3. The 18 × 18 Plus 36 Mode 3.1.4. The 18 × 18 Systolic Mode 3.1.5. The 27 × 27 Mode
3.1.3. The 18 × 18 Plus 36 Mode x
3.1.3.1. Using Less Than 36-bit Operand In 18 × 18 Plus 36 Mode
3.2. Optional Modules x
3.2.1. Input Cascade 3.2.2. Pre-adder 3.2.3. Internal Coefficient 3.2.4. Accumulator and Output Cascade 3.2.5. Pipeline Register
B. Additional Information x
B.1. Arria 10 Native Fixed Point DSP IP Core Document Revision History
1. Intel® Arria® Native Fixed Point DSP IP Core User Guide
2. Getting Started
3. Functional Description
A. Arria 10 Native Fixed Point DSP IP Core User Guide Document Archives
B. Additional Information

3.1.3. The 18 × 18 Plus 36 Mode

When configured as 18 × 18 Plus 36 mode, the Arria 10 Native Fixed Point DSP IP core enables only the top multiplier. This mode applies the equation of resulta = (ax * ay) + az.
Figure 4. The 18 × 18 Plus 36 Mode Architecture

You must set Representation format for bottom multipliers y operand to unsigned when using this mode. When the input bus is less than 36-bit in this mode, you are required to provide the necessary signed extension to fill up the 36-bit input.


Section Content
Using Less Than 36-bit Operand In 18 × 18 Plus 36 Mode

Level Two Title