Intel® Stratix® 10 Variable Precision DSP Blocks User Guide

Download PDF
ID 683832
Date 8/13/2021
Public
Document Table of Contents
Document Table of Contents x
1. Intel® Stratix® 10 Variable Precision DSP Blocks Overview 2. Block Architecture Overview 3. Operational Mode Descriptions 4. Design Considerations 5. Intel® Stratix® 10 Variable Precision DSP Blocks Implementation Guide 6. Native Fixed Point DSP Intel® Stratix® 10 FPGA IP Core References 7. Multiply Adder IP Core References 8. ALTMULT_COMPLEX Intel® FPGA IP Core Reference 9. LPM_MULT Intel® FPGA IP Core References 10. Native Floating Point DSP Intel® Stratix® 10 FPGA IP References 11. LPM_DIVIDE (Divider) Intel FPGA IP Core 12. Intel® Stratix® 10 Variable Precision DSP Blocks User Guide Document Archives 13. Document Revision History for the Intel® Stratix® 10 Variable Precision DSP Blocks User Guide
1. Intel® Stratix® 10 Variable Precision DSP Blocks Overview x
1.1. Features 1.2. Supported Operational Modes in Intel® Stratix® 10 Devices 1.3. Resources
2. Block Architecture Overview x
2.1. Input Register Bank for Fixed-Point and Floating-Point Arithmetic 2.2. Pipeline Registers for Fixed-Point and Floating-Point Arithmetic 2.3. Pre-adder for Fixed-Point Arithmetic 2.4. Internal Coefficient for Fixed-Point Arithmetic 2.5. Multipliers for Fixed-Point and Floating-Point Arithmetic 2.6. Adder or Subtractor for Fixed-Point and Floating-Point Arithmetic 2.7. Accumulator, Chainout Adder, and Preload Constant for Fixed-Point Arithmetic 2.8. Systolic Register for Fixed-Point Arithmetic 2.9. Double Accumulation Register for Fixed-Point Arithmetic 2.10. Output Register Bank for Fixed-Point and Floating-Point Arithmetic 2.11. Exception Handling for Floating-Point Arithmetic
3. Operational Mode Descriptions x
3.1. Operational Modes for Fixed-Point Arithmetic 3.2. Operational Modes for Floating-Point Arithmetic
3.1. Operational Modes for Fixed-Point Arithmetic x
3.1.1. Independent Multiplier Mode 3.1.2. Multiplier Adder Sum Mode 3.1.3. Independent Complex Multiplier 3.1.4. 18 × 19 Multiplication Summed with 36-Bit Input Mode 3.1.5. Systolic FIR Mode
3.1.1. Independent Multiplier Mode x
3.1.1.1. 18 × 18 or 18 × 19 Independent Multiplier 3.1.1.2. 27 × 27 Independent Multiplier
3.1.5. Systolic FIR Mode x
3.1.5.1. Mapping Systolic Mode User View to Variable Precision Block Architecture View 3.1.5.2. 18-bit Systolic FIR Mode 3.1.5.3. 27-Bit Systolic FIR Mode
3.2. Operational Modes for Floating-Point Arithmetic x
3.2.1. Single Floating-Point Arithmetic Functions 3.2.2. Multiple Floating-Point Arithmetic Functions
3.2.1. Single Floating-Point Arithmetic Functions x
3.2.1.1. Multiplication Mode 3.2.1.2. Adder or Subtract Mode 3.2.1.3. Multiply Accumulate Mode
3.2.2. Multiple Floating-Point Arithmetic Functions x
3.2.2.1. Multiply-Add or Multiply-Subtract Mode 3.2.2.2. Vector One Mode 3.2.2.3. Vector Two Mode 3.2.2.4. Direct Vector Dot Product 3.2.2.5. Complex Multiplication
4. Design Considerations x
4.1. Internal Coefficient and Pre-Adder for Fixed-Point Arithmetic 4.2. Accumulator for Fixed-Point Arithmetic 4.3. Chainout Adder 4.4. Input Cascade for Fixed-Point Arithmetic 4.5. DSP Block Cascade Limit in Intel® Stratix® 10 Devices
5. Intel® Stratix® 10 Variable Precision DSP Blocks Implementation Guide x
5.1. 'X' Propagation Support in Simulation
6. Native Fixed Point DSP Intel® Stratix® 10 FPGA IP Core References x
6.1. Native Fixed Point DSP Intel® Stratix® 10 FPGA IP Release Information 6.2. Supported Operational Modes 6.3. Maximum Input Data Width for Fixed-Point Arithmetic 6.4. Parameterizing Native Fixed Point DSP IP Core 6.5. Signals
6.3. Maximum Input Data Width for Fixed-Point Arithmetic x
6.3.1. Using Less Than 36-Bit Operand In 18 x 18 Plus 36 Mode Example
6.4. Parameterizing Native Fixed Point DSP IP Core x
6.4.1. Native Fixed Point DSP Intel® Stratix® 10 FPGA IP Parameters
7. Multiply Adder IP Core References x
7.1. Multiply Adder Intel FPGA IP Release Information 7.2. Features 7.3. Parameters 7.4. Signals
7.2. Features x
7.2.1. Pre-adder 7.2.2. Systolic Delay Register 7.2.3. Pre-load Constant 7.2.4. Double Accumulator
7.2.1. Pre-adder x
7.2.1.1. Pre-adder Simple Mode 7.2.1.2. Pre-adder Coefficient Mode 7.2.1.3. Pre-adder Input Mode 7.2.1.4. Pre-adder Square Mode 7.2.1.5. Pre-adder Constant Mode
7.3. Parameters x
7.3.1. General Tab 7.3.2. Extra Modes 7.3.3. Multipliers Tab 7.3.4. Preadder Tab 7.3.5. Accumulator Tab 7.3.6. Systolic/Chainout Tab 7.3.7. Pipelining Tab
8. ALTMULT_COMPLEX Intel® FPGA IP Core Reference x
8.1. ALTMULT_COMPLEX Intel FPGA IP Release Information 8.2. Features 8.3. Complex Multiplication 8.4. Parameters 8.5. Signals
9. LPM_MULT Intel® FPGA IP Core References x
9.1. LPM_MULT Intel FPGA IP Release Information 9.2. Features 9.3. Parameters 9.4. Signals
9.3. Parameters x
9.3.1. General Tab 9.3.2. General 2 Tab 9.3.3. Pipelining Tab
10. Native Floating Point DSP Intel® Stratix® 10 FPGA IP References x
10.1. Native Floating Point DSP Intel® Stratix® 10 FPGA IP Release Information 10.2. Native Floating Point DSP Intel® Stratix® 10 FPGA IP Core Supported Operational Modes 10.3. Parameterizing the Native Floating Point DSP Intel® Stratix® 10 FPGA IP 10.4. Native Floating Point DSP Intel® Stratix® 10 FPGA IP Core Signals
10.3. Parameterizing the Native Floating Point DSP Intel® Stratix® 10 FPGA IP x
10.3.1. Native Floating Point DSP Intel® Stratix® 10 FPGA IP Parameters
11. LPM_DIVIDE (Divider) Intel FPGA IP Core x
11.1. LPM_DIVIDE Intel® FPGA IP Release Information 11.2. Features 11.3. Verilog HDL Prototype 11.4. VHDL Component Declaration 11.5. VHDL LIBRARY_USE Declaration 11.6. Ports 11.7. Parameters
11.7. Parameters x
11.7.1. General Tab 11.7.2. General1 Tab
1. Intel® Stratix® 10 Variable Precision DSP Blocks Overview
2. Block Architecture Overview
3. Operational Mode Descriptions
4. Design Considerations
5. Intel® Stratix® 10 Variable Precision DSP Blocks Implementation Guide
6. Native Fixed Point DSP Intel® Stratix® 10 FPGA IP Core References
7. Multiply Adder IP Core References
8. ALTMULT_COMPLEX Intel® FPGA IP Core Reference
9. LPM_MULT Intel® FPGA IP Core References
10. Native Floating Point DSP Intel® Stratix® 10 FPGA IP References
11. LPM_DIVIDE (Divider) Intel FPGA IP Core
12. Intel® Stratix® 10 Variable Precision DSP Blocks User Guide Document Archives
13. Document Revision History for the Intel® Stratix® 10 Variable Precision DSP Blocks User Guide

7.3.3. Multipliers Tab

Table 38.  Multipliers Tab
Parameter Value Default Value Description
What is the representation format for Multipliers A inputs?

SIGNED,

UNSIGNED,

VARIABLE

UNSIGNED Specify the representation format for the multiplier A input.
Register ‘signa’ input

On

Off

 Off Select this option to enable signa register.

You must select VARIABLE value for What is the representation format for Multipliers A inputs? parameter to enable this option.

What is the source for clock input?

Clock0

Clock1

Clock2

Clock0 Select Clock0 , Clock1 or Clock2 to enable and specify the input clock signal for signa register.

You must select Register ‘signa’ input to enable this parameter.

What is the source for asynchronous clear input?

NONE

ACLR0

ACLR1

NONE Specifies the asynchronous clear source for the signa register.

You must select Register ‘signa’ input to enable this parameter.

The IP core supports either asynchronous or synchronous clear but not both.

What is the source for synchronous clear input?

NONE

SCLR0

SCLR1

NONE Specifies the synchronous clear source for the signa register.

You must select Register ‘signa’ input to enable this parameter.

The IP core supports either asynchronous or synchronous clear but not both.

What is the representation format for Multipliers B inputs?

SIGNED,

UNSIGNED,

VARIABLE

UNSIGNED Specify the representation format for the multiplier B input.
Register ‘signb’ input

On

Off

 Off Turn on this option to enable signb register.

You must select VARIABLE value for What is the representation format for Multipliers B inputs? parameter to enable this option.

What is the source for clock input?

Clock0

Clock1

Clock2

Clock0 Select Clock0 , Clock1 or Clock2 to enable and specify the input clock signal for signb register.

You must select Register ‘signb’ input to enable this parameter.

What is the source for asynchronous clear input?

NONE

ACLR0

ACLR1

NONE Specifies the asynchronous clear source for the signb register.

You must select Register ‘signb’ input to enable this parameter.

The IP core supports either asynchronous or synchronous clear but not both.

What is the source for synchronous clear input?

NONE

SCLR0

SCLR1

NONE Specifies the synchronous clear source for the signb register.

You must select Register ‘signb’ input to enable this parameter.

The IP core supports either asynchronous or synchronous clear but not both.

Input Configuration
Register input A of the multiplier

On

Off

 Off Turn on this option to enable input register for dataa input bus.
What is the source for clock input?

Clock0

Clock1

Clock2

Clock0 Select Clock0 , Clock1 or Clock2 to enable and specify the register input clock signal for dataa input bus.

You must select Register input A of the multiplier to enable this parameter.

What is the source for asynchronous clear input?

NONE

ACLR0

ACLR1

NONE Specifies the register asynchronous clear source for the dataa input bus.

You must select Register input A of the multiplier to enable this parameter.

The IP core supports either asynchronous or synchronous clear but not both.

What is the source for synchronous clear input?

NONE

SCLR0

SCLR1

NONE Specifies the register synchronous clear source for the dataa input bus.

You must select Register input A of the multiplier to enable this parameter.

The IP core supports either asynchronous or synchronous clear but not both.

Register input B of the multiplier

On

Off

 Off Turn on this option to enable input register for datab input bus.
What is the source for clock input?

Clock0

Clock1

Clock2

Clock0 Select Clock0 , Clock1 or Clock2 to enable and specify the register input clock signal for datab input bus.

You must select Register input B of the multiplier to enable this parameter.

What is the source for asynchronous clear input?

NONE

ACLR0

ACLR1

NONE Specifies the register asynchronous clear source for the datab input bus.

You must select Register input B of the multiplier to enable this parameter.

The IP core supports either asynchronous or synchronous clear but not both.

What is the source for synchronous clear input?

NONE

SCLR0

SCLR1

NONE Specifies the register synchronous clear source for the datab input bus.

You must select Register input B of the multiplier to enable this parameter.

The IP core supports either asynchronous or synchronous clear but not both.

What is the input A of the multiplier connected to?

Multiplier input

Scan chain input

Multiplier input Select the input source for input A of the multiplier.

Select Multiplier input to use dataa input bus as the source to the multiplier.

Select Scan chain input to use scanin input bus as the source to the multiplier and enable the scanout output bus.

This parameter is available when you select 2, 3 or 4 for What is the number of multipliers? parameter.

Scanout A Register Configuration
Register output of the scan chain

On

Off

 Off Turn on this option to enable output register for scanouta output bus.

You must select Scan chain input for What is the input A of the multiplier connected to? parameter to enable this option.

What is the source for clock input?

Clock0

Clock1

Clock2

Clock0 Select Clock0 , Clock1 or Clock2 to enable and specify the register input clock signal for scanouta output bus.

You must turn on Register output of the scan chain parameter to enable this option.

What is the source for asynchronous clear input?

NONE

ACLR0

ACLR1

NONE Specifies the register asynchronous clear source for the scanouta output bus.

You must turn on Register output of the scan chain parameter to enable this option.

The IP core supports either asynchronous or synchronous clear but not both.

What is the source for synchronous clear input?

NONE

SCLR0

SCLR1

NONE Specifies the register synchronous clear source for the scanouta output bus.

You must select Register output of the scan chain parameter to enable this option.

The IP core supports either asynchronous or synchronous clear but not both.

Level Two Title