Intel FPGA Integer Arithmetic IP Cores User Guide

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Date 10/05/2020
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Document Table of Contents
Document Table of Contents x
1. Intel FPGA Integer Arithmetic IP Cores 2. LPM_COUNTER (Counter) IP Core 3. LPM_DIVIDE (Divider) Intel FPGA IP Core 4. LPM_MULT (Multiplier) IP Core 5. LPM_ADD_SUB (Adder/Subtractor) 6. LPM_COMPARE (Comparator) 7. ALTECC (Error Correction Code: Encoder/Decoder) IP Core 8. Intel FPGA Multiply Adder IP Core 9. ALTMEMMULT (Memory-based Constant Coefficient Multiplier) IP Core 10. ALTMULT_ACCUM (Multiply-Accumulate) IP Core 11. ALTMULT_ADD (Multiply-Adder) IP Core 12. ALTMULT_COMPLEX (Complex Multiplier) IP Core 13. ALTSQRT (Integer Square Root) IP Core 14. PARALLEL_ADD (Parallel Adder) IP Core 15. Integer Arithmetic IP Cores User Guide Document Archives 16. Document Revision History for Intel FPGA Integer Arithmetic IP Cores User Guide
2. LPM_COUNTER (Counter) IP Core x
2.1. Features 2.2. Verilog HDL Prototype 2.3. VHDL Component Declaration 2.4. VHDL LIBRARY_USE Declaration 2.5. Ports 2.6. Parameters
3. LPM_DIVIDE (Divider) Intel FPGA IP Core x
3.1. Features 3.2. Verilog HDL Prototype 3.3. VHDL Component Declaration 3.4. VHDL LIBRARY_USE Declaration 3.5. Ports 3.6. Parameters
4. LPM_MULT (Multiplier) IP Core x
4.1. Features 4.2. Verilog HDL Prototype 4.3. VHDL Component Declaration 4.4. VHDL LIBRARY_USE Declaration 4.5. Signals 4.6. Parameters for Stratix V, Arria V, Cyclone V, and Intel® Cyclone® 10 LP Devices 4.7. Parameters for Intel® Stratix® 10, Intel® Arria® 10, and Intel® Cyclone® 10 GX Devices
4.6. Parameters for Stratix V, Arria V, Cyclone V, and Intel® Cyclone® 10 LP Devices x
4.6.1. General Tab 4.6.2. General 2 Tab 4.6.3. Pipelining Tab
4.7. Parameters for Intel® Stratix® 10, Intel® Arria® 10, and Intel® Cyclone® 10 GX Devices x
4.7.1. General Tab 4.7.2. General 2 Tab 4.7.3. Pipelining
5. LPM_ADD_SUB (Adder/Subtractor) x
5.1. Features 5.2. Verilog HDL Prototype 5.3. VHDL Component Declaration 5.4. VHDL LIBRARY_USE Declaration 5.5. Ports 5.6. Parameters
6. LPM_COMPARE (Comparator) x
6.1. Features 6.2. Verilog HDL Prototype 6.3. VHDL Component Declaration 6.4. VHDL LIBRARY_USE Declaration 6.5. Ports 6.6. Parameters
7. ALTECC (Error Correction Code: Encoder/Decoder) IP Core x
7.1. ALTECC Encoder Features 7.2. Verilog HDL Prototype (ALTECC_ENCODER) 7.3. Verilog HDL Prototype (ALTECC_DECODER) 7.4. VHDL Component Declaration (ALTECC_ENCODER) 7.5. VHDL Component Declaration (ALTECC_DECODER) 7.6. VHDL LIBRARY_USE Declaration 7.7. Encoder Ports 7.8. Decoder Ports 7.9. Encoder Parameters 7.10. Decoder Parameters
8. Intel FPGA Multiply Adder IP Core x
8.1. Features 8.2. Verilog HDL Prototype 8.3. VHDL Component Declaration 8.4. VHDL LIBRARY_USE Declaration 8.5. Signals 8.6. Parameters
8.1. Features x
8.1.1. Pre-adder 8.1.2. Systolic Delay Register 8.1.3. Pre-load Constant 8.1.4. Double Accumulator
8.1.1. Pre-adder x
8.1.1.1. Pre-adder Simple Mode 8.1.1.2. Pre-adder Coefficient Mode 8.1.1.3. Pre-adder Input Mode 8.1.1.4. Pre-adder Square Mode 8.1.1.5. Pre-adder Constant Mode
8.6. Parameters x
8.6.1. General Tab 8.6.2. Extra Modes Tab 8.6.3. Multipliers Tab 8.6.4. Preadder Tab 8.6.5. Accumulator Tab 8.6.6. Systolic/Chainout Tab 8.6.7. Pipelining Tab
9. ALTMEMMULT (Memory-based Constant Coefficient Multiplier) IP Core x
9.1. Features 9.2. Verilog HDL Prototype 9.3. VHDL Component Declaration 9.4. Ports 9.5. Parameters
10. ALTMULT_ACCUM (Multiply-Accumulate) IP Core x
10.1. Features 10.2. Verilog HDL Prototype 10.3. VHDL Component Declaration 10.4. VHDL LIBRARY_USE Declaration 10.5. Ports 10.6. Parameters
11. ALTMULT_ADD (Multiply-Adder) IP Core x
11.1. Features 11.2. Verilog HDL Prototype 11.3. VHDL Component Declaration 11.4. VHDL LIBRARY_USE Declaration 11.5. Ports 11.6. Parameters
12. ALTMULT_COMPLEX (Complex Multiplier) IP Core x
12.1. Complex Multiplication 12.2. Canonical Representation 12.3. Conventional Representation 12.4. Features 12.5. Verilog HDL Prototype 12.6. VHDL Component Declaration 12.7. VHDL LIBRARY_USE Declaration 12.8. Signals 12.9. Parameters
13. ALTSQRT (Integer Square Root) IP Core x
13.1. Features 13.2. Verilog HDL Prototype 13.3. VHDL Component Declaration 13.4. VHDL LIBRARY_USE Declaration 13.5. Ports 13.6. Parameters
14. PARALLEL_ADD (Parallel Adder) IP Core x
14.1. Feature 14.2. Verilog HDL Prototype 14.3. VHDL Component Declaration 14.4. VHDL LIBRARY_USE Declaration 14.5. Ports 14.6. Parameters
1. Intel FPGA Integer Arithmetic IP Cores
2. LPM_COUNTER (Counter) IP Core
3. LPM_DIVIDE (Divider) Intel FPGA IP Core
4. LPM_MULT (Multiplier) IP Core
5. LPM_ADD_SUB (Adder/Subtractor)
6. LPM_COMPARE (Comparator)
7. ALTECC (Error Correction Code: Encoder/Decoder) IP Core
8. Intel FPGA Multiply Adder IP Core
9. ALTMEMMULT (Memory-based Constant Coefficient Multiplier) IP Core
10. ALTMULT_ACCUM (Multiply-Accumulate) IP Core
11. ALTMULT_ADD (Multiply-Adder) IP Core
12. ALTMULT_COMPLEX (Complex Multiplier) IP Core
13. ALTSQRT (Integer Square Root) IP Core
14. PARALLEL_ADD (Parallel Adder) IP Core
15. Integer Arithmetic IP Cores User Guide Document Archives
16. Document Revision History for Intel FPGA Integer Arithmetic IP Cores User Guide

8.6.3. Multipliers Tab

Table 32.  Multipliers Tab
Parameter IP Generated Parameter Value Default Value Description
What is the representation format for Multipliers A inputs? gui_representation_a

SIGNED,

UNSIGNED,

VARIABLE

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

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? gui_register_signa_clock

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? gui_register_signa_aclr

NONE

ACLR0

ACLR1

NONE Specifies the asynchronous clear source for the signa register.

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

What is the source for synchronous clear input? gui_register_signa_sclr

NONE

SCLR0

SCLR1

NONE Specifies the synchronous clear source for the signa register.

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

What is the representation format for Multipliers B inputs? gui_representation_b

SIGNED,

UNSIGNED,

VARIABLE

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

On

Off

 Off Select 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? gui_register_signb_clock

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? gui_register_signb_aclr

NONE

ACLR0

ACLR1

NONE Specifies the asynchronous clear source for the signb register.

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

What is the source for synchronous clear input? gui_register_signb_sclr

NONE

SCLR0

SCLR1

NONE Specifies the synchronous clear source for the signb register.

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

Input Configuration
Register input A of the multiplier gui_input_register_a

On

Off

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

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? gui_input_register_a_aclr

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.

What is the source for synchronous clear input? gui_input_register_a_sclr

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.

Register input B of the multiplier gui_input_register_b

On

Off

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

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? gui_input_register_b_aclr

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.

What is the source for synchronous clear input? gui_input_register_b_sclr

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.

What is the input A of the multiplier connected to? gui_multiplier_a_input

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 gui_scanouta_register

On

Off

 Off Select 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? gui_scanouta_register_clock

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? gui_scanouta_register_aclr

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.

What is the source for synchronous clear input? gui_scanouta_register_sclr

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.

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