A newer version of this document is available. Customers should click here to go to the newest version.
                
                    
                    
                        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
                    
                
            
        
                        
                        
                            
                            
                                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
                            
                        
                    
                4.7.1. General Tab
| Parameter | Value | Default Value | Description | 
|---|---|---|---|
| Multiplier Configuration | |||
| Type |   Multiply 'dataa' input by 'datab' input Multiply 'dataa' input by itself (squaring operation)  |  
      Multiply 'dataa' input by 'datab' input | Select the desired configuration for the multiplier. | 
| Data Port Widths | |||
| Dataa width | 1 - 256 bits | 8 bits | Specify the width of the dataa[] port. | 
| Datab width | 1 - 256 bits | 8 bits | Specify the width of the datab[] port. | 
| How should the width of the 'result' output be determined? | |||
| Type |   Automatically calculate the width Restrict the width  |  
      Automatically calculate the width | Select the desired method to determine the width of the result[] port. | 
| Value | 1 - 512 bits | 16 bits | Specify the width of the result[] port.  This value will only be effective if you select Restrict the width in the Type parameter.  |  
     
| Result width | 1 - 512 bits | — | Displays the effective width of the result[] port. |