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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
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14. PARALLEL_ADD (Parallel Adder) IP Core
The PARALLEL_ADD IP core performs add or subtract operations on a selected number of inputs to produce a single sum result. You can add or subtract more than two operands and automatically shift the input operands upon entering the function. The method of shifting input operands is useful for serial FIR filter structures requiring a shift-and-accumulate of the partial products.
The following figure shows the ports for the PARALLEL_ADD IP core.
Figure 29. PARALLEL_ADD Ports