This page lists the CORE Generator™ cores and IP core versions that were removed from the 5.x release of the ISE® CORE Generator. Suggested replacements are indicated where available for discontinued cores.
Note:The suggested replacements may not be supported in older FPGA families.
| Basic Elements | Communications & Networking | |
| Memories & Storage Elements | Math Functions | |
| Digital Signal Processing | Video & Image Processing |
| Basic Elements | Suggested Replacement |
|---|---|
| Multiplexers | |
| Two Input Mux | Bit Multiplexer |
| Three Input Mux | Bit Multiplexer |
Four Input Mux |
Bit Multiplexer |
| Registers, Shifters & Pipelining | |
| Register | FD-based Parallel Register |
| Format Conversions | |
| Parallel-to-Serial Converter | No exact replacement, but consider: RAM-based Shift Register |
| Memories & Storage Elements | Suggested Replacement |
| Delay Elements | |
| Pipelined Delay Element | RAM-based Shift Register |
| Registered Dual Port RAM | Distributed Memory |
| FIFOs | |
| Synchronous FIFO v1.0 | Use latest version |
| RAMs & ROMs | |
| Registered Single Port RAM | Distributed Memory |
| Registered Dual Port RAM | Distributed Memory |
| Registered ROM | Distributed Memory |
| Synchronous RAM | Distributed Memory |
| Digital Signal Processing | Suggested Replacement |
| Building Blocks | |
| Symmetric 16 Deep Time-Skew Buffer | RAM-based Shift Register |
| Nonsymmetric 16 Deep Time-Skew Buffer | RAM-based Shift Register |
| Nonsymmetric 32 Deep Time-Skew Buffer | RAM-based Shift Register |
| Filters | |
| Serial Distributed Arithmetic (SDA) FIR Filter | DA FIR |
| Parallel Distributed Arithmetic (PDA) FIR Filter | DA FIR |
| Comb Filter | No exact replacement |
| Modulation | |
| Numerically Controlled Oscillator | Direct Digital Synthesizer |
| Dual-Channel Numerically Controlled Oscillator | Direct Digital Synthesizer |
| Communications & Networking | Suggested Replacement |
| None | N/A |
| Math Functions | Suggested Replacement |
| Accumulators | |
| Scaled-by-One-Half Accumulator | Accumulator |
| Adders & Subtractors | |
| Registered Subtracter | Adder Subtracter |
| Registered Serial Adder | Adder Subtracter |
| Registered Loadable Subtracter | Adder Subtracter |
| Registered Scaled Adder | Adder Subtracter |
| Registered Adder | Adder Subtracter |
| Registered Loadable Adder | Adder Subtracter |
| Arithmetic & Logic Units | |
| Sine Cosine Look Up Table | Use latest version |
| Dividers & Reciprocal Functions | Pipelined Divider v1.0 | Use latest version |
| Integrator | |
| Integrator | No exact replacement available |
| Complementer | |
| 1s and 2s Complement | Twos Complementer |
| Multipliers | |
| 8x8 Muliplier | Multiplier |
| 12x12 Multiplier | Multiplier |
| Parallel Multipliers - Area Optimized | Multiplier |
| Parallel Multipliers - Performance Optimized | Multiplier |
| Constant Coefficient Multiplier - Pipelined | Multiplier |
| Constant Coefficient Multiplier | Multiplier |
| Square Root | |
| Square Root | CORDIC - square root option |
| Video & Image Processing | Suggested Replacement |
| None | N/A |
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