| Features/Data Format | Standard Sample Rate | Super Sample Rate | ||||
|---|---|---|---|---|---|---|
| Fixed Point | Floating-Point (Pseudo) | Floating-Point (Native) | Fixed-Point | Floating-Point (Pseudo) | Floating-Point (Native) | |
| Architecture Support | All | All | None | Pipelined Streaming I/O | None | Pipelined Streaming I/O |
| SSR Support | 1 | 1 | - | 2, 4, 8, 16, 32, 64 | - | 2, 4, 8, 16, 32, 64 |
| Transform Length | 8-65536 | 8-65536 | - | SSR
1
= 2, 4, 8: 8-65536 SSR = 16: 16-65536 SSR = 32: 32-2048 SSR = 64: 64-1024 |
- | SSR
1
= 2, 4, 8: 8-65536 SSR = 16: 16-65536 SSR = 32: 32-2048 SSR = 64: 64-1024 |
| Input Data Width (bits) | 8-34 | 32 | - | 8-16 | - | 32 |
| Phase Factor Width (bits) | 8-34 | 24-25 | - | 19 | - | 32 |
| Input Data Ordering | Natural or Bit-Reversed | Natural or Bit-Reversed | - | Natural | - | Natural |
| Output Data Ordering | Natural or Bit-Reversed | Natural or Bit-Reversed | - | Natural | - | Natural |
| Multi-channel Support | ✓ (1-12 channels) |
✓ (1-12 channels) |
- | x | - | x |
| Scaling Options | Unscaled Scaled Block Floating-Point |
Internal normalization | - | Conservative (fixed) | - | Internal normalization |
| Runtime Configurable Transform | ✓ | ✓ | - | x | - | x |
| Runtime FWD/INV Control | ✓ | ✓ | - | x Design-time only |
- | x Design-time only |
| Cycle Prefix Insertion | ✓ (with Natural Order) |
✓ (with Natural Order) |
- | x | - | x |
| Overflow Detection | ✓ (scaled mode) | ✓ (exponent overflow) | - | x | - | x |
| Rounding Options | Truncation or Convergent | Truncation or Convergent | - | Round-towards-infinity | - | x |
|
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