Research Article
IP-Enabled C/C++ Based High Level Synthesis: A Step towards Better Designer Productivity and Design Performance
Table 13
Representative characterization data for CORDIC configured for sqrt().
| | Configurable parameter (attribute) | Attribute value (for 32 bit unsigned integer) (XC4VFX12FF668-10) |
| | Pipelining mode | No pipelining | | Round mode | Truncate | RPI | RPNI | RNE | | Latency attained | 2 | 2 | 2 | 2 | | Fmax obtained (MHz) (ns) | 45.535 (21.961) | 37.038 (26.999) | 37.038 (26.999) | 33.357 (29.979) | | LUT/FF | 327/27 | 375/27 | 375/27 | 416/27 | | Pipelining mode | Optimal | | Round mode | Truncate | RPI | RPNI | RNE | | Latency attained | 10 | 10 | 10 | 11 | | Fmax obtained (MHz) (ns) | 147.558 (6.777) | 149.298 (6.698) | 149.298 (6.698) | 149.365 (6.695) | | LUT/FF | 351/201 | 399/227 | 399/227 | 440/239 | | Pipelining mode | Maximum | | Round mode | Truncate | RPI | RPNI | RNE | | Latency attained | 17 | 18 | 18 | 19 | | Fmax obtained (MHz) (ns) | 280.426 (3.566) | 264.131 (3.786) | 264.131 (3.786) | 263.227 (3.799) | | LUT/FF | 358/363 | 403/380 | 403/380 | 444/419 |
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