CDF Routing Results
- shifty switch block similar to Wilton, but commutative
- cdf-design switch block designed to have maximum diversity
- shifty outperforms cdf-design !!
- is diversity worthwhile?
|
Normalized Results
4-input LUTs,
6 LUTs per cluster
| Switch Block |
Checkerboard |
Min Chan.
Width |
Area |
Delay |
| no checkerboard |
| disjoint |
no |
1.0 |
1.0 |
1.0 |
| shifty |
no |
0.966 |
0.983 |
0.986 |
| cdf-design |
no |
0.987 |
0.993 |
1.057 |
| checkerboard layout |
| disjoint |
yes |
0.994 |
0.995 |
1.003 |
| shifty |
yes |
0.966 |
0.983 |
1.022 |
| cdf-design |
yes |
0.990 |
0.994 |
1.018 |
|