Issues in FPGA Technologies
Complexity of Logic Element
- How many inputs/outputs for the logic element?
- Does the basic logic element contain a FF? What type?
Interconnect
- How fast is it? Does it offer ‘high speed’ paths that cross the chip? How many of these?
- Can I have on-chip tri-state busses?
- How routable is the design? If 95% of the logic elements are used, can I route the design?
- More routing means more routability, but less room for logic elements