prev FPGA 2002 next
Relaxed Buffer/Pass Schemes

Apply rules to buffered tracks (50% of total tracks) ...

  1. Replace wire midpoint buffers with:
    • buffers
    • pass transistors
    • alternating scheme 1 (alt1)
    • alternating scheme 2 (alt2)

  2. Replace wire endpoint buffers with:
    • buffers
    • pass transistors
    • alternating scheme 1 (alt1)
    • alternating scheme 2 (alt2)
    • other

Try all combinations of rules 1 and 2.

All should save area... but
lowest delay? lowest area*delay?