AR# 10255: 3.1i Virtex PAR - Long PWR/GND runtimes have been seen for Virtex designs.
3.1i Virtex PAR - Long PWR/GND runtimes have been seen for Virtex designs.
Keywords: Virtex, router, routing, PWR, GND, VCC, runtime, slow, long
General Description: Despite improvements provided in previous service packs, some designs still exhibit slow PWR/GND routing performance using 3.1i. Service Pack 4 contains further improvements that address these issues.