HI, I just learn to use DC to do the layout for my RTL digital circuits recently, but I find the area of net in reports is really large. Is there some hint to decrease it?
well, I just intergrate the similar conbination logic into one logic and reduce the Combinational area, so the Net Interconnect area decrease. I don't know if I say it clearly. For instance,I implement logic in different 'case', now all of them can be intergrated into one.
I don't think you should read too much on what DC reports as interconnect area. This number is largely exaggerated and not correct. If you want a better estimate of the wire area, you should get it from ASTRO or IC Compiler. I have many times got ridiculously large interconnect numbers from DC and a completely smaller number from their layout tools. So, I say ignore DC when it comes to interconnect estimates.