Nov 29, 2012 #1 Z zhwa0013 Newbie level 3 Joined Nov 29, 2012 Messages 4 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,304 How to drive tie hi/lo pins? Why we need tie hi/lo cell? What's the difference between a clock tree and the tie hi/lo tree?
How to drive tie hi/lo pins? Why we need tie hi/lo cell? What's the difference between a clock tree and the tie hi/lo tree?
Nov 29, 2012 #2 M mail4idle2 Full Member level 4 Joined Oct 20, 2012 Messages 200 Helped 20 Reputation 40 Reaction score 19 Trophy points 1,298 Activity points 2,173 There is no comparision between ti hi/lo and clock tree. Clock tree is expansion of clock. Driving ti hi/lo cells : It does not need any inputs. it gives output high and low depending on tie high and tie low cell respectively.
There is no comparision between ti hi/lo and clock tree. Clock tree is expansion of clock. Driving ti hi/lo cells : It does not need any inputs. it gives output high and low depending on tie high and tie low cell respectively.
Nov 29, 2012 #3 R rca Advanced Member level 5 Joined May 20, 2010 Messages 1,527 Helped 355 Reputation 710 Reaction score 336 Trophy points 1,363 Location Marin Activity points 8,773 The fanout of tie cells are usually controllable. Some ERC rules would not have direct vdd or vss connected to std cell inputs.
The fanout of tie cells are usually controllable. Some ERC rules would not have direct vdd or vss connected to std cell inputs.