Take a closer look assume the and gate internal delay is 0.2ns Look at the delay matrix What is it means Delay matrix Simple Arithmetic Calculation For Signal b 11.1ns (Trace delay of b)+ ANd gate internal delay =8.Ins (Trace delay of b)+. 2ns=8.1 (Trace delay of b)=7.9ns For Signal a (Trace delay of a)+ AND gate internal delay =11. Ins (Trace delay of a)+0.2ns=11.1 (Trace delay of a)=10.9ns stop List Paths bBRA Copyright 1997 Altera Corporation 9/12/97Copyright © 1997 Altera Corporation 9/12/97 Take a closer look Look at the Delay Matrix What is it means ? Assume the AND gate internal delay is 0.2ns Simple Arithmetic Calculation For Signal b : (Trace delay of b) + AND gate internal delay = 8.1ns (Trace delay of b) + 0.2ns = 8.1ns (Trace delay of b) = 7.9ns For Signal a : (Trace delay of a) + AND gate internal delay = 11.1ns (Trace delay of a) + 0.2ns = 11.1ns (Trace delay of a) = 10.9ns