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Des/Clust/Port
Wire Load Model
Library
------------------------------------------------
command_reg
smic18_wl20
slow
Point
Incr
Path
-----------------------------------------------------------
input external delay
0.000000
0.000000 r
command[0] (in)
4.255478
4.255478 r
C7335/Z (GTECH_OR2)
0.000000
4.255478 r
I_9/Z (GTECH_NOT)
0.000000
4.255478 f
C10486/Z (GTECH_OR2)
0.000000
4.255478 f
I_118/Z (GTECH_NOT)
0.000000
4.255478 r
C9593/Z_0 (*SELECT_OP_2.1_2.1_1)
0.000000
4.255478 r
TRext (out)
0.000001
4.255479 r
data arrival time
4.255479
-----------------------------------------------------------
(Path is unconstrained)
这是report,不明白为什么说"Path is unconstrained",且该路径的start point是command[11:0]这是个input port,end point是TRext这是个output port.还有这条path是组合逻辑,是不是和这有关,该怎样解决呢?请各位路过的大虾帮帮忙,多谢谢~~ |