Why we give tester timing parameter during scan synthesis with DC?

[megastar007]

Can any one explain clearly why we give tester timing parameter during scan synthesis with DC(DFT compiler) like


set test_default_period xxx
set test_default_delay xxx
set test_default_bidir_delay xxx

etc

 

[dft_guy]

Re: DFT

DFT Compiler can write out a test protocol file that can be used directly by TetraMAX. Theat's the main reason, I believe...

John
DFT Digest

 

[shiv_emf]

DFT

i hav not given this though !! i think these r variables which r defined in root .synopsys.setup_dc

check that out!!