Scan chain insertion with RC

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anssprasad

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I got the following report when I used report dft_setup command in RC after scan chain insertion.

test_mode:
object name: h_resetn
pin name: h_resetn
hookup_pin: h_resetn
hookup_polarity: non_inverted
active: high
ideal: false
user defined: false

My h_resetn signal is active low. I did not explicitly specify the reset control signal to the tool. In the above report it shows that the reset is active high. I am confused.
_________________
Thanks
Prasad
 

During test, presumably you don't want the reset to be asserted.

I.e. is it saying the active state of test_mode rather than reset?
 

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    anssprasad

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Hi Prasad,
I think default is -active high, If scan chain is stitched then it is fine. You can check the ATPG by constraining the reset as active LOW signal.

Thanks
C Santhosh Kumar
 

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    anssprasad

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