mhdft
Newbie level 2
I tried to find an answer to my question, but no threads seem to have the complete answer.
So, here is the question:
Assume that we have the following cases:
CLK1+ : Posedge CLK1 scan flop
CLK1- : Negedge CLK1 scan flop
CLK2+ : Posedge CLK2 scan flop
CLK2- : Negedge CLK2 scan flop
Which of the following scan chain connection cases requires a lock-up latch and why?
CLK1+ ---> CLK2+
CLK1+ ---> CLK2-
CLK1- ---> CLK2+
CLK1- ---> CLK2-
Thanks!
So, here is the question:
Assume that we have the following cases:
CLK1+ : Posedge CLK1 scan flop
CLK1- : Negedge CLK1 scan flop
CLK2+ : Posedge CLK2 scan flop
CLK2- : Negedge CLK2 scan flop
Which of the following scan chain connection cases requires a lock-up latch and why?
CLK1+ ---> CLK2+
CLK1+ ---> CLK2-
CLK1- ---> CLK2+
CLK1- ---> CLK2-
Thanks!