Digital System Projects Using HDL - Technical MCQs

Q1:

In the keypad application, just after the 4 ms mark the simulation imitates the release of the key by changing the column value back to F hex, which causes the d output to go into its Hi-Z state. On the next rising clock edge, what happens to dav?

A It goes HIGH.

B It goes LOW.

C It goes to Hi-Z.

D It goes to 1111H.

ANS:B - It goes LOW.

No answer description is available.