Flipflop setup hold

Explain the main timing parameters of a flip-flop, such as Tcq, Tpd, Tsetup, and Thold,skew.

Draw two flip-flops connected in series and derive the timing constraints for Tsetup and Thold.

Are Tcq and Tpd the same as the timing constraints for setup and hold? Explain the difference and how Tcq and Tpd contribute to setup and hold timing.