Shifted Capture Window

To shift the capture window you use a constraint for the clock setup. The hold is still one clock cycle before the capture clock edge; the software assumes the hold is 0. Therefore, the window is still one clock cycle.

Figure 1. Setup Constraint Shifts the Capture Window

The constraints that represent this example are:

set_multicycle_path -setup -from a -to b 2
set_multicycle_path -hold -from a -to b 0