No It doesnot affect the setup and hold time of the flop. The gated clock is actually used for power saving but the output of the clock is also a clock .
en.clk is the output of the gated clock . The clock that is actually fed to the block is en.clk. When en is high i,e when the clock to the block has to be fed or when the block is enabled then the clock is propagated to the block else when en is 0 then it is not.
So the poing that i want to make is that the clock property remains the same so is the setup and hold time of the flops.
I hope it helps
Added after 42 seconds:
No It doesnot affect the setup and hold time of the flop. The gated clock is actually used for power saving but the output of the clock is also a clock .
en.clk is the output of the gated clock . The clock that is actually fed to the block is en.clk. When en is high i,e when the clock to the block has to be fed or when the block is enabled then the clock is propagated to the block else when en is 0 then it is not.
So the poing that i want to make is that the clock property remains the same so is the setup and hold time of the flops.