Does the MPC8270 double synchronize the input LGTA?

[brett_morehouse]

Direction is from the outside world going into the MPC8270.  This is asking what the 8270 does when the setup and hold time cannot be met, if it provides two series flip flops at the input, or not- perhaps to have less latency?  If the outside signal cannot make the setup time and presents an edge at the threshold point, will there simply be a one clock delay before the LGTA signal is seen, or will/might there be a metastability condition in the MPC8270?

Is there a list of inputs that are double synchronized?

[brett_morehouse]

Thanks, although I did already know that.  The most important part of the question is in the title:  Does the MPC8270 double synchronize the input LGTA?  I tried a 2nd time with this question in a separate post, and I think the answer is yes, though the way the answer was written I am not completely sure.

[r8070z]

The 8270 may not sample GTA signal pulse on edge where the setup and hold time are not met. If
GTA signal pulse is shifted right to the next edge with suitable setup and hold time then it is sampled on that edge.