Which synchronizers to use for real time clock?

[ankit_sharma285]

I am designing Real time clock.
In my implementation, I require to use synchronizers. I have to transfer data between 32 MHz block and 100MHz block.

Which synchronizer should I use? Double or Toggle.
If you have any Pdf regarding the subject, please refer me the material.

 

[sheikmydeen]

Basically 2 stage synchronizer is enough..