who can define Mulitple Clock Domain (MCD)

[kingming]

I heard many cases mentioning MCD. Who can give me a clear and accurate definition about it? Thanks.

[Apoptosis]

you mean like on Phenom processors where different areas are driven by different clock signals and you can customize some values?

AMD's Phenom has 5 clock domains, one for each core and then there is the one for the L3 cache.