Clocking
8
8.1
Clocking
Intel 6400/6402 Advanced Memory Buffer (AMB)
Clock Domains
There are three main clock domains in the Intel 6400/6402 Advanced Memory Buffer
(AMB). The FBD (Fully-Buffered DIMM) link domain is a 12x multiple of the core clock.
The DDR data-rate domain is 2x the core clock. The core domain frequency equals the
DDR command-rate, and is a 2x multiple of the external reference clock. The ratio
between these domains remains fixed.The AMB logic in each domain is shown in
Intel® 6400/6402 Advanced Memory Buffer Datasheet
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INTEL [ INTEL CORPORATION ]
