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2
votes
1answer
40 views

power down some but not all DDR on a bus? And I'm thinking of DDR3/3L and DDR2.

I'm starting to learn about power managment, and am wondering, can you power off a DDR module on a memory bus while others are still in use? Or does that mangle signal integrity on the bus? I assume ...
5
votes
3answers
282 views

DDR1 Layout Considerations - DOs and DONTs

I am novice to high speed design. Before getting in to DDR, I recently learned about impedance matching and how it is done, likewise I learned about length matching and how it is done.(Baby steps ...