[Arm-netbook] DDR3...

[Henrik Nordström]

tor 2012-01-05 klockan 22:49 +0000 skrev lkcl luke:
> whoooooooEE :)
> 
> http://www.micron.com/~/media/Documents/Products/Data%20Sheet/DRAM/4242Gb_DDR3_SDRAM.ashx
> 
> does aaaanybody find these paragraphs a tad scary?  memory controller
> sends out ping-queries to each RAM IC, works out the delay and then
> uses that in future read/writes.  aaaaah!

Well, the way I read it is that it's a automatic tuning process for
compensating small trace length mismatches, done as part of the early
memory initialization.

What is the problem?

Regards
Henrik