sdram
http://www.cnblogs.com/yuphone/archive/2010/05/15/1736406.html
http://www.cnblogs.com/qiweiwang/archive/2011/03/20/1989537.html
http://www.cnblogs.com/crazybingo/archive/2010/09/05/1818562.html
sdram的资料 比较全了
http://www.amobbs.com/forum.php?mod=viewthread&tid=3357172&highlight=sdram
讲到蛇形走向
http://www.amobbs.com/forum.php?mod=viewthread&tid=4457759&extra=&highlight=sdram&page=1
请教Altera SDR SDRAM控制器中位宽的定义(分享资料)
http://www.amobbs.com/forum.php?mod=viewthread&tid=4586284&highlight=sdram
相位偏移100Mhz sdram_ext_clk -75deghy57v641620ftp-7