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Intel
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IXP43X Product Line of Network Processors—Hardware Design Guidelines
Intel
®
IXP43X Product Line of Network Processors
HDG April 2007
6 Document Number: 316844; Revision: 001US
29 DDR Clock Timings ...................................................................................................75
30 DDRII-400 MHz Interface -- Signal Timings..................................................................77
31 DDR II/I SDRAM Interface -- Signal Timings.................................................................78
32 Timing Relationships.................................................................................................79
33 Signal Package Lengths.............................................................................................79
34 Clock Signal Group Routing Guidelines ........................................................................82
35 DDRII Data and Control Signal Group Routing Guidelines...............................................83
36 DDRII Command Signal Group Routing Guidelines ........................................................84