[SI-LIST] Re: simulation tool frequency setup

  • From: "Ingraham, Andrew" <Andrew.Ingraham@xxxxxx>
  • To: <wendy118@xxxxxxxxxxxxxx>
  • Date: Fri, 16 Aug 2002 15:18:17 -0400

I'm not familiar with the particulars for this case ... but it sounds
like you ought to use a 133MHz frequency clock for the strobe, and
133MHz for the data as well, which would simulate the case with
alternating 1's and 0's.  The data changes at a 266MHz bit rate (266
Mbit/sec), so the fastest it can switch looks like a 133MHz square wave
(one high and one low bit per 133MHz cycle).

However, alternating 1's and 0's is just one case, and real data doesn't
do that for long.  Also try patterns like 11001100 (66MHz square wave),
1110111, etc.

Regards,
Andy



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