Re: SJTP:Phantom sync headers
Pat,
I was hoping we could count on you for a proof as to
why this wasn't a big concern :)
Thanks,
Ben
pat_thaler@xxxxxxxxxxx wrote:
>
> Ben and Jonathan,
>
> As long as the pattern is being generated by setting the scrambler with a
> seed then letting the scrambler run with a fixed 64 bit data pattern into
> it, the patterns will not have any location that mimics the sync header. One
> would have to design a continuously changing data pattern synchronized with
> the seed load to get a data transition in a consistant spot for over 64 code
> blocks. If a repeating data pattern did that for any scrambler seed, it
> wouldn't be a very good scrambler.
>
> Regards,
> Pat
>
> -----Original Message-----
> From: Ben Brown [mailto:bbrown@xxxxxxxx]
> Sent: Thursday, May 10, 2001 9:59 AM
> To: serialpmd
> Subject: SJTP:Phantom sync headers
>
> All,
>
> Jonathan brought up an interesting point that I have
> elaborated upon below. Those who have begun or are
> interested in beginning to search for patterns should
> probably keep this in mind.
>
> Ben
>
> --
> -----------------------------------------
> Benjamin Brown
> AMCC
> 2 Commerce Park West
> Suite 104
> Bedford NH 03110
> 603-641-9837 - Work
> 603-491-0296 - Cell
> 603-626-7455 - Fax
> 603-798-4115 - Home Office
> bbrown@xxxxxxxx
> -----------------------------------------
--
-----------------------------------------
Benjamin Brown
AMCC
2 Commerce Park West
Suite 104
Bedford NH 03110
603-641-9837 - Work
603-491-0296 - Cell
603-626-7455 - Fax
603-798-4115 - Home Office
bbrown@xxxxxxxx
-----------------------------------------